# SIPNEX
> The Carrier Built by Operators, for Operators.

SIPNEX (SIPNEX Telecom, LLC) is an FCC-licensed US telecommunications carrier providing SIP trunking, DID phone numbers, toll-free numbers, SMS/MMS messaging, call tracking, and hosted PBX for call centers, predictive dialer operations, and high-volume outbound businesses.

## Carrier Credentials
- FCC Licensed Telecommunications Carrier
- Own STIR/SHAKEN Service Provider Certificate (SP-KI) — direct A-level attestation
- FCC Form 499 Filer (USF Contributor)
- Robocall Mitigation Database — Active Filing
- Registered RespOrg (Toll-Free Number Management)

## Contact
- Phone: (833) 665-2220
- Text (SMS): (972) 698-5633
- Email: contact@sipnex.ca
- Website: https://www.sipnex.ca
- Hours: Monday–Friday, 9am–6pm Central Time
- About SIPNEX: https://www.sipnex.ca/about
- Contact form: https://www.sipnex.ca/contact
- Book a demo: https://www.sipnex.ca/book-a-demo

## Services
- Services overview: https://www.sipnex.ca/services
- Documentation: https://www.sipnex.ca/docs
- SIP Trunking: https://www.sipnex.ca/services/sip-trunking
- SIP Trunking for PBX: https://www.sipnex.ca/services/sip-trunking-for-pbx
- DID Numbers: https://www.sipnex.ca/services/did-numbers
- Toll-Free Numbers: https://www.sipnex.ca/services/toll-free
- SMS & MMS Messaging: https://www.sipnex.ca/services/sms-messaging
- Call Tracking: https://www.sipnex.ca/services/call-tracking
- E911 Service: https://www.sipnex.ca/services/e911
- Texas Phone Numbers (DIDs): https://www.sipnex.ca/services/did-numbers/texas
- Los Angeles Phone Numbers (DIDs): https://www.sipnex.ca/services/did-numbers/los-angeles
- Florida Phone Numbers (DIDs): https://www.sipnex.ca/services/did-numbers/florida
- California Phone Numbers (DIDs): https://www.sipnex.ca/services/did-numbers/california
- New York Phone Numbers (DIDs): https://www.sipnex.ca/services/did-numbers/new-york
- Boston Phone Numbers (DIDs): https://www.sipnex.ca/services/did-numbers/boston
- Chicago Phone Numbers (DIDs): https://www.sipnex.ca/services/did-numbers/chicago
- Hosted PBX: https://www.sipnex.ca/services/hosted-pbx

## Solutions
- Solutions overview: https://www.sipnex.ca/solutions
- VICIdial Carrier: https://www.sipnex.ca/solutions/vicidial-carrier
- Predictive Dialer Carrier: https://www.sipnex.ca/solutions/predictive-dialer-carrier
- Call Center: https://www.sipnex.ca/solutions/call-center
- Political Polling: https://www.sipnex.ca/solutions/political-polling
- Wholesale VoIP: https://www.sipnex.ca/solutions/wholesale-voip
- Wholesale Voice Termination: https://www.sipnex.ca/solutions/wholesale-voice-termination
- Wholesale SIP Trunking: https://www.sipnex.ca/solutions/wholesale-sip-trunking
- VoIP Reseller Program: https://www.sipnex.ca/solutions/voip-reseller-program
- Teams Direct Routing: https://www.sipnex.ca/solutions/teams-direct-routing
- POTS Replacement: https://www.sipnex.ca/solutions/pots-replacement
- Dental Office Phone System: https://www.sipnex.ca/solutions/dental-office-phone-system
- Restaurant Phone System: https://www.sipnex.ca/solutions/restaurant-phone-system
- Real Estate Phone System: https://www.sipnex.ca/solutions/real-estate-phone-system
- Hospital Phone Systems: https://www.sipnex.ca/solutions/hospital-phone-systems
- Healthcare Phone Systems (hub): https://www.sipnex.ca/solutions/healthcare
- Medical Office Phone System: https://www.sipnex.ca/solutions/medical-office-phone-system
- Phone Systems for Law Firms: https://www.sipnex.ca/solutions/law-firm-phone-system
- Hotel Phone System: https://www.sipnex.ca/solutions/hotel-phone-system
- HIPAA-Compliant Texting: https://www.sipnex.ca/solutions/hipaa-compliant-texting
- FreePBX Hosting: https://www.sipnex.ca/solutions/freepbx-hosting
- Twilio Alternative: https://www.sipnex.ca/solutions/twilio-alternative

## Compliance
- Compliance overview: https://www.sipnex.ca/compliance
- STIR/SHAKEN: https://www.sipnex.ca/compliance/stir-shaken
- TCPA: https://www.sipnex.ca/compliance/tcpa
- Robocall Mitigation: https://www.sipnex.ca/compliance/robocall-mitigation
- FCC Licensing: https://www.sipnex.ca/compliance/fcc-licensing
- Legal overview: https://www.sipnex.ca/legal
- Master Services Agreement (MSA): https://www.sipnex.ca/legal/msa
- Terms of Service: https://www.sipnex.ca/legal/terms
- Service Level Agreement (SLA): https://www.sipnex.ca/legal/sla
- Acceptable Use Policy: https://www.sipnex.ca/legal/acceptable-use
- Privacy Policy: https://www.sipnex.ca/legal/privacy

## Pricing
- https://www.sipnex.ca/pricing

## Blog
- Blog index: https://www.sipnex.ca/blog
- 3CX Alternatives After the Licensing Changes: https://www.sipnex.ca/blog/3cx-alternatives
- 3CX SIP Trunk Setup (V20): https://www.sipnex.ca/blog/3cx-sip-trunk-setup
- 3CX vs FreePBX: Which PBX and What It Costs: https://www.sipnex.ca/blog/3cx-vs-freepbx
- 44 Country Code: Calling the UK, Explained: https://www.sipnex.ca/blog/44-country-code
- 49 Country Code: Calling Germany From the US: https://www.sipnex.ca/blog/49-country-code
- 52 Country Code: Mexico Dialing After the Reform: https://www.sipnex.ca/blog/52-country-code
- 6 Best Twilio Alternatives & Competitors 2026: https://www.sipnex.ca/blog/best-twilio-alternatives
- 7 Best Google Voice Alternatives for Business 2026: https://www.sipnex.ca/blog/google-voice-alternatives
- 7 Questions to Ask Your SIP Trunk Provider: https://www.sipnex.ca/blog/questions-to-ask-sip-trunk-provider
- 91 Country Code: How to Call India From the US: https://www.sipnex.ca/blog/91-country-code
- 911 for VoIP: E911 Requirements Explained: https://www.sipnex.ca/blog/e911-for-voip
- A-level vs B-level Attestation: https://www.sipnex.ca/blog/a-level-vs-b-level-attestation
- A2P 10DLC News: September 2026 Rule & Fee Tracker: https://www.sipnex.ca/blog/a2p-10dlc-news
- A2P 10DLC Registration Guide: https://www.sipnex.ca/blog/a2p-10dlc-registration-guide
- Abandoned Call Rate FCC Rules: https://www.sipnex.ca/blog/abandoned-call-rate-fcc-rules
- Answering Machine Detection (AMD): How It Works: https://www.sipnex.ca/blog/answering-machine-detection
- ASR, ACD, AHT — Telecom Acronyms: https://www.sipnex.ca/blog/asr-acd-aht-telecom-acronyms
- Auto-Dialer Laws 2026: https://www.sipnex.ca/blog/auto-dialer-laws-2026
- Automated Dialer Software — Compliance & Trunks: https://www.sipnex.ca/blog/automated-dialer-software
- Avaya IP Office SIP Trunk Configuration: https://www.sipnex.ca/blog/avaya-ip-office-sip-trunk
- Bandwidth vs Telnyx vs SIPNEX: https://www.sipnex.ca/blog/bandwidth-vs-telnyx-vs-sipnex
- Best SIP Trunk for VICIdial: 2026 Guide: https://www.sipnex.ca/blog/best-sip-trunk-for-vicidial
- Best SIP Trunk Providers 2026: https://www.sipnex.ca/blog/best-sip-trunk-providers-2026
- Best Small Business PBX — 2026 Buyer's Guide: https://www.sipnex.ca/blog/best-small-business-pbx
- Business Landline in 2026: Costs & Replacements: https://www.sipnex.ca/blog/business-landline
- Business Phone Number Registration: Every Portal: https://www.sipnex.ca/blog/business-phone-number-registration
- BYOC Meaning: Bring Your Own Carrier, Explained: https://www.sipnex.ca/blog/byoc-meaning
- Call Center Compliance Guide: https://www.sipnex.ca/blog/call-center-compliance-guide
- Call Center Dialer Systems: The 2026 Guide: https://www.sipnex.ca/blog/call-center-dialer
- Call Center Metrics That Matter: https://www.sipnex.ca/blog/call-center-metrics-that-matter
- Call Recording Laws by State — Two-Party Consent: https://www.sipnex.ca/blog/two-party-consent-states
- Caller ID Reputation Management: https://www.sipnex.ca/blog/caller-id-reputation-management
- Caller ID Spoofing — How It Works: https://www.sipnex.ca/blog/caller-id-spoofing-how-it-works
- Caller ID Test: See What Your Calls Display: https://www.sipnex.ca/blog/caller-id-test
- Campaign Verify: Political SMS Vetting Explained: https://www.sipnex.ca/blog/campaign-verify-political-sms-vetting
- Cloud Based Dialers: The 2026 Field Guide: https://www.sipnex.ca/blog/cloud-based-dialers
- Cloud PBX Pricing — What It Actually Costs: https://www.sipnex.ca/blog/cloud-pbx-pricing
- Cloud PBX Providers — Carrier-Direct vs Reseller: https://www.sipnex.ca/blog/cloud-pbx-providers
- CNAM Lookup Explained: https://www.sipnex.ca/blog/cnam-lookup-explained
- Country Code List: How to Dial From the US: https://www.sipnex.ca/blog/country-code-list
- Dialer Account Suspended? What to Do Now: https://www.sipnex.ca/blog/dialer-account-suspended-what-to-do
- Dialers for Insurance Agents: 2026 Guide: https://www.sipnex.ca/blog/dialers-for-insurance-agents
- Disable SIP ALG on FortiGate: https://www.sipnex.ca/blog/disable-sip-alg-fortigate
- Disable SIP ALG on Netgear: https://www.sipnex.ca/blog/disable-sip-alg-netgear
- Disable SIP ALG on pfSense: https://www.sipnex.ca/blog/disable-sip-alg-pfsense
- Disable SIP ALG on UniFi: https://www.sipnex.ca/blog/disable-sip-alg-unifi
- DNC Scrubbing: How to Scrub Call Lists Right: https://www.sipnex.ca/blog/dnc-scrubbing
- DTMF Tones — Meaning, RFC 4733, and Fixes: https://www.sipnex.ca/blog/dtmf-tones-explained
- Dynamic Number Insertion (DNI), Explained: https://www.sipnex.ca/blog/dynamic-number-insertion
- E.164 Format Explained: https://www.sipnex.ca/blog/e164-format-explained
- Elastic SIP Trunking Explained: https://www.sipnex.ca/blog/elastic-sip-trunking-explained
- Elevator Phone Line Requirements, Explained: https://www.sipnex.ca/blog/elevator-phone-line-requirements
- Email to SMS Gateway: What Still Works in 2026: https://www.sipnex.ca/blog/email-to-sms-gateway
- Fax Over IP: T.38 vs G.711, What Survives VoIP: https://www.sipnex.ca/blog/fax-over-ip-t38-guide
- Flowroute Login — Manage Portal & API Keys: https://www.sipnex.ca/blog/flowroute-login
- Flowroute Pricing — Every Published Rate: https://www.sipnex.ca/blog/flowroute-pricing
- Flowroute Review 2026: https://www.sipnex.ca/blog/flowroute-review
- Flowroute vs Telnyx vs SIPNEX: https://www.sipnex.ca/blog/flowroute-vs-telnyx-vs-sipnex
- FOC Date — The Day Your Number Actually Moves: https://www.sipnex.ca/blog/what-is-a-foc-date
- First Orion Number Registration: How It Works: https://www.sipnex.ca/blog/first-orion-number-registration
- Free Caller Registry: Who Can Use It, What It Fixes: https://www.sipnex.ca/blog/free-caller-registry-guide
- Free SIP Trunks: What You Actually Get: https://www.sipnex.ca/blog/free-sip-trunk
- FusionPBX SIP Trunk Setup: https://www.sipnex.ca/blog/fusionpbx-sip-trunk-setup
- G.711 vs G.729 Codec Comparison: https://www.sipnex.ca/blog/g711-vs-g729-codec-comparison
- GoAutoDial SIP Trunk & Carrier Setup Guide: https://www.sipnex.ca/blog/goautodial-sip-trunk
- HIPAA-Compliant Phone Service for Therapists: https://www.sipnex.ca/blog/hipaa-phone-service-for-therapists
- HIPAA-Compliant Phone Service, Explained: https://www.sipnex.ca/blog/hipaa-compliant-phone-service
- Hosted PBX vs SIP Trunking: https://www.sipnex.ca/blog/hosted-pbx-vs-sip-trunking
- Hosted Predictive Dialer — Options & Trunk Layer: https://www.sipnex.ca/blog/hosted-predictive-dialer
- How Many SIP Trunks Do I Need: https://www.sipnex.ca/blog/how-many-sip-trunks-do-i-need
- How to Become a VoIP Reseller in 2026: https://www.sipnex.ca/blog/how-to-become-a-voip-reseller
- How to Call Australia From the US: Steps & Times: https://www.sipnex.ca/blog/how-to-call-australia-from-us
- How to Call Mexico From the US: Exact Steps: https://www.sipnex.ca/blog/how-to-call-mexico-from-us
- How to Fix Packet Loss on VoIP Calls: https://www.sipnex.ca/blog/how-to-fix-packet-loss
- How to Get a Toll-Free Number: https://www.sipnex.ca/blog/how-to-get-toll-free-number
- How to Send Mass Text Messages the Legal Way: https://www.sipnex.ca/blog/how-to-send-mass-text-messages
- How VoIP Works: https://www.sipnex.ca/blog/how-voip-works
- Inbound Call Center Services, Explained: https://www.sipnex.ca/blog/inbound-call-center-services
- IVA vs IVR: What Call Centers Actually Need: https://www.sipnex.ca/blog/iva-vs-ivr
- Least Cost Routing in Telecom: How LCR Works: https://www.sipnex.ca/blog/least-cost-routing
- Local Presence Dialing: Legit Setup vs Spoofing: https://www.sipnex.ca/blog/local-presence-dialing
- MicroSIP Setup Guide: https://www.sipnex.ca/blog/microsip-setup-guide
- NPA-NXX — How US Phone Numbers Break Down: https://www.sipnex.ca/blog/npa-nxx-explained
- Number Porting Explained: https://www.sipnex.ca/blog/number-porting-explained
- One-Way Audio on VoIP: The Complete Fix: https://www.sipnex.ca/blog/voip-one-way-audio-fix
- OpenPhone (Quo) Alternatives for Outbound: https://www.sipnex.ca/blog/openphone-alternative
- Operator Connect vs Direct Routing, Compared: https://www.sipnex.ca/blog/operator-connect-vs-direct-routing
- Operator Connect — What It Is and Who It's For: https://www.sipnex.ca/blog/operator-connect
- Outbound Call Center Services — The Full Picture: https://www.sipnex.ca/blog/outbound-call-center-services
- PBX vs VoIP — What's the Difference: https://www.sipnex.ca/blog/pbx-vs-voip
- Phone Extensions — How to Dial, Set Up & Route: https://www.sipnex.ca/blog/phone-extensions-explained
- PhoneBurner Alternatives: 2026 Honest Guide: https://www.sipnex.ca/blog/phoneburner-alternatives
- Porting Status Check: Where Your Number Is: https://www.sipnex.ca/blog/porting-status-check
- Post Dial Delay: Causes and Fixes: https://www.sipnex.ca/blog/post-dial-delay
- Potential Spam: How to Fix the Label on Your Calls: https://www.sipnex.ca/blog/potential-spam-label-fix
- POTS in a Box — What It Is and Its Limits: https://www.sipnex.ca/blog/pots-in-a-box
- POTS Lines Going Away — The Real Timeline: https://www.sipnex.ca/blog/pots-lines-going-away
- Predictive vs Progressive Dialer: https://www.sipnex.ca/blog/predictive-vs-progressive-dialer
- Professional Voicemail Greetings — 40+ Scripts: https://www.sipnex.ca/blog/professional-voicemail-greetings
- Reseller vs Carrier Attestation: https://www.sipnex.ca/blog/reseller-vs-carrier-attestation
- RingCentral SIP Trunking: What It Really Is: https://www.sipnex.ca/blog/ringcentral-sip-trunk
- Robocall Mitigation Database Explained: https://www.sipnex.ca/blog/robocall-mitigation-database-explained
- RTP Protocol Explained: https://www.sipnex.ca/blog/rtp-protocol-explained
- Shared Line Appearance (SLA, SCA, BLA): https://www.sipnex.ca/blog/shared-line-appearance
- SIM Gateway vs SIP Trunk for Dialers: https://www.sipnex.ca/blog/sim-gateway-vs-sip-trunk
- SIP 403 Forbidden: Causes and Fixes: https://www.sipnex.ca/blog/sip-403-forbidden
- SIP 503: Service Unavailable, Explained: https://www.sipnex.ca/blog/sip-503-service-unavailable
- SIP 606 Not Acceptable — Causes and Fixes: https://www.sipnex.ca/blog/sip-606-not-acceptable
- SIP Code 603 — Now "Network Blocked": https://www.sipnex.ca/blog/sip-code-603
- SIP Providers That Allow Auto Dialers: https://www.sipnex.ca/blog/sip-providers-that-allow-autodialers
- SIP Response Codes — The Operator's Reference: https://www.sipnex.ca/blog/sip-response-codes
- SIP Trunk Configuration Guide — Asterisk & FreePBX: https://www.sipnex.ca/blog/sip-trunk-configuration-guide
- SIP Trunk Pricing Comparison: https://www.sipnex.ca/blog/sip-trunk-pricing-comparison
- SIP vs PRI — Why T1 Lines Are Dead: https://www.sipnex.ca/blog/sip-vs-pri-why-t1-lines-are-dead
- SIP vs VoIP Difference: https://www.sipnex.ca/blog/sip-vs-voip-difference
- Skyetel Review 2026: A Carrier’s Honest Take: https://www.sipnex.ca/blog/skyetel-review
- SMS API Explained: https://www.sipnex.ca/blog/sms-api-explained
- SMS Compliance Checklist for Business Texting: https://www.sipnex.ca/blog/sms-compliance-checklist
- SMS Pricing Per Message: The Real Cost Stack: https://www.sipnex.ca/blog/sms-pricing-per-message
- SMS Short Codes: When 5 Digits Beat 10: https://www.sipnex.ca/blog/sms-short-codes-explained
- SMS vs MMS — Complete Comparison: https://www.sipnex.ca/blog/sms-vs-mms-complete-comparison
- STIR/SHAKEN on Asterisk and FreePBX: https://www.sipnex.ca/blog/asterisk-stir-shaken
- STIR/SHAKEN PASSporT, JWT & Certificate Chain: https://www.sipnex.ca/blog/how-stir-shaken-works-technical
- TBI Telecom Review — What We Verified: https://www.sipnex.ca/blog/tbi-telecom-review
- TCPA Compliance Checklist: https://www.sipnex.ca/blog/tcpa-compliance-checklist
- TCPA Compliance Tools: The Stack That Works: https://www.sipnex.ca/blog/tcpa-compliance-tools
- TCPA Text Message Rules: Consent That Holds Up: https://www.sipnex.ca/blog/tcpa-text-message-compliance
- Telnyx Alternative — Telnyx vs SIPNEX Compared: https://www.sipnex.ca/blog/telnyx-vs-sipnex-comparison
- Telnyx Login — Mission Control Portal Guide: https://www.sipnex.ca/blog/telnyx-login
- Telnyx Pricing Explained: https://www.sipnex.ca/blog/telnyx-pricing
- Telnyx Promo Code — What Actually Exists: https://www.sipnex.ca/blog/telnyx-promo-code
- Telnyx Status — Outage Checks for Operators: https://www.sipnex.ca/blog/telnyx-status
- Telnyx vs Twilio — Full 2026 Comparison: https://www.sipnex.ca/blog/telnyx-vs-twilio
- Toll-Free Meaning: Who Pays and How It Works: https://www.sipnex.ca/blog/toll-free-meaning
- Toll-Free Number Providers — 2026 Comparison: https://www.sipnex.ca/blog/toll-free-number-providers
- Toll-Free vs Local Number: https://www.sipnex.ca/blog/toll-free-vs-local-number
- Traditional PBX vs Cloud PBX — When to Move: https://www.sipnex.ca/blog/traditional-pbx-vs-cloud-pbx
- Twilio Elastic SIP Trunking Pricing Guide: https://www.sipnex.ca/blog/twilio-elastic-sip-trunking-pricing
- Twilio vs SIPNEX Comparison: https://www.sipnex.ca/blog/twilio-vs-sipnex-comparison
- UniFi Talk with a Third-Party SIP Trunk: https://www.sipnex.ca/blog/unifi-talk-sip-trunk
- Unlimited SIP Trunks: The Honest Math: https://www.sipnex.ca/blog/unlimited-sip-trunk-provider
- USA Country Code: What +1 Covers and How It Works: https://www.sipnex.ca/blog/usa-country-code
- Vanity Phone Numbers Guide: https://www.sipnex.ca/blog/vanity-phone-numbers-guide
- ViciBox Install Guide — Download to Dialing: https://www.sipnex.ca/blog/vicibox-install-guide
- VICIdial Alternatives: The Honest 2026 Map: https://www.sipnex.ca/blog/vicidial-alternatives
- VICIdial Backup Carrier & Failover Setup: https://www.sipnex.ca/blog/vicidial-backup-carrier-failover
- VICIdial Download & Login — Official Paths: https://www.sipnex.ca/blog/vicidial-download
- VICIdial Hosting — Providers Compared: https://www.sipnex.ca/blog/vicidial-hosting
- VICIdial Pricing — What Free Actually Costs: https://www.sipnex.ca/blog/vicidial-pricing
- VICIdial SIP Trunk Setup Guide: https://www.sipnex.ca/blog/vicidial-sip-trunk-setup-guide
- VICIdial Troubleshooting: Symptom-First Guide: https://www.sipnex.ca/blog/vicidial-troubleshooting
- VoIP for Business — Buyer's Guide: https://www.sipnex.ca/blog/voip-for-business-buyers-guide
- VoIP Glossary — 60 Terms: https://www.sipnex.ca/blog/voip-glossary-60-terms
- VoIP Innovations Alternative: Where to Go Now: https://www.sipnex.ca/blog/voip-innovations-alternative
- VoIP Quality — Jitter, Latency, MOS: https://www.sipnex.ca/blog/voip-quality-jitter-latency-mos
- VoIP Routes: Origination, Termination, Quality: https://www.sipnex.ca/blog/voip-routes
- VoIP Security Threats and Protection: https://www.sipnex.ca/blog/voip-security-threats-protection
- VoIP vs Landline: https://www.sipnex.ca/blog/voip-vs-landline
- What Is a DID Number: https://www.sipnex.ca/blog/what-is-a-did-number
- What Is a Local Exchange Carrier? ILEC vs CLEC: https://www.sipnex.ca/blog/what-is-a-local-exchange-carrier
- What Is a Predictive Dialer: https://www.sipnex.ca/blog/what-is-a-predictive-dialer
- What Is a RespOrg? Toll-Free Control, Explained: https://www.sipnex.ca/blog/what-is-a-resporg
- What Is a Session Border Controller (SBC)?: https://www.sipnex.ca/blog/what-is-a-session-border-controller
- What Is a Virtual Phone Number? How They Work: https://www.sipnex.ca/blog/what-is-a-virtual-phone-number
- What Is a VoIP Dialer? Stack, Types, Costs: https://www.sipnex.ca/blog/voip-dialer
- What Is a VoIP Number? A Buyer's Explainer: https://www.sipnex.ca/blog/what-is-a-voip-number
- What Is A2P Messaging? 10DLC, TF & Short Codes: https://www.sipnex.ca/blog/what-is-a2p-messaging
- What Is an LRN? Location Routing Numbers Explained: https://www.sipnex.ca/blog/what-is-an-lrn
- What Is an LSR — Local Service Request: https://www.sipnex.ca/blog/what-is-an-lsr
- What Is an SMS Gateway? SMSC to API, Explained: https://www.sipnex.ca/blog/what-is-an-sms-gateway
- What Is Bandwidth.com: https://www.sipnex.ca/blog/what-is-bandwidth-com
- What Is Click to Call? How It Actually Works: https://www.sipnex.ca/blog/what-is-click-to-call
- What Is NPAC — The Database Behind Porting: https://www.sipnex.ca/blog/what-is-npac
- What Is PBX (2026): https://www.sipnex.ca/blog/what-is-pbx-2026
- What Is PRI? The T1 Phone Line, Explained: https://www.sipnex.ca/blog/what-is-pri
- What Is SIP ALG — Why to Disable It: https://www.sipnex.ca/blog/what-is-sip-alg
- What Is SIP Trunking: https://www.sipnex.ca/blog/what-is-sip-trunking
- What Is Telnyx: https://www.sipnex.ca/blog/what-is-telnyx
- What Is The Campaign Registry (TCR)?: https://www.sipnex.ca/blog/what-is-the-campaign-registry
- What Is the SIP Protocol: https://www.sipnex.ca/blog/what-is-sip-protocol
- What Is Twilio: https://www.sipnex.ca/blog/what-is-twilio
- What Is VICIdial: https://www.sipnex.ca/blog/what-is-vicidial
- White Label VoIP Providers: 2026 Guide: https://www.sipnex.ca/blog/white-label-voip-providers
- Why Is Flowroute Inc Calling Me: https://www.sipnex.ca/blog/why-is-flowroute-calling-me
- Why Is Telnyx LLC Calling Me: https://www.sipnex.ca/blog/why-is-telnyx-calling-me
- Yeastar SIP Trunk Setup (P-Series): https://www.sipnex.ca/blog/yeastar-sip-trunk-setup

## Area Code Guides
- What Is an Area Code (hub): https://www.sipnex.ca/blog/what-is-an-area-code
- Texas Area Codes: All 29 Codes by City and Region: https://www.sipnex.ca/blog/texas-area-codes
- 5 Area Codes You Should Never Answer: Fact-Check: https://www.sipnex.ca/blog/area-codes-you-should-never-answer
- 201 Area Code: New Jersey's First Number: https://www.sipnex.ca/blog/201-area-code
- 202 Area Code: DC’s 74-Year One-Code Run: https://www.sipnex.ca/blog/202-area-code
- 203 Area Code: Connecticut's Gold Coast Number: https://www.sipnex.ca/blog/203-area-code
- 205 Area Code: Birmingham and the Shelved 659: https://www.sipnex.ca/blog/205-area-code
- 206 Area Code: Seattle, Washington: https://www.sipnex.ca/blog/206-area-code
- 207 Area Code: All of Maine on Seven Digits: https://www.sipnex.ca/blog/207-area-code
- 208 Area Code: Idaho’s Statewide Original: https://www.sipnex.ca/blog/208-area-code
- 209 Area Code: Stockton, Modesto and Gold Country: https://www.sipnex.ca/blog/209-area-code
- 210 Area Code: San Antonio's City Code: https://www.sipnex.ca/blog/210-area-code
- 212 Area Code: Manhattan’s Original Number: https://www.sipnex.ca/blog/212-area-code
- 213 Area Code: Downtown LA's Original Number: https://www.sipnex.ca/blog/213-area-code
- 214 Area Code: Dallas's Original Number: https://www.sipnex.ca/blog/214-area-code
- 215 Area Code: Philadelphia’s 1947 Original: https://www.sipnex.ca/blog/215-area-code
- 216 Area Code: Cleveland’s Original 1947 Number: https://www.sipnex.ca/blog/216-area-code
- 217 Area Code: Springfield, Champaign and Decatur: https://www.sipnex.ca/blog/217-area-code
- 219 Area Code: Gary, Hammond, Northwest Indiana: https://www.sipnex.ca/blog/219-area-code
- 224 Area Code: Lake County and the North Shore: https://www.sipnex.ca/blog/224-area-code
- 225 Area Code: Greater Baton Rouge, Louisiana: https://www.sipnex.ca/blog/225-area-code
- 229 Area Code: Albany, Valdosta, Southwest Georgia: https://www.sipnex.ca/blog/229-area-code
- 239 Area Code: Fort Myers, Naples, Cape Coral: https://www.sipnex.ca/blog/239-area-code
- 240 Area Code: Maryland's Overlay Pioneer: https://www.sipnex.ca/blog/240-area-code
- 248 Area Code: Oakland County, Michigan: https://www.sipnex.ca/blog/248-area-code
- 251 Area Code: Mobile and Alabama’s Gulf Coast: https://www.sipnex.ca/blog/251-area-code
- 253 Area Code: Tacoma and the South Sound: https://www.sipnex.ca/blog/253-area-code
- 254 Area Code: Waco, Killeen and Central Texas: https://www.sipnex.ca/blog/254-area-code
- 256 Area Code: Huntsville, Decatur and Anniston: https://www.sipnex.ca/blog/256-area-code
- 267 Area Code: Philadelphia Beyond 215: https://www.sipnex.ca/blog/267-area-code
- 270 Area Code: Bowling Green, Owensboro, Paducah: https://www.sipnex.ca/blog/270-area-code
- 281 Area Code: Houston's Suburban Ring: https://www.sipnex.ca/blog/281-area-code
- 301 Area Code: Maryland’s Original Number: https://www.sipnex.ca/blog/301-area-code
- 302 Area Code: All of Delaware, One Code: https://www.sipnex.ca/blog/302-area-code
- 303 Area Code: The Code Denver Kept: https://www.sipnex.ca/blog/303-area-code
- 304 Area Code: All of West Virginia Since 1947: https://www.sipnex.ca/blog/304-area-code
- 305 Area Code: Miami's Original Florida Number: https://www.sipnex.ca/blog/305-area-code
- 309 Area Code: Peoria, Bloomington, Quad Cities: https://www.sipnex.ca/blog/309-area-code
- 310 Area Code: LA's Westside Signature: https://www.sipnex.ca/blog/310-area-code
- 312 Area Code: Chicago's Downtown Original: https://www.sipnex.ca/blog/312-area-code
- 313 Area Code: Detroit’s 1947 Original: https://www.sipnex.ca/blog/313-area-code
- 314 Area Code: St. Louis’s 1947 Original: https://www.sipnex.ca/blog/314-area-code
- 317 Area Code: Indianapolis, IND to the Core: https://www.sipnex.ca/blog/317-area-code
- 319 Area Code: Cedar Rapids, Iowa City, Waterloo: https://www.sipnex.ca/blog/319-area-code
- 321 Area Code: Florida’s Space Coast: https://www.sipnex.ca/blog/321-area-code
- 330 Area Code: Akron, Canton, and Youngstown: https://www.sipnex.ca/blog/330-area-code
- 332 Area Code: Manhattan's Newest Number: https://www.sipnex.ca/blog/332-area-code
- 334 Area Code: Montgomery and the 483 Overlay: https://www.sipnex.ca/blog/334-area-code
- 336 Area Code: The Piedmont Triad’s Fourth Number: https://www.sipnex.ca/blog/336-area-code
- 347 Area Code: Brooklyn, Queens & the Bronx: https://www.sipnex.ca/blog/347-area-code
- 352 Area Code: Florida’s Shortest Number Runway: https://www.sipnex.ca/blog/352-area-code
- 360 Area Code: Washington’s Ring Around Seattle: https://www.sipnex.ca/blog/360-area-code
- 361 Area Code: Corpus Christi and the Coastal Bend: https://www.sipnex.ca/blog/361-area-code
- 385 Area Code: Salt Lake City and the Wasatch Front: https://www.sipnex.ca/blog/385-area-code
- 401 Area Code: Rhode Island’s 1947 Original: https://www.sipnex.ca/blog/401-area-code
- 402 Area Code: Omaha, Lincoln and Eastern Nebraska: https://www.sipnex.ca/blog/402-area-code
- 404 Area Code: Atlanta Inside the Perimeter: https://www.sipnex.ca/blog/404-area-code
- 405 Area Code: Once All of Oklahoma, Now OKC: https://www.sipnex.ca/blog/405-area-code
- 407 Area Code: Orlando's Theme-Park Number: https://www.sipnex.ca/blog/407-area-code
- 408 Area Code: Silicon Valley's Number: https://www.sipnex.ca/blog/408-area-code
- 409 Area Code: Beaumont, Port Arthur, Galveston: https://www.sipnex.ca/blog/409-area-code
- 410 Area Code: Baltimore and the Chesapeake: https://www.sipnex.ca/blog/410-area-code
- 412 Area Code: Pittsburgh Numbers Since 1947: https://www.sipnex.ca/blog/412-area-code
- 413 Area Code: Springfield and the Berkshires: https://www.sipnex.ca/blog/413-area-code
- 415 Area Code: San Francisco's Original Number: https://www.sipnex.ca/blog/415-area-code
- 417 Area Code: Springfield, Joplin and the Ozarks: https://www.sipnex.ca/blog/417-area-code
- 419 Area Code: Toledo and Northwest Ohio: https://www.sipnex.ca/blog/419-area-code
- 424 Area Code: California's First Overlay: https://www.sipnex.ca/blog/424-area-code
- 425 Area Code: Bellevue, Everett and the Eastside: https://www.sipnex.ca/blog/425-area-code
- 434 Area Code: Where Virginia Still Dials Seven: https://www.sipnex.ca/blog/434-area-code
- 440 Area Code: Cleveland’s Suburban Ring: https://www.sipnex.ca/blog/440-area-code
- 442 Area Code: The Split That Became an Overlay: https://www.sipnex.ca/blog/442-area-code
- 443 Area Code: The Overlay That Waited: https://www.sipnex.ca/blog/443-area-code
- 469 Area Code: Dallas's Overlay Workhorse: https://www.sipnex.ca/blog/469-area-code
- 470 Area Code: Atlanta’s Metro-Wide Overlay: https://www.sipnex.ca/blog/470-area-code
- 479 Area Code: Northwest Arkansas and Fort Smith: https://www.sipnex.ca/blog/479-area-code
- 480 Area Code: Phoenix's East Valley Number: https://www.sipnex.ca/blog/480-area-code
- 484 Area Code: Lehigh Valley to the Main Line: https://www.sipnex.ca/blog/484-area-code
- 501 Area Code: Little Rock and Central Arkansas: https://www.sipnex.ca/blog/501-area-code
- 502 Area Code: Kentucky’s First, Louisville’s Own: https://www.sipnex.ca/blog/502-area-code
- 503 Area Code: Portland and Northwest Oregon: https://www.sipnex.ca/blog/503-area-code
- 504 Area Code: New Orleans, Louisiana: https://www.sipnex.ca/blog/504-area-code
- 505 Area Code: Albuquerque, Santa Fe, Farmington: https://www.sipnex.ca/blog/505-area-code
- 507 Area Code: Rochester, Mankato, Southern MN: https://www.sipnex.ca/blog/507-area-code
- 508 Area Code: Worcester to Cape Cod: https://www.sipnex.ca/blog/508-area-code
- 509 Area Code: Spokane & Eastern Washington: https://www.sipnex.ca/blog/509-area-code
- 510 Area Code: Oakland and the East Bay: https://www.sipnex.ca/blog/510-area-code
- 512 Area Code: Austin's Startup Identity: https://www.sipnex.ca/blog/512-area-code
- 513 Area Code: Cincinnati and the 283 Overlay: https://www.sipnex.ca/blog/513-area-code
- 515 Area Code: Des Moines, Ames and Central Iowa: https://www.sipnex.ca/blog/515-area-code
- 516 Area Code: Nassau County's Long Island Number: https://www.sipnex.ca/blog/516-area-code
- 517 Area Code: Lansing, Jackson, Mid-Michigan: https://www.sipnex.ca/blog/517-area-code
- 518 Area Code: Albany’s Map That Never Moved: https://www.sipnex.ca/blog/518-area-code
- 520 Area Code: Tucson and Arizona’s Southeast: https://www.sipnex.ca/blog/520-area-code
- 530 Area Code: Redding, Chico, Davis and Tahoe: https://www.sipnex.ca/blog/530-area-code
- 540 Area Code: Roanoke, Winchester, Fredericksburg: https://www.sipnex.ca/blog/540-area-code
- 541 Area Code: Eugene, Bend and Most of Oregon: https://www.sipnex.ca/blog/541-area-code
- 561 Area Code: Palm Beach County's Number: https://www.sipnex.ca/blog/561-area-code
- 562 Area Code: Long Beach Stands Alone: https://www.sipnex.ca/blog/562-area-code
- 564 Area Code: The Overlay Covering Half a State: https://www.sipnex.ca/blog/564-area-code
- 571 Area Code: Northern Virginia’s Second Code: https://www.sipnex.ca/blog/571-area-code
- 573 Area Code: Columbia to Cape Girardeau: https://www.sipnex.ca/blog/573-area-code
- 585 Area Code: Rochester and the Genesee Valley: https://www.sipnex.ca/blog/585-area-code
- 586 Area Code: Macomb County, Split from 810: https://www.sipnex.ca/blog/586-area-code
- 601 Area Code: Jackson, Hattiesburg, Meridian: https://www.sipnex.ca/blog/601-area-code
- 602 Area Code: Phoenix After the Boundary Merge: https://www.sipnex.ca/blog/602-area-code
- 603 Area Code: New Hampshire's One and Only: https://www.sipnex.ca/blog/603-area-code
- 605 Area Code: South Dakota, Corner to Corner: https://www.sipnex.ca/blog/605-area-code
- 606 Area Code: Kentucky’s Appalachian East: https://www.sipnex.ca/blog/606-area-code
- 607 Area Code: Binghamton, Ithaca, and Elmira: https://www.sipnex.ca/blog/607-area-code
- 609 Area Code: Trenton, Princeton, and the Shore: https://www.sipnex.ca/blog/609-area-code
- 612 Area Code: Minneapolis, the Shrunken Original: https://www.sipnex.ca/blog/612-area-code
- 614 Area Code: Columbus, Ohio’s Capital Code: https://www.sipnex.ca/blog/614-area-code
- 615 Area Code: Nashville's Music City Number: https://www.sipnex.ca/blog/615-area-code
- 617 Area Code: Boston's Compact Powerhouse: https://www.sipnex.ca/blog/617-area-code
- 618 Area Code: Belleville, Carbondale, Metro East: https://www.sipnex.ca/blog/618-area-code
- 619 Area Code: San Diego's Signature Number: https://www.sipnex.ca/blog/619-area-code
- 623 Area Code: West Valley Roots, Metro Reach: https://www.sipnex.ca/blog/623-area-code
- 626 Area Code: The San Gabriel Valley's Number: https://www.sipnex.ca/blog/626-area-code
- 630 Area Code: DuPage and the Western Suburbs: https://www.sipnex.ca/blog/630-area-code
- 631 Area Code: Suffolk County, Long Island: https://www.sipnex.ca/blog/631-area-code
- 646 Area Code: Manhattan's Second Number: https://www.sipnex.ca/blog/646-area-code
- 650 Area Code: Silicon Valley’s Front Door: https://www.sipnex.ca/blog/650-area-code
- 651 Area Code: St. Paul’s East Metro Number: https://www.sipnex.ca/blog/651-area-code
- 657 Area Code: Nine Years to Reach Anaheim: https://www.sipnex.ca/blog/657-area-code
- 661 Area Code: Bakersfield and the Inland Split: https://www.sipnex.ca/blog/661-area-code
- 662 Area Code: Southaven, Tupelo and Oxford: https://www.sipnex.ca/blog/662-area-code
- 682 Area Code: Fort Worth’s Year-2000 Overlay: https://www.sipnex.ca/blog/682-area-code
- 701 Area Code: How North Dakota Kept Seven Digits: https://www.sipnex.ca/blog/701-area-code
- 702 Area Code: Las Vegas Around the Clock: https://www.sipnex.ca/blog/702-area-code
- 703 Area Code: Northern Virginia Since 1947: https://www.sipnex.ca/blog/703-area-code
- 704 Area Code: North Carolina’s 1947 Original: https://www.sipnex.ca/blog/704-area-code
- 706 Area Code: Augusta, Columbus, North Georgia: https://www.sipnex.ca/blog/706-area-code
- 708 Area Code: Chicago’s South and West Suburbs: https://www.sipnex.ca/blog/708-area-code
- 713 Area Code: Houston's Original Code: https://www.sipnex.ca/blog/713-area-code
- 714 Area Code: The Code That Keeps Running Out: https://www.sipnex.ca/blog/714-area-code
- 715 Area Code: Wisconsin’s North, Shared With 534: https://www.sipnex.ca/blog/715-area-code
- 716 Area Code: Buffalo and the 624 Overlay: https://www.sipnex.ca/blog/716-area-code
- 717 Area Code: Harrisburg, Lancaster and York: https://www.sipnex.ca/blog/717-area-code
- 718 Area Code: NYC’s Outer-Borough Original: https://www.sipnex.ca/blog/718-area-code
- 719 Area Code: Colorado's Last Solo Code: https://www.sipnex.ca/blog/719-area-code
- 720 Area Code: Denver's Second Layer: https://www.sipnex.ca/blog/720-area-code
- 724 Area Code: The Ring Around Pittsburgh: https://www.sipnex.ca/blog/724-area-code
- 725 Area Code: The Las Vegas Overlay: https://www.sipnex.ca/blog/725-area-code
- 727 Area Code: St. Petersburg and Clearwater: https://www.sipnex.ca/blog/727-area-code
- 732 Area Code: Central Jersey and the Shore: https://www.sipnex.ca/blog/732-area-code
- 734 Area Code: Ann Arbor, Ypsilanti, Downriver: https://www.sipnex.ca/blog/734-area-code
- 737 Area Code: Assigned 2000, Live in 2013: https://www.sipnex.ca/blog/737-area-code
- 740 Area Code: Zanesville, Athens, Lancaster: https://www.sipnex.ca/blog/740-area-code
- 754 Area Code: Broward’s Fort Lauderdale Overlay: https://www.sipnex.ca/blog/754-area-code
- 757 Area Code: Hampton Roads, Virginia: https://www.sipnex.ca/blog/757-area-code
- 760 Area Code: SoCal’s Desert and North County: https://www.sipnex.ca/blog/760-area-code
- 763 Area Code: Coon Rapids, Blaine, Maple Grove: https://www.sipnex.ca/blog/763-area-code
- 765 Area Code: Central Indiana’s Horseshoe: https://www.sipnex.ca/blog/765-area-code
- 770 Area Code: Atlanta's Suburban Ring: https://www.sipnex.ca/blog/770-area-code
- 772 Area Code: Florida’s Treasure Coast: https://www.sipnex.ca/blog/772-area-code
- 773 Area Code: Chicago Beyond the Loop: https://www.sipnex.ca/blog/773-area-code
- 774 Area Code: The Second Voice on the 508 Map: https://www.sipnex.ca/blog/774-area-code
- 775 Area Code: Reno and the Rest of Nevada: https://www.sipnex.ca/blog/775-area-code
- 781 Area Code: Boston’s Route 128 Belt: https://www.sipnex.ca/blog/781-area-code
- 786 Area Code: Miami's Mobile-Era Overlay: https://www.sipnex.ca/blog/786-area-code
- 800 Area Code: History, Trust, and Availability: https://www.sipnex.ca/blog/800-area-code
- 803 Area Code: Columbia and the SC Midlands: https://www.sipnex.ca/blog/803-area-code
- 804 Area Code: Richmond VA and the 686 Overlay: https://www.sipnex.ca/blog/804-area-code
- 805 Area Code: California's Central Coast Number: https://www.sipnex.ca/blog/805-area-code
- 806 Area Code: Amarillo, Lubbock and the Panhandle: https://www.sipnex.ca/blog/806-area-code
- 808 Area Code: Every Hawaiian Island, One Code: https://www.sipnex.ca/blog/808-area-code
- 810 Area Code: Flint, Port Huron, and Lapeer: https://www.sipnex.ca/blog/810-area-code
- 812 Area Code: Indiana’s Southern Third Since 1947: https://www.sipnex.ca/blog/812-area-code
- 813 Area Code: Tampa and the New 656: https://www.sipnex.ca/blog/813-area-code
- 815 Area Code: Northern Illinois Outside Chicago: https://www.sipnex.ca/blog/815-area-code
- 816 Area Code: Kansas City’s 22-Year Overlay Wait: https://www.sipnex.ca/blog/816-area-code
- 817 Area Code: Fort Worth’s Number Since 1953: https://www.sipnex.ca/blog/817-area-code
- 818 Area Code: The San Fernando Valley's Own: https://www.sipnex.ca/blog/818-area-code
- 832 Area Code: The Overlay That Merged Houston: https://www.sipnex.ca/blog/832-area-code
- 833 Area Code: The Newest Toll-Free Prefix: https://www.sipnex.ca/blog/833-area-code
- 843 Area Code: Charleston and the SC Coast: https://www.sipnex.ca/blog/843-area-code
- 844 Area Code: Scam or Legit? The Verdict: https://www.sipnex.ca/blog/844-area-code
- 845 Area Code: Hudson Valley, Now Paired With 329: https://www.sipnex.ca/blog/845-area-code
- 847 Area Code: Chicago’s Northern Suburbs: https://www.sipnex.ca/blog/847-area-code
- 850 Area Code: Florida’s Panhandle and the 448: https://www.sipnex.ca/blog/850-area-code
- 855 Area Code: Scam or Legit? How to Check: https://www.sipnex.ca/blog/855-area-code
- 856 Area Code: Camden, Cherry Hill, Vineland: https://www.sipnex.ca/blog/856-area-code
- 857 Area Code: The Other Boston Number: https://www.sipnex.ca/blog/857-area-code
- 858 Area Code: North San Diego, La Jolla to Poway: https://www.sipnex.ca/blog/858-area-code
- 860 Area Code: Hartford and Eastern Connecticut: https://www.sipnex.ca/blog/860-area-code
- 862 Area Code: North Jersey’s Overlay of 973: https://www.sipnex.ca/blog/862-area-code
- 863 Area Code: Lakeland, Winter Haven, Sebring: https://www.sipnex.ca/blog/863-area-code
- Area Code 866: Who Is Calling and Is It a Scam?: https://www.sipnex.ca/blog/866-area-code
- 872 Area Code: Chicago’s Citywide Overlay: https://www.sipnex.ca/blog/872-area-code
- 877 Area Code: No Location, Just a Toll-Free Prefix: https://www.sipnex.ca/blog/877-area-code
- 888 Area Code vs 800: Is There a Difference?: https://www.sipnex.ca/blog/888-area-code
- 901 Area Code: Memphis, Tennessee’s Charter Code: https://www.sipnex.ca/blog/901-area-code
- 903 Area Code: Tyler, Texarkana and Sherman: https://www.sipnex.ca/blog/903-area-code
- 904 Area Code: Jacksonville and the New 324: https://www.sipnex.ca/blog/904-area-code
- 909 Area Code: San Bernardino and the 840 Overlay: https://www.sipnex.ca/blog/909-area-code
- 912 Area Code: Savannah, Brunswick and the Coast: https://www.sipnex.ca/blog/912-area-code
- 913 Area Code: Kansas City’s Kansas Side: https://www.sipnex.ca/blog/913-area-code
- 914 Area Code: Westchester County’s 1947 Original: https://www.sipnex.ca/blog/914-area-code
- 915 Area Code: El Paso and Far West Texas: https://www.sipnex.ca/blog/915-area-code
- 916 Area Code: Sacramento's Capital Number: https://www.sipnex.ca/blog/916-area-code
- 917 Area Code: New York's All-Borough Number: https://www.sipnex.ca/blog/917-area-code
- 918 Area Code: Tulsa and Eastern Oklahoma: https://www.sipnex.ca/blog/918-area-code
- 919 Area Code: Raleigh and the Research Triangle: https://www.sipnex.ca/blog/919-area-code
- 925 Area Code: Concord, Walnut Creek, Livermore: https://www.sipnex.ca/blog/925-area-code
- 928 Area Code: Arizona Beyond Phoenix and Tucson: https://www.sipnex.ca/blog/928-area-code
- 929 Area Code: NYC's Outer-Borough Overlay: https://www.sipnex.ca/blog/929-area-code
- 936 Area Code: Texas’s Seven-Digit Holdout: https://www.sipnex.ca/blog/936-area-code
- 937 Area Code: Dayton, Springfield, and 326: https://www.sipnex.ca/blog/937-area-code
- 940 Area Code: Wichita Falls, Denton, Red River: https://www.sipnex.ca/blog/940-area-code
- 941 Area Code: Sarasota, Bradenton, Port Charlotte: https://www.sipnex.ca/blog/941-area-code
- 949 Area Code: Orange County's Coastal Number: https://www.sipnex.ca/blog/949-area-code
- 951 Area Code: Riverside's Inland Empire Number: https://www.sipnex.ca/blog/951-area-code
- 954 Area Code: Fort Lauderdale & Broward County: https://www.sipnex.ca/blog/954-area-code
- 972 Area Code: The Dallas Suburbs' Number: https://www.sipnex.ca/blog/972-area-code
- 973 Area Code: Newark and North Jersey’s Number: https://www.sipnex.ca/blog/973-area-code
- 978 Area Code: Lowell, Lawrence and Cape Ann: https://www.sipnex.ca/blog/978-area-code
- 980 Area Code: Charlotte’s Growth Overlay: https://www.sipnex.ca/blog/980-area-code
- 985 Area Code: Slidell, Hammond, Houma, Thibodaux: https://www.sipnex.ca/blog/985-area-code
- 989 Area Code: Saginaw, Bay City, Midland, Alpena: https://www.sipnex.ca/blog/989-area-code