FCC LICENSED CARRIER ·499 FILER ·STIR/SHAKEN CERTIFIED
SIPNEX
Toll-Free Numbers

Toll-free numbers. Direct from the RespOrg.

800, 888, 877, 866, 855, 844, 833 — all prefixes, vanity search, 24-hour provisioning. SIPNEX is a registered RespOrg. We manage your toll-free numbers directly in the national database.

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The basics

What is toll-free number service?

Toll-free number service gives a business a phone number — prefix 800, 888, 877, 866, 855, 844, or 833 — that callers dial free of charge. The business pays the per-minute inbound cost instead. A RespOrg reserves the number in the national SMS/800 database and routes inbound calls to your phone system.

SIPNEX is that RespOrg — not a reseller working through one. Reservation, routing, CNAM registration, and STIR/SHAKEN signing happen in-house, which is how a toll-free number goes live within 24 hours instead of a week.

Delivery is a toll-free SIP trunk: the number is routed to your phone system over SIP trunking, with inbound calls and outbound caller ID carried on the same trunk.

Registered RespOrg

SIPNEX manages toll-free numbers directly in the SMS/800 database. No intermediary delays. No third-party RespOrg coordination. Direct carrier provisioning.

All 7 Prefixes

800, 888, 877, 866, 855, 844, and 833. We search all prefixes to find the best available number. Standard and vanity numbers available.

24-Hour Provisioning

Number reserved, routing configured, CNAM registered, and STIR/SHAKEN attestation active within one business day. Carrier-direct speed.

Vanity Number Search

Search available toll-free inventory for letter combinations that spell your business name or service. If the combination is available, standard pricing applies — no premium.

A-Level Attestation

Every toll-free number receives A-level STIR/SHAKEN attestation on outbound calls. Signed with our own SP-KI certificate. Same trust signal as local DIDs.

Inbound + Outbound

Every toll-free DID supports both inbound routing and outbound CID on the same SIP trunk. Use it as your published business line and as outbound caller ID.

SIPNEX vs typical toll-free provider.

SIPNEXTYPICAL PROVIDER
RespOrg statusDirect RespOrgUses third-party RespOrg
Provisioning speed24 hours3–7 business days
STIR/SHAKENA-level (own cert)B-level or none
CNAM registrationIncludedExtra charge
Setup feesNone$10–$50
Porting feesNone$5–$25 per number
Vanity searchDirect SMS/800 searchLimited third-party search
All 7 prefixesYesOften limited selection
Vanity numbers

What is a vanity toll-free number?

A vanity toll-free number spells a word or phrase on the phone keypad — 1-800-FLOWERS translates to 1-800-356-9377. Under the hood it is a standard toll-free number: same routing, same CNAM, same STIR/SHAKEN attestation. The letters are a memorability device for your marketing, nothing more.

How it works: vanity combinations are first-come, first-served in the SMS/800 database. As a registered RespOrg, SIPNEX searches that database directly across all seven prefixes. If your combination is open, we reserve it at standard toll-free pricing — no premium, live within 24 hours.

If it is taken, a number broker may hold it for resale at a one-time price that varies by desirability ($200 to $50,000+). We assist with broker acquisitions — and we will say so when a standard number serves you just as well. On outbound caller ID, recipients see digits, not letters, so a vanity number earns its keep on inbound and offline advertising.

Frequently asked questions.

How quickly can I get a toll-free number?
SIPNEX provisions toll-free numbers within 24 hours. We are a registered RespOrg — we reserve numbers directly in the SMS/800 database without intermediaries. Your number is live for inbound and outbound use within one business day, including CNAM registration and STIR/SHAKEN attestation setup.
What toll-free prefixes are available?
All seven toll-free prefixes: 800, 888, 877, 866, 855, 844, and 833. Availability varies by prefix — 800 numbers have the most limited inventory (most desirable combinations are taken), while 833 numbers have the most availability. We search all prefixes to find the best available number for your needs.
Can I get a vanity toll-free number?
If the vanity combination you want is available in the SMS/800 database, we reserve it at standard toll-free pricing — no acquisition premium. If it is taken, it may be available through a number broker at a one-time purchase price that varies by desirability ($200 to $50,000+ for premium combinations). We can assist with both scenarios.
How much does a toll-free number cost?
Monthly DID fee: $2 to $5 per number. Per-minute inbound charges apply — you pay for incoming minutes because toll-free means free for the caller, not free for the business. No setup fees. No porting fees. See our pricing page for the current rate card.
Can I port my existing toll-free number to SIPNEX?
Yes. Toll-free porting uses the RespOrg transfer process. You authorize SIPNEX as the new RespOrg, we submit the transfer request, and routing switches to our network. Timeline: 5 to 15 business days depending on the current RespOrg's processing speed. Your number remains active during the transfer.
What is a RespOrg?
RespOrg (Responsible Organization) is the entity authorized to manage toll-free number routing in the national SMS/800 database. SIPNEX is a registered RespOrg — we manage toll-free numbers directly without intermediaries. This means faster provisioning, direct routing control, and no middleman delays.
Should I use toll-free or local numbers for outbound calling?
For outbound campaigns, local numbers outperform toll-free in answer rate by 15 to 30 percent. Consumers associate toll-free calls with telemarketing. For inbound (customer service, sales inquiries, published business lines), toll-free is preferred — it signals an established business and eliminates cost barriers for the caller. Most operations use both: toll-free for inbound, local DIDs for outbound.
Do toll-free numbers get STIR/SHAKEN attestation?
Yes. SIPNEX-provisioned toll-free numbers receive A-level STIR/SHAKEN attestation on outbound calls, identical to local DIDs. We sign with our own SP-KI certificate. Toll-free numbers are also usable as outbound CID, though local numbers typically produce better answer rates for outbound campaigns.
Does a vanity toll-free number cost more per month?
No. On SIPNEX the monthly cost is identical to a standard toll-free number — the $2 to $5 DID fee plus per-minute inbound usage, with no recurring premium for the letter combination. The only extra cost is the one-time broker price when the combination you want is already taken; if it is open in the SMS/800 database, we reserve it at standard pricing.

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