California phone numbers, every metro from one carrier.
Get a local California number — San Francisco 415, San Jose 408, Sacramento 916, San Diego 619, or any of the state's 41 active area codes — out of carrier-held NANPA inventory. Most orders are live within the day, CNAM filed and each outbound call signed at A-level STIR/SHAKEN. Inventory shifts by rate center, so tell us the code and we'll confirm it before the day is out.
Forty-one California codes, market by market.
| METRO | AREA CODES | COVERAGE |
|---|---|---|
| San Francisco | 415 · 628 | San Francisco and Marin County — 415 is an original 1947 code; 628 overlaid it in 2015. See the 415 area code guide. |
| San Jose | 408 · 669 | San Jose, Santa Clara, Cupertino — 669 overlaid 408 in 2012. See the 408 area code guide. |
| East Bay | 510 · 341 | Oakland, Berkeley, Fremont — 341 overlaid 510 in 2019. See the 510 area code guide. |
| Bay Area regional | 650 · 925 · 707 · 369 | The Peninsula (650), the inland East Bay (925), and the North Bay from Napa to Eureka (707) — 369 overlaid 707 in 2023. |
| Sacramento | 916 · 279 | Sacramento, Elk Grove, Roseville — 279 overlaid 916 in 2018. See the 916 area code guide. |
| Central Valley | 209 · 350 · 559 · 357 | Stockton, Modesto, and Merced on 209, overlaid by 350 in 2022; Fresno and Visalia on 559, where 357 — in service March 2025 — is California's newest overlay. |
| Central Coast | 805 · 820 · 831 | Santa Barbara, Ventura, and San Luis Obispo on 805, overlaid by 820 in 2018; Monterey, Santa Cruz, and Salinas on 831. See the 805 area code guide. |
| Los Angeles | 213 · 310 · 818 … | Nine codes covering one basin, from downtown's 213/323/738 to the Valley's 818/747 — mapped in full on the dedicated See the Los Angeles numbers page. |
| Kern & Santa Clarita | 661 | Bakersfield, Santa Clarita, Palmdale, and Lancaster — split from 805 in 1999. |
| Orange County | 714 · 657 · 949 | Anaheim and Santa Ana on 714, overlaid by 657 in 2008; Irvine and Newport Beach on 949. See the 949 area code guide. |
| Inland Empire | 909 · 840 · 951 | San Bernardino and Ontario on 909, overlaid by 840 in 2021; Riverside, Corona, and Temecula on 951. See the 951 area code guide. |
| San Diego | 619 · 858 · 760 · 442 | San Diego and Chula Vista on 619, the north of the city on 858; Oceanside, Escondido, and the desert on 760, overlaid by 442 in 2009. See the 619 area code guide. |
| Far North | 530 · 837 | Redding, Chico, Davis, and the Tahoe side of the Sierra — 837 overlaid 530 in January 2025. |
Forty-one codes, and NANPA keeps stacking more as California markets run dry — 357 over Fresno in March 2025, 837 over the far north in January 2025, and 738 over central Los Angeles in November 2024 are the newest three. Double-check the live list before a campaign gets built around one code, and treat each overlay as the same territory wearing newer digits: identical rating, identical reach.
What's included with every California DID.
Every California metro, one carrier
Eureka to the border, one NANPA-allocated pool covers the whole state — you buy from the carrier holding the numbers, not a reseller renting them upstream.
Same-day provisioning for most orders
Most California orders go from request to ringing inside one business day. Very large orders spanning many rate centers can run longer.
CNAM registration included
Provisioning includes filing your 15-character business name with the CNAM database at no charge; once the 24-to-72-hour propagation completes, your calls show a name rather than an unlabeled number.
A-level STIR/SHAKEN attestation
Each California DID sits in our STIR/SHAKEN database and gets signed under SIPNEX's own SP-KI certificate — A-level on every call, with no intermediary to dilute it.
Carrier-direct, not an app subscription
Phone apps bundle numbers into seat licenses you pay for indefinitely. Here the DID itself is provisioned to you and runs on any SIP platform you choose.
Inbound and outbound, one number
The same DID terminates inbound calls and fronts your outbound caller ID — one trunk, no second number class, no add-ons involved.
One state, a dozen local identities.
Forty-one codes across a dozen distinct markets make California the clearest case in the country for local presence dialing. A 415 dialing San Francisco gets treated as a neighbor; the same pitch from a foreign code goes to voicemail. Give each target code its own small pool of DIDs and rotate through it so no number carries the whole campaign's volume — the map above stops being trivia and starts driving answer rates.
Every pool draws on the same carrier-held stock, with CNAM filed and A-level signing on each number. How big to build a pool, how fast to rotate it, and which compliance lines are bright red — all of it is laid out in our local presence dialing guide.
Move your California numbers over. Nothing goes dark.
Send the LOA
One Letter of Authorization, one recent bill — that is the full document set for bringing California numbers across.
We submit and schedule
SIPNEX handles the filing and locks the Firm Order Commitment with the losing carrier; a standard California port completes within 7 to 14 business days.
Dial on new DIDs meanwhile
Order fresh California DIDs alongside the port — most activate same day — and keep dialing while the legacy numbers make their way over.
Cut over, keep the number
When the FOC date hits, your number lands routed, CNAM-registered, and STIR/SHAKEN-listed — everything pre-built. US ports carry no fee.
How California numbers get put to work.
Statewide local presence pools
San Francisco hears from a 415, Sacramento from a 916, San Diego from a 619 — matching the display to the market beats showing up as a stranger's code. See local presence dialing guide.
Numbers that measure campaigns
Attach a dedicated California DID to each ad channel and read your marketing results straight off the call logs. See call tracking service.
Expanding into California
Standing up a Bay Area desk or a San Diego branch? Publish a local number on the site and in ads while the office is still an idea. See DID numbers service.
Call centers dialing California
Assemble caller ID pools in the codes your lead lists actually contain, rotate them to keep reputation clean, and run everything under A-level signing. See VICIdial carrier.
Straight answers on California numbers.
How do I get a California phone number for my business?
How many area codes does California have?
Which California area code should I choose for the Bay Area?
Can I get a California phone number without an office in California?
Do I lose my California number when I port to SIPNEX?
Are legacy California codes like 415 and 619 still available?
Local numbers in other markets
Boston phone numbers · Chicago phone numbers · Florida phone numbers · Los Angeles phone numbers · New York phone numbers · Texas phone numbers
From order to California dial tone in a day.
Area code, quantity, destination — that's the whole order form. SIPNEX provisions from carrier-held inventory with CNAM filed and A-level signing enabled, most orders inside a business day, on whatever SIP platform you run. We confirm rate-center availability before you spend a dollar.