Area code 626 – California
626 has served California since 1997, split from 818. 737 of its 786 number blocks are allocated – about 94% full. No carrier dominates: AT&T 30.5%, Other CLEC / VoIP 16.3%, T-Mobile 14.4%. NANPA has relief planning under way for this code, which means another overlay is coming. 919 FTC complaints named a 626 caller ID in the 33 days to 30 October 2026, putting it 56th of 422 codes with five or more complaints.
- State
- California
- In service since
- 1997
- Time zone
- Pacific
- Shares area with
- No overlay
Who holds 626 number blocks
Share of the 737 assigned NXX blocks (93.8% of the 786 possible), across 38 carriers. This is share of number blocks, not of subscribers.
- AT&T30.5%
- T-Mobile16.6%
- Frontier10.2%
- Verizon9.6%
- Other CLEC / VoIP8.4%
- Onvoy6.1%
- Lumen5.6%
- TPx5.3%
- Bandwidth1.9%
- Charter1.6%
- Windstream1.5%
- Peerless1.1%
- Spok0.9%
- American Messaging0.5%
- VoIP Innovations0.1%
Spam complaints naming 626
FTC Do Not Call complaints where the caller ID was a 626 number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are frequently spoofed, so these are complaints about the code, not calls proven to originate in it.
Rate centers in 626
NANPA allocates number blocks to rate centers and records their names abbreviated to ten characters, so these are NANPA's codes rather than place names – CHAMPAURBN is Champaign-Urbana, NWYRCYZN01 is a New York City zone. We show them unchanged instead of guessing at the full names. Showing the largest 5 of 10.
Timeline
- 1997 626 goes into service, split from or overlaid on 818.
- Announced NANPA records relief planning in progress: another overlay is being prepared.
More about 626
Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.
Frequently asked about 626
What state is area code 626?
California.
Is a call from 626 a scam?
Not by itself. 626 drew 919 FTC complaints in the 33 days to 30 October 2026, 56th of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number. The most reported category here is “Other”.
Which carrier owns 626 numbers?
AT&T holds the largest share of assigned number blocks at 30.5%. The rest is spread across 3 other carriers. This is share of number blocks, not of subscribers – people keep their numbers when they switch carriers.
Do I need to dial 10 digits in 626?
NANPA records the local dialing plan for 626 as “1+10D”.
Is a new area code coming to the 626 area?
Yes. NANPA lists relief planning as in progress for this code, which means a new overlay is being prepared. The new code has not been published yet.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 25 daily files 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
- NANPA – NPA relief planning letters, retrieved Nov 1, 2026
NANPA dialing note for this code: “1+10D”. Reviewed by the data desk. Spotted an error? Request a correction.