627 Area Code: Does It Exist?
Updated: November 2026. Area code data: NANPA assignments via Simple Wikipedia and areacode.fyi, checked November 2026.
No — 627 is not an active area code. It was planned in 1999, canceled in 2000, and never entered service. Any call that appears to come from 627 is almost certainly spoofed.
What happened to area code 627?
627 was planned as part of a split of area code 707 in northwestern California — it would have served the heart of the 707 region, including Napa and Sonoma counties and parts of Marin and Mendocino counties. The California Public Utilities Commission canceled the split on July 27, 2000 (Decision D.00-07-039) after number pooling slowed the rate at which 707 was using up prefixes. The code never went into service, and NANPA lists it as not in use and available for geographic assignment.
What serves the 707 area now?
707 later received the 369 overlay, which serves the same northern California area. If you need a number there today, you will get 707 or 369 — never 627.
Why am I seeing calls from 627?
Because caller ID can be faked. 627 is a non-assigned code, so by definition no legitimate call can originate from it. A 627 number on your screen is a spoofing attempt.
What should I do?
- Do not call the number back and do not share passwords, verification codes or payment details.
- Report scam calls at reportfraud.ftc.gov, forward spam texts to 7726, and register on the National Do Not Call Registry at donotcall.gov.
Related: 707 area code (Northern California) · 278 — another code that doesn't exist · New area codes hub
FAQs
Is 627 a real area code?
No. 627 was planned in 1999 for part of California's 707 region, but the split was canceled in 2000 and the code never entered service.
Why was 627 canceled?
The California Public Utilities Commission canceled the split on July 27, 2000, after number pooling slowed the rate at which 707 was using up prefixes.
Can I get a 627 phone number?
No. No 627 numbers exist, so no carrier can issue one.
What area code serves that part of California now?
707, with the 369 overlay serving the same area.
I got a call from 627 — what should I do?
Treat it as spoofed. Do not call back. Report it at reportfraud.ftc.gov and forward any spam text to 7726.
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