---
title: "Area code 669: California, United States"
url: "https://lookvalid.com/area-code/669.md"
canonical_url: "https://lookvalid.com/area-code/669"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 669 serves California, United States. Number formats, numbering rules, a live phone validator and the other codes in California."
---

# Area code 669: California, United States

Area code 669 serves California, United States. Number formats, numbering rules, a live phone validator and the other codes in California.

NANPA lists 235 central office codes (prefixes) in use in area code 669, held by 19 holders across 11 rate centers.
T-Mobile USA holds the most prefixes, 45 (19%). 99% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 727 complaints on file for 466 numbers in 669, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 2012-11-20
- Time zone: Pacific (P)
- Assigned overlays: 408 (1959-01-01)
- Prefixes in use: 235
- Pooled prefixes: 233 (99%)
- Rate centers: 11
- Companies holding prefixes: 19
- Assignment dates on file: 2012-11-02 to 2026-06-26 (220 prefixes)
- ZIP codes in its places: 19

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| SNJS WEST | 52 | 22% |
| SNJS NORTH | 35 | 15% |
| SNJS SOUTH | 33 | 14% |
| CAMPBELL | 28 | 12% |
| SUNNYVALE | 26 | 11% |
| SARATOGA | 19 | 8% |
| LOS GATOS | 13 | 6% |
| MORGANHILL | 11 | 5% |
| 3 other rate centers | 18 | 8% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| T-Mobile USA | 45 | 19% |
| Onvoy | 42 | 18% |
| Fractel | 30 | 13% |
| New Cingular Wireless PCS | 21 | 9% |
| Verizon Wireless | 18 | 8% |
| Bandwidth.com CLEC | 15 | 6% |
| 13 other carriers | 64 | 27% |

A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company.

## History

- 1959-01-01: Area code 408, named as the parent of 669 in the NANPA report, was in service.
- 2012-11-20: Area code 669 went into service.

## Nearest area codes

The area codes closest to 669, measured between the centers of the ZIP code places they serve, are 650 (about 25 miles), 831 (about 40 miles), 341 (about 43 miles), 510 (about 43 miles) and 925 (about 44 miles).

## ZIP codes

19 ZIP codes fall in places that have a rate center in this area code. The places with the most are Sunnyvale, CA (5 ZIP codes), Los Gatos, CA (4 ZIP codes) and Campbell, CA (3 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes.

## Complaints on file

727 complaints for 466 numbers. Numbers whose latest complaint falls in each year:

- 2023: 43
- 2024: 22
- 2025: 31

## Questions

### Where is area code 669?

NANPA assigns area code 669 to California, United States.

### In which state does area code 669 sit?

California. 669 is one of 41 area codes the NANPA table assigns to the state.

### Which places does area code 669 cover?

The places with the most ZIP codes among the rate centers in 669 are Sunnyvale, CA, Los Gatos, CA and Campbell, CA. The rate center list on this page shows all of them.

### Who owns area code 669?

NANPA assigns area codes. Within 669, T-Mobile USA holds the most prefixes, 45 prefixes or 19%.

### Which time zone does 669 use?

The NANPA NPA report lists the time zone for 669 as Pacific (P).

### What year did 669 enter service?

The NANPA NPA report gives an in-service date of 2012-11-20, so 669 has been in use since 2012.

### Does area code 669 have an overlay?

Yes. 408 (in service 1959-01-01) shares the same area with 669, so numbers from all of them are local to each other.

### Which area codes are nearest to 669?

The area codes closest to 669, measured between the centers of the ZIP code places they serve, are 650 (about 25 miles), 831 (about 40 miles), 341 (about 43 miles), 510 (about 43 miles) and 925 (about 44 miles).

### How many prefixes does area code 669 have?

NANPA's report dated 2026-10-17 lists 235 prefixes in service in 669, spread over 11 rate centers and 19 holders.

### Are there complaints about 669 numbers?

The FCC data on file has 727 complaints for 466 numbers in 669. They are unverified consumer reports. A number with no complaints on file is not proven safe.

Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).