Area code
Area code 408 — San Jose, CA
California · in service since 1959
Area code 408 covers San Jose, CA. It is an overlay: 669 serves the same area, so neighbors can have different area codes.
Overlay, same area: 669
Local time in San Jose
Spam reports from Sep 23 – Oct 22, 2026
Average #158 of 461 codes
574 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zonePacific Time
- Local calls1 + 10 digits
- Prefixes800 assigned
- Runs out~1Q 2056
- Unwanted call?Block & report
Spam call reports about 408 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 24 |
| Sep 14 | 116 |
| Sep 21 | 102 |
| Sep 28 | 112 |
| Oct 5 | 139 |
| Oct 12 | 140 |
| Oct 19 (4 days) | 121 |
Compared with all codes
- Robocalls
- 66%all codes 75%
- Callers with the same code
- 42%all codes 35%
- Rank by complaints
- #158of 461 · middle half
- FCC complaints, Oct 2025 – Sep 2026
- 895 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 129 17% | |
| Dropped call or no message | 102 14% | |
| Calls pretending to be government, businesses, or family and friends | 67 9% | |
| Energy, solar, & utilities | 27 4% | |
| Home improvement & cleaning | 16 2% | |
| Medical & prescriptions | 14 2% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| California | 506 67% | |
| Florida | 24 3% | |
| Texas | 22 3% | |
| Washington | 19 3% | |
| Arizona | 15 2% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 408 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| SNJS WEST | San Jose | Santa Clara County | 321 |
| SNJS NORTH | San Jose | Santa Clara County | 139 |
| SUNNYVALE | Sunnyvale | Santa Clara County | 96 |
| SNJS SOUTH | San Jose | Santa Clara County | 84 |
| CAMPBELL | Campbell | Santa Clara County | 43 |
| LOS GATOS | Los Gatos | Santa Clara County | 24 |
| MORGANHILL | Morgan Hill | Santa Clara County | 19 |
| GILROY | Gilroy | Santa Clara County | 16 |
| SAN MARTIN | San Martin | Santa Clara County | 15 |
| SARATOGA | Saratoga | Santa Clara County | 15 |
Plus 3 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
NANPA record
- Location
- California
- Assigned by NANPA
- 1959
- Created from
- 415
- Local dialing
- 1 + 10 digits (NANPA: 1+10D)
- NANPA planning letters
- PL-430, PL-206, PL-149
Source: NANPA, NPA database of Oct 24, 2026.
Is 408 running out of numbers?
Previous forecast (October 2025): 2055, moved later by 1 year.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 408 prefixes
The five largest of 29 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Pacific Bell | 328 41% | |
| New Cingular Wireless PCS, LLC | 70 9% | |
| Verizon Wireless | 65 8% | |
| Mcimetro Access Transmission Services LLC | 48 6% | |
| T-Mobile USA, Inc. | 42 5% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 408
What area code is 408?
A California area code, in service since 1959.
Where is 408 area code, and what time zone is it in?
San Jose, CA; Pacific Time.
Why am I getting spam calls from 408?
574 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 408 get a new area code?
NANPA forecasts exhaust in 1Q 2056; no relief planning listed.