Area code
Area code 310 — Santa Monica & Beverly Hills, CA
California · in service since November 2, 1991
Area code 310 covers Santa Monica & Beverly Hills, CA. It is an overlay: 424 serves the same area, so neighbors can have different area codes.
Overlay, same area: 424
Local time in Santa Monica & Beverly Hills
Spam reports from Sep 23 – Oct 22, 2026
Average #236 of 461 codes
377 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zonePacific Time
- Local calls1 + 10 digits
- Prefixes800 assigned
- Runs out~1Q 2043
- Unwanted call?Block & report
Spam call reports about 310 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 23 |
| Sep 14 | 105 |
| Sep 21 | 83 |
| Sep 28 | 84 |
| Oct 5 | 82 |
| Oct 12 | 83 |
| Oct 19 (4 days) | 68 |
Compared with all codes
- Robocalls
- 58%all codes 75%
- Callers with the same code
- 62%all codes 35%
- Rank by complaints
- #236of 461 · middle half
- FCC complaints, Oct 2025 – Sep 2026
- 25710 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Dropped call or no message | 141 27% | |
| Reducing your debt (credit cards, mortgage, student loans) | 47 9% | |
| Calls pretending to be government, businesses, or family and friends | 39 7% | |
| Medical & prescriptions | 23 4% | |
| Home improvement & cleaning | 9 2% | |
| Energy, solar, & utilities | 6 1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| California | 419 79% | |
| Virginia | 18 3% | |
| Ohio | 10 2% | |
| Washington | 9 2% | |
| Arizona | 7 1% |
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 310 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| CMTN GRDN | — | — | 124 |
| BEVERLYHLS | Beverly Hills | Los Angeles County | 113 |
| SNMN SNMN | Santa Monica | Los Angeles County | 84 |
| W ANGELES | Los Angeles | Los Angeles County | 69 |
| SNMN MRVS | — | — | 54 |
| INGLEWOOD | Inglewood | Los Angeles County | 49 |
| CMTN CMTN | Compton | Los Angeles County | 44 |
| REDONDO | — | — | 44 |
| EL SEGUNDO | El Segundo | Los Angeles County | 39 |
| CULVERCITY | Culver City | Los Angeles County | 36 |
Plus 8 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
- August 31, 1990
- Created from
- 213
- Local dialing
- 1 + 10 digits (NANPA: 1+10D)
- NANPA planning letters
- PL-347, PL-250
Source: NANPA, NPA database of Oct 24, 2026.
Is 310 running out of numbers?
Previous forecast (October 2025): 2040, moved later by 3 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 310 prefixes
The five largest of 26 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Pacific Bell | 250 31% | |
| Frontier California Inc. | 137 17% | |
| New Cingular Wireless PCS, LLC | 68 8% | |
| T-Mobile USA, Inc. | 58 7% | |
| Verizon Wireless | 56 7% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 310
What area code is 310?
A California area code, in service since November 2, 1991.
Where is 310 area code, and what time zone is it in?
Santa Monica & Beverly Hills, CA; Pacific Time.
Why am I getting spam calls from 310?
377 FTC complaints from Sep 23 – Oct 22, 2026, most often about dropped calls or no message (not verified by the FTC; caller ID can be spoofed).
Will 310 get a new area code?
NANPA forecasts exhaust in 1Q 2043; no relief planning listed.