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El Sobrante, CA Area Codes
El Sobrante, California (population 15,823) uses area codes 510 and 341.
El Sobrante has no telephone exchange of its own in NANPA records; it is served by the Richmond exchange about 5.6 km away.
Carriers with El Sobrante numbers
63 prefixes are assigned to the Richmond exchange: 22% mobile, 38% VoIP and cable, 40% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Pacific Bell) | 15 |
| Bandwidth | 7 |
| T-Mobile | 6 |
| Lumen (Level 3) | 5 |
| Onvoy (Sinch) | 5 |
| Metropcs | 4 |
| AT&T Mobility | 4 |
| Verizon Wireless | 4 |
Area codes used in El Sobrante
| Area code | Prefixes serving El Sobrante | Main carriers in this code |
|---|---|---|
| 510 | 53 | AT&T (Pacific Bell), AT&T Mobility, T-Mobile |
| 341 | 10 | Fractel, Onvoy (Sinch), AT&T Mobility |
El Sobrante phone number prefixes
Numbers starting with these first six digits were originally assigned to the Richmond exchange.
510-210Bandwidth510-215AT&T (Pacific Bell)510-221Metropcs510-230T-Mobile510-231AT&T (Pacific Bell)510-232AT&T (Pacific Bell)510-233AT&T (Pacific Bell)510-234AT&T (Pacific Bell)510-235AT&T (Pacific Bell)510-236AT&T (Pacific Bell)510-237AT&T (Pacific Bell)510-242AT&T (Pacific Bell)510-253Lumen (Level 3)510-255Bandwidth510-260Comcast (Xfinity)510-307AT&T (Pacific Bell)510-323Verizon Business (MCImetro)510-334AT&T Mobility510-349American Messaging Services510-367AT&T Mobility510-369Onvoy (Sinch)510-374AT&T (Pacific Bell)510-375T-Mobile510-412AT&T (Pacific Bell)510-426Verizon Wireless510-439Onvoy (Sinch)510-447Metropcs510-478Verizon Business (MCImetro)510-609T-Mobile510-619Lumen (Level 3)510-620AT&T (Pacific Bell)510-621Verizon Business (MCImetro)510-660AT&T Mobility510-672Verizon Wireless510-680Lumen (CenturyLink)510-685Verizon Wireless510-730Bandwidth510-734AT&T Mobility510-776Metropcs510-778Comcast (Xfinity)510-806Lumen (Level 3)510-829Metropcs510-831Bandwidth510-837AT&T (Teleport)510-860Lumen (Level 3)510-890T-Mobile510-932T-Mobile510-942AT&T (Teleport)510-965AT&T (Pacific Bell)510-966Onvoy (Sinch)510-970AT&T (Pacific Bell)510-974Lumen (Level 3)510-994Bandwidth341-203Verizon Wireless341-207Bandwidth341-215Bandwidth341-230Onvoy (Sinch)341-242T-Mobile341-247Onvoy (Sinch)341-300Fractel341-388Fractel341-799Fractel341-999Fractel
Nearby cities in area code 510
- Oakland
- Hayward
- Berkeley
- Richmond
- San Leandro
- Alameda
- Castro Valley
- Union City
- San Pablo
- San Lorenzo
- Hercules
- El Cerrito
Questions
- What is the area code for El Sobrante, CA?
- El Sobrante uses 2 area codes: 510 and 341. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is El Sobrante in?
- El Sobrante is in the Pacific time zone.