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San Marcos, CA Area Codes
San Marcos, California (population 94,908) uses area codes 760 and 442.
Carriers with San Marcos numbers
31 prefixes are assigned to the San Marcos exchange: 16% mobile, 35% VoIP and cable, 48% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Pacific Bell) | 10 |
| Tpx Communications | 3 |
| Verizon Business (MCImetro) | 3 |
| Lumen (Level 3) | 3 |
| AT&T (Teleport) | 2 |
| T-Mobile | 2 |
| Verizon Wireless | 2 |
| 33 Wireless | 1 |
Area codes used in San Marcos
| Area code | Prefixes serving San Marcos | Main carriers in this code |
|---|---|---|
| 760 | 25 | Frontier, AT&T (Pacific Bell), Lumen (Level 3) |
| 442 | 6 | AT&T Mobility, T-Mobile, Onvoy (Sinch) |
San Marcos phone number prefixes
Numbers starting with these first six digits were originally assigned to the San Marcos exchange.
760-20433 Wireless760-290Tpx Communications760-304AT&T (Teleport)760-410Tpx Communications760-471AT&T (Pacific Bell)760-481Paetec Itel760-510AT&T (Pacific Bell)760-539Onvoy (Sinch)760-566Verizon Business (MCImetro)760-571Lumen (Level 3)760-591AT&T (Pacific Bell)760-593AT&T (Pacific Bell)760-621Lumen (Level 3)760-653Lumen (Level 3)760-661North County Communication Corporation760-682Verizon Business (MCImetro)760-736AT&T (Pacific Bell)760-744AT&T (Pacific Bell)760-750AT&T (Pacific Bell)760-752AT&T (Pacific Bell)760-759Tpx Communications760-761AT&T (Pacific Bell)760-798Comcast (Xfinity)760-891AT&T (Pacific Bell)760-916Verizon Business (MCImetro)442-385AT&T (Teleport)442-416T-Mobile442-472Verizon Wireless442-503Verizon Wireless442-515Telnyx442-655T-Mobile
Nearby cities in area code 760
- Oceanside
- Escondido
- Victorville
- Carlsbad
- Hesperia
- Vista
- Indio
- Apple Valley
- Encinitas
- Palm Desert
- Cathedral City
- Coachella
Questions
- What is the area code for San Marcos, CA?
- San Marcos uses 2 area codes: 760 and 442. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is San Marcos in?
- San Marcos is in the Pacific time zone.