San Marcos, TX Area Codes
San Marcos, Texas (population 77,830) uses area codes 512 and 737.
Carriers with San Marcos numbers
39 prefixes are assigned to the San Marcos exchange: 38% mobile, 13% VoIP and cable, 49% landline.
| Carrier | Prefixes |
|---|---|
| Brightspeed Of Southern Texas | 11 |
| T-Mobile | 7 |
| Verizon Wireless | 5 |
| AT&T Mobility | 3 |
| Onvoy (Sinch) | 3 |
| Grande Communications Networks | 2 |
| Lumen (CenturyLink) | 1 |
| Lumen (Level 3) | 1 |
Area codes used in San Marcos
| Area code | Prefixes serving San Marcos | Main carriers in this code |
|---|---|---|
| 512 | 26 | AT&T (Southwestern Bell), AT&T Mobility, T-Mobile |
| 737 | 13 | Onvoy (Sinch), T-Mobile, AT&T Mobility |
San Marcos phone number prefixes
Numbers starting with these first six digits were originally assigned to the San Marcos exchange.
512-210Verizon Wireless512-214T-Mobile512-216AT&T Mobility512-245Brightspeed Of Southern Texas512-353Brightspeed Of Southern Texas512-392Brightspeed Of Southern Texas512-393Brightspeed Of Southern Texas512-395Brightspeed Of Southern Texas512-396Brightspeed Of Southern Texas512-408Brightspeed Of Southern Texas512-557Verizon Wireless512-558Brightspeed Of Southern Texas512-618AT&T Mobility512-644T-Mobile512-665T-Mobile512-667Verizon Wireless512-738T-Mobile512-749Verizon Wireless512-753Brightspeed Of Southern Texas512-754Brightspeed Of Southern Texas512-757AT&T Mobility512-781Lumen (CenturyLink)512-787T-Mobile512-805Brightspeed Of Southern Texas512-878Grande Communications Networks512-938Grande Communications Networks737-213Verizon Wireless737-214Onvoy (Sinch)737-221T-Mobile737-266Lumen (Level 3)737-303Skyetel737-315Boost Subscriberco L.L.C.737-335T-Mobile737-344Onvoy (Sinch)737-373Fractel737-387Onvoy (Sinch)737-392Twilio737-422Terra Nova Telecom737-737Usfon
Nearby cities in area code 512
- Austin
- Round Rock
- Georgetown
- Leander
- Cedar Park
- Kyle
- Pflugerville
- Hutto
- Manor
- Brushy Creek
- Lakeway
- Steiner Ranch
Questions
- What is the area code for San Marcos, TX?
- San Marcos uses 2 area codes: 512 and 737. 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 Central time zone.