Phone numbers in Harlingen, Texas
Harlingen has 86 phone prefixes in area code 956.
Biggest holders: Stpcs Joint Venture, AT&T (local phone), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 44%
- Local phone company 28%
- Internet / business phone carrier 22%
- Paging service 1%
- Phone company 5%
Every prefix in Harlingen
Search the first six digits of a number in this list. If it's here, the number started in Harlingen with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 956-200 | AT&T Mobility | Mobile carrier | 2007 |
| 956-202 | AT&T Mobility | Mobile carrier | – |
| 956-216 | Smartcom Telephone | Phone company | 2003 |
| 956-226 | Stpcs Joint Venture | Mobile carrier | – |
| 956-228 | AT&T (local phone) | Local phone company | 2001 |
| 956-230 | Charter / Spectrum | Internet / business phone carrier | 2002 |
| 956-244 | AT&T Mobility | Mobile carrier | – |
| 956-245 | AT&T Mobility | Mobile carrier | – |
| 956-264 | MCImetro (Verizon Business) | Internet / business phone carrier | 2003 |
| 956-275 | Onvoy | Internet / business phone carrier | 2017 |
| 956-281 | AT&T Mobility | Mobile carrier | – |
| 956-291 | AT&T (local phone) | Local phone company | – |
| 956-300 | Onvoy | Internet / business phone carrier | – |
| 956-320 | Bandwidth | Internet / business phone carrier | 2008 |
| 956-335 | Stpcs Joint Venture | Mobile carrier | – |
| 956-341 | Stpcs Joint Venture | Mobile carrier | – |
| 956-343 | Stpcs Joint Venture | Mobile carrier | – |
| 956-345 | Stpcs Joint Venture | Mobile carrier | – |
| 956-357 | Verizon Wireless | Mobile carrier | – |
| 956-364 | AT&T (local phone) | Local phone company | – |
| 956-365 | AT&T (local phone) | Local phone company | – |
| 956-366 | AT&T (local phone) | Local phone company | – |
| 956-367 | AT&T Mobility | Mobile carrier | – |
| 956-368 | Onvoy | Internet / business phone carrier | – |
| 956-389 | AT&T (local phone) | Local phone company | – |
| 956-390 | AT&T (local phone) | Local phone company | – |
| 956-392 | AT&T (local phone) | Local phone company | – |
| 956-406 | Bandwidth | Internet / business phone carrier | 2013 |
| 956-412 | AT&T (local phone) | Local phone company | – |
| 956-421 | AT&T (local phone) | Local phone company | – |
| 956-423 | AT&T (local phone) | Local phone company | – |
| 956-425 | AT&T (local phone) | Local phone company | – |
| 956-427 | AT&T (local phone) | Local phone company | – |
| 956-428 | AT&T (local phone) | Local phone company | – |
| 956-430 | AT&T (local phone) | Local phone company | – |
| 956-440 | AT&T (local phone) | Local phone company | – |
| 956-444 | AT&T (local phone) | Local phone company | – |
| 956-453 | Stpcs Joint Venture | Mobile carrier | – |
| 956-454 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 956-490 | Stpcs Joint Venture | Mobile carrier | – |
| 956-491 | Stpcs Joint Venture | Mobile carrier | – |
| 956-492 | Wavenation | Phone company | – |
| 956-493 | Stpcs Joint Venture | Mobile carrier | – |
| 956-494 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 956-495 | Stpcs Joint Venture | Mobile carrier | – |
| 956-496 | Charter / Spectrum | Internet / business phone carrier | – |
| 956-497 | Stpcs Joint Venture | Mobile carrier | – |
| 956-498 | Stpcs Joint Venture | Mobile carrier | – |
| 956-499 | Stpcs Joint Venture | Mobile carrier | – |
| 956-501 | Stpcs Joint Venture | Mobile carrier | – |
| 956-506 | Telnyx | Internet / business phone carrier | 2019 |
| 956-507 | Foremost Telecommunications | Phone company | 2005 |
| 956-535 | Stpcs Joint Venture | Mobile carrier | – |
| 956-536 | Stpcs Joint Venture | Mobile carrier | 2001 |
| 956-553 | Onvoy | Internet / business phone carrier | – |
| 956-564 | Verizon Wireless | Mobile carrier | 2002 |
| 956-571 | Stpcs Joint Venture | Mobile carrier | – |
| 956-577 | AT&T (local phone) | Local phone company | 2002 |
| 956-610 | AT&T (local phone) | Local phone company | 2001 |
| 956-622 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 956-654 | Csc Wireless | Mobile carrier | 2020 |
| 956-659 | Stpcs Joint Venture | Mobile carrier | – |
| 956-660 | CenturyLink / Lumen | Local phone company | 2015 |
| 956-669 | Peerless Network Of Texas | Internet / business phone carrier | 2021 |
| 956-677 | Fractel | Internet / business phone carrier | 2019 |
| 956-706 | Stpcs Joint Venture | Mobile carrier | – |
| 956-710 | Onvoy | Internet / business phone carrier | 2019 |
| 956-730 | AT&T (local phone) | Local phone company | – |
| 956-734 | AT&T (local phone) | Local phone company | – |
| 956-742 | Stpcs Joint Venture | Mobile carrier | 2005 |
| 956-752 | AT&T (local phone) | Local phone company | – |
| 956-760 | AT&T (local phone) | Local phone company | – |
| 956-767 | Spok | Paging service | 2001 |
| 956-778 | Stpcs Joint Venture | Mobile carrier | – |
| 956-785 | Leap Telecom | Phone company | 2024 |
| 956-792 | Stpcs Joint Venture | Mobile carrier | – |
| 956-793 | Stpcs Joint Venture | Mobile carrier | – |
| 956-808 | Terra Nova Telecom | Internet / business phone carrier | 2022 |
| 956-809 | Hd Carrier | Internet / business phone carrier | 2023 |
| 956-873 | AT&T Mobility | Mobile carrier | – |
| 956-880 | Skyetel | Internet / business phone carrier | 2021 |
| 956-893 | Verizon Wireless | Mobile carrier | 2001 |
| 956-895 | Twilio | Internet / business phone carrier | 2022 |
| 956-910 | Nuso | Internet / business phone carrier | 2020 |
| 956-970 | Stpcs Joint Venture | Mobile carrier | 2005 |
| 956-990 | AT&T Mobility | Mobile carrier | 2008 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.