---
title: "Area code 956: Texas, United States"
url: "https://lookvalid.com/area-code/956.md"
canonical_url: "https://lookvalid.com/area-code/956"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 956 serves Texas, United States. Number formats, numbering rules, a live phone validator and the other codes in Texas."
---

# Area code 956: Texas, United States

Area code 956 serves Texas, United States. Number formats, numbering rules, a live phone validator and the other codes in Texas.

NANPA lists 731 central office codes (prefixes) in use in area code 956, held by 47 holders across 35 rate centers.
Southwestern Bell holds the most prefixes, 145 (20%). 81% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 1,272 complaints on file for 1,071 numbers in 956, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1997-07-07
- Time zone: Central (C)
- Prefixes in use: 731
- Pooled prefixes: 593 (81%)
- Rate centers: 35
- Companies holding prefixes: 47
- Assignment dates on file: 2001-02-02 to 2026-08-06 (473 prefixes)
- ZIP codes in its places: 44

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| LAREDO | 120 | 16% |
| BROWNSVL | 103 | 14% |
| MCALLEN | 103 | 14% |
| HARLINGEN | 86 | 12% |
| EDINBURG | 53 | 7% |
| MISSION | 43 | 6% |
| WESLACO | 36 | 5% |
| PHARR | 33 | 5% |
| 27 other rate centers | 154 | 21% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Southwestern Bell | 145 | 20% |
| Stpcs Joint Venture | 143 | 20% |
| New Cingular Wireless PCS | 128 | 18% |
| Verizon Wireless | 44 | 6% |
| Onvoy | 42 | 6% |
| Metropcs | 26 | 4% |
| 41 other carriers | 203 | 28% |

A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company.

## History

- 1992-11-01: Area code 210, named as the parent of 956 in the NANPA report, was in service.
- 1997-07-07: Area code 956 went into service.

## Nearest area codes

The area codes closest to 956, measured between the centers of the ZIP code places they serve, are 361 (about 132 miles), 830 (about 201 miles), 210 (about 203 miles), 726 (about 203 miles) and 979 (about 263 miles).

## ZIP codes

44 ZIP codes fall in places that have a rate center in this area code. The places with the most are Laredo, TX (7 ZIP codes), Mcallen, TX (5 ZIP codes) and Edinburg, TX (4 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes.

## Complaints on file

1,272 complaints for 1,071 numbers. Numbers whose latest complaint falls in each year:

- 2023: 47
- 2024: 47
- 2025: 47

## Questions

### Where is area code 956?

NANPA assigns area code 956 to Texas, United States.

### In which state does area code 956 sit?

Texas. 956 is one of 29 area codes the NANPA table assigns to the state.

### Which places does area code 956 cover?

The places with the most ZIP codes among the rate centers in 956 are Laredo, TX, Mcallen, TX and Edinburg, TX. The rate center list on this page shows all of them.

### Who owns area code 956?

NANPA assigns area codes. Within 956, Southwestern Bell holds the most prefixes, 145 prefixes or 20%.

### Which time zone does 956 use?

The NANPA NPA report lists the time zone for 956 as Central (C).

### What year did 956 enter service?

The NANPA NPA report gives an in-service date of 1997-07-07, so 956 has been in use since 1997.

### Does area code 956 have an overlay?

The NANPA NPA report lists no other area code in an overlay with 956.

### Which area codes are nearest to 956?

The area codes closest to 956, measured between the centers of the ZIP code places they serve, are 361 (about 132 miles), 830 (about 201 miles), 210 (about 203 miles), 726 (about 203 miles) and 979 (about 263 miles).

### How many prefixes does area code 956 have?

NANPA's report dated 2026-10-17 lists 731 prefixes in service in 956, spread over 35 rate centers and 47 holders.

### Are there complaints about 956 numbers?

The FCC data on file has 1,272 complaints for 1,071 numbers in 956. They are unverified consumer reports. A number with no complaints on file is not proven safe.

Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).