---
title: "Area code 972: Texas, United States"
url: "https://lookvalid.com/area-code/972.md"
canonical_url: "https://lookvalid.com/area-code/972"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 972 serves Texas, United States. Number formats, numbering rules, a live phone validator and the other codes in Texas."
---

# Area code 972: Texas, United States

Area code 972 serves Texas, United States. Number formats, numbering rules, a live phone validator and the other codes in Texas.

NANPA lists 785 central office codes (prefixes) in use in area code 972, held by 32 holders across 43 rate centers.
Southwestern Bell holds the most prefixes, 306 (39%). 56% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 4,377 complaints on file for 3,207 numbers in 972, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1996-09-14
- Time zone: Central (C)
- Assigned overlays: 214 (1947-01-01), 469 (1999-07-01), 945 (2021-01-15)
- Prefixes in use: 785
- Pooled prefixes: 442 (56%)
- Rate centers: 43
- Companies holding prefixes: 32
- Assignment dates on file: 2001-04-19 to 2025-12-29 (73 prefixes)
- ZIP codes in its places: 181

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| DALLAS | 247 | 31% |
| GRANDPRARI | 134 | 17% |
| PLANO | 92 | 12% |
| IRVING | 90 | 11% |
| LEWISVILLE | 30 | 4% |
| CARROLLTON | 28 | 4% |
| MCKINNEY | 22 | 3% |
| FRISCO | 21 | 3% |
| 35 other rate centers | 121 | 15% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Southwestern Bell | 306 | 39% |
| Frontier Comm Of Texas | 183 | 23% |
| New Cingular Wireless PCS | 58 | 7% |
| Mcimetro Access Transmission Services | 55 | 7% |
| Onvoy | 24 | 3% |
| Spok | 20 | 3% |
| 26 other carriers | 139 | 18% |

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

- 1947-01-01: Area code 214, named as the parent of 972 in the NANPA report, was in service.
- 1996-09-14: Area code 972 went into service.

## Nearest area codes

The area codes closest to 972, measured between the centers of the ZIP code places they serve, are 817 (about 30 miles), 682 (about 31 miles), 430 (about 79 miles), 903 (about 79 miles) and 254 (about 92 miles).

## ZIP codes

181 ZIP codes fall in places that have a rate center in this area code. The places with the most are Dallas, TX (105 ZIP codes), Irving, TX (12 ZIP codes) and Plano, TX (9 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

4,377 complaints for 3,207 numbers. Numbers whose latest complaint falls in each year:

- 2023: 221
- 2024: 128
- 2025: 140

## Questions

### Where is area code 972?

NANPA assigns area code 972 to Texas, United States.

### In which state does area code 972 sit?

Texas. 972 is one of 29 area codes the NANPA table assigns to the state.

### Which places does area code 972 cover?

The places with the most ZIP codes among the rate centers in 972 are Dallas, TX, Irving, TX and Plano, TX. The rate center list on this page shows all of them.

### Who owns area code 972?

NANPA assigns area codes. Within 972, Southwestern Bell holds the most prefixes, 306 prefixes or 39%.

### Which time zone does 972 use?

The NANPA NPA report lists the time zone for 972 as Central (C).

### What year did 972 enter service?

The NANPA NPA report gives an in-service date of 1996-09-14, so 972 has been in use since 1996.

### Does area code 972 have an overlay?

Yes. 214 (in service 1947-01-01), 469 (in service 1999-07-01) and 945 (in service 2021-01-15) share the same area with 972, so numbers from all of them are local to each other.

### Which area codes are nearest to 972?

The area codes closest to 972, measured between the centers of the ZIP code places they serve, are 817 (about 30 miles), 682 (about 31 miles), 430 (about 79 miles), 903 (about 79 miles) and 254 (about 92 miles).

### How many prefixes does area code 972 have?

NANPA's report dated 2026-10-17 lists 785 prefixes in service in 972, spread over 43 rate centers and 32 holders.

### Are there complaints about 972 numbers?

The FCC data on file has 4,377 complaints for 3,207 numbers in 972. 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).