North American Numbers Source-cited · ownership disclosed
Area code
972
In service
United States · since 1996

Dallas (overlay)

Originally the 1996 code for the Dallas suburbs outside Dallas County; became a full regional overlay in 1999. Now part of the 214/469/972/945 complex.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Dallas (overlay)
Type
geographic
Status
in service
In service since
1996
Projected exhaust
2035 Q3

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 972 is

Dallas and the eastern Dallas-Fort Worth Metroplex (same footprint as 214/469/945).

Communities served wholly or partly by 972:

PlanoGarlandIrvingMesquiteRichardsonCarrolltonGrand PrairieDallas

Representative; shares the 100+ city list of the Dallas-side complex.

B · Relationships

How it relates to other codes

The codes 972 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Split from · 1996 214 Dallas 972 split off from 214 (territory outside Dallas and Dallas County) in 1996.
Overlay · 1999 214 Dallas 972 converted to a full regional overlay alongside 214 on July 1, 1999.
Overlay · 1999 469 Dallas (overlay) Co-overlay of the same region.
Overlay · 2021 945 Dallas (overlay) Co-overlay of the same region (added 2021).
What's changing. Active overlay complex (214/469/972/945). Mandatory 10-digit dialing.
C · History

How 972 got here

1996
Created as a split of 214 for territory outside Dallas/Dallas County.
Source: Wikipedia (Area codes 214, 469, 972, and 945)
1999-07-01
Converted to a full overlay covering the entire region, alongside 214 and the new 469.
Source: Wikipedia (Area codes 214, 469, 972, and 945)
D · Capacity

How full it is

Prefixes assigned
800
Prefixes available
0
Thousands-blocks assigned
2,366

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 972 with another code →
Sources
Wikipedia ↗
Area codes 214, 469, 972, and 945
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.