North American Numbers Source-cited · ownership disclosed
Area code
832
In service
United States · since 1999

Houston (overlay)

The first true overlay of the Houston complex, added in 1999 over the combined 713/281 territory. Has no distinct geography of its own.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Houston (overlay)
Type
geographic
Status
in service
In service since
1999
Projected exhaust
2039 Q2

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 832 is

Greater Houston metropolitan area, Texas (same footprint as 713/281/346/621).

Communities served wholly or partly by 832:

HoustonKatyThe WoodlandsSugar LandPearlandBaytownConroe

Representative; overlay code with no unique sub-region.

B · Relationships

How it relates to other codes

The codes 832 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?

Overlay · 1999 713 Houston 832 added as an overlay when the 713/281 boundary was erased.
Overlay · 1999 281 Houston Co-overlay of the same region.
Overlay · 2014 346 Houston (overlay) 346 joined the complex in 2014.
Overlay · 2025 621 Houston (overlay) 621 joined the complex in 2025.
What's changing. Member of the 713/281/832/346/621 all-services overlay. Mandatory 10-digit dialing.
C · History

How 832 got here

1999-01-16
Activated as an overlay of the combined 713/281 region; 10-digit dialing became mandatory.
Source: Wikipedia (Area codes 713, 281, 832, 346, and 621)
D · Capacity

How full it is

Prefixes assigned
800
Prefixes available
0
Thousands-blocks assigned
5,755

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

Compare 832 with another code →
Sources
Wikipedia ↗
Area codes 713, 281, 832, 346, and 621
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.