Northeast Texas (overlay)

An overlay of area code 903, sharing the same Northeast Texas territory (Tyler, Longview, Texarkana). Added in 2003.

The essentials Numbering data · NumberResearch · as of 2026-09-18

Place

Type

geographic

Status

in service

In service since

2003

Projected exhaust

2047 Q1

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 430 is

Northeastern Texas (same footprint as 903).

Communities served wholly or partly by 430:

TylerLongviewTexarkanaShermanKilgoreParis

Representative; identical footprint to 903 (~33 counties).

B · Relationships

How it relates to other codes

The codes 430 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 · 2003 903 Northeast Texas 430 overlays the identical 903 footprint; assigned Feb 15, 2003.

What's changing. Active overlay complex (903/430). Mandatory 10-digit dialing.

C · History

How 430 got here

2003-02-15

Assigned as an overlay of area code 903 across Northeast Texas.

Source: Wikipedia (Area codes 903 and 430)

D · Capacity

How full it is

Prefixes assigned

303

Prefixes available

497

Thousands-blocks assigned

1,953

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

Compare 430 with another code →

Sources

Wikipedia ↗

Area codes 903 and 430

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.