North American Numbers Source-cited · ownership disclosed
Area code
601
In service
United States · since 1947

Jackson

One of the original 1947 North American area codes, 601 originally covered all of Mississippi and now serves central and southern Mississippi including Jackson. It is overlaid by 769.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Jackson
Type
geographic
Status
in service
In service since
1947
Projected exhaust
2052 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 601 is

Central and southern Mississippi, excluding the three Gulf Coast counties..

Communities served wholly or partly by 601:

JacksonVicksburgMeridianHattiesburgLaurelNatchezBrookhaven

Article lists roughly 60 municipalities in the 601/769 area.

B · Relationships

How it relates to other codes

The codes 601 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?

Spawned · 1997 228 Gulf Coast (Biloxi-Gulfport) 228 split off from 601 to serve the Gulf Coast.
Spawned · 1999 662 Northern Mississippi (Tupelo-Oxford) 662 split off from 601 to serve northern Mississippi.
Overlay · 2005 769 Jackson (overlay) 769 added as the state's first overlay of the 601 area.
What's changing. Overlaid by 769 since March 14, 2005; ten-digit dialing required.
C · History

How 601 got here

1947
Established as one of the original NANP area codes, covering the whole state of Mississippi.
Source: Wikipedia
1997
Area code 228 split off for the Gulf Coast.
Source: Wikipedia
1999
Area code 662 split off for northern Mississippi.
Source: Wikipedia
2005-03-14
Overlay code 769 approved — Mississippi's first overlay complex.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
800
Prefixes available
0
Thousands-blocks assigned
2,388

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

Compare 601 with another code →
Sources
Wikipedia ↗
Area codes 601 and 769
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.