North American Numbers Source-cited · ownership disclosed
Area code
364
In service
United States · since 2014

Western Kentucky (overlay)

Area code 364 is an overlay of 270 covering western and south-central Kentucky. It entered service on March 3, 2014, after a planned split was abandoned in favor of an overlay.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Western Kentucky (overlay)
Type
geographic
Status
in service
In service since
2014
Projected exhaust
2109 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 364 is

Same territory as 270: western Kentucky and the western half of south-central Kentucky..

Communities served wholly or partly by 364:

Bowling GreenOwensboroPaducahHendersonHopkinsvilleElizabethtownMadisonvilleMurray

Serves the identical geography as 270 (overlay).

B · Relationships

How it relates to other codes

The codes 364 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 · 2014 270 Western Kentucky Overlay of 270 since March 3, 2014; identical geographic coverage.
What's changing. Overlay of 270 (in service since March 3, 2014); both codes serve the same geography.
C · History

How 364 got here

2007
Selected by the Kentucky PSC as a relief code for 270 (originally as a split).
Source: Wikipedia
2014-03-03
Entered service as an overlay of 270; ten-digit dialing required.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
86
Prefixes available
714
Thousands-blocks assigned
392

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

Compare 364 with another code →
Sources
Wikipedia ↗
Area codes 270 and 364
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.