North American Numbers Source-cited · ownership disclosed
Area code
620
In service
United States · since 2001

Southern Kansas (outside Wichita)

Serves most of the southern half of Kansas outside the Wichita metro, from the Colorado to the Missouri border. Created in 2001 by a geographic split from 316.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Southern Kansas (outside Wichita)
Type
geographic
Status
in service
In service since
2001
Projected exhaust
2033 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 620 is

Southern Kansas excluding the Wichita area; wraps entirely around area code 316..

Communities served wholly or partly by 620:

HutchinsonDodge CityGarden CityEmporiaLiberalGreat BendCoffeyvillePittsburgWinfield
B · Relationships

How it relates to other codes

The codes 620 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 · 2001 316 Wichita 620 split from 316 in 2001 and completely surrounds the 316 enclave.
Related · 2001 785 Topeka / northern Kansas Adjacent to the north.
What's changing. No overlay; created as a geographic split.
C · History

How 620 got here

2001-02-03
Established via geographic split from 316, driven by number-supply pressure from the Wichita area.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
719
Prefixes available
81
Thousands-blocks assigned
2,590

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

Compare 620 with another code →
Sources
Wikipedia ↗
Area code 620
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.