North American Numbers Source-cited · ownership disclosed
Area code
440
In service
United States · since 1997

Cleveland suburbs

Serves the Greater Cleveland suburbs and surrounding northeastern Ohio counties. Created in 1997 in a three-way split of the original 216.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Cleveland suburbs
Type
geographic
Status
in service
In service since
1997
Projected exhaust
2120 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 440 is

Cleveland suburbs and outlying counties (a ring around Cuyahoga County).

Communities served wholly or partly by 440:

ParmaLorainElyriaMentorWestlakeStrongsville

Parma is the largest city in the NPA; covers all of Lake and Geauga, most of Ashtabula and Lorain, parts of Erie, Huron, Trumbull, and far-eastern Cuyahoga.

B · Relationships

How it relates to other codes

The codes 440 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 · 1997 216 Cleveland Split from the original 216 (a three-way split that also earlier produced 330).
Overlay · 2024 436 Cleveland suburbs (overlay) 436 overlays the 440 area.
Related 216 Cleveland Wraps around 216 (Cleveland).
What's changing. Overlaid by 436 since March 1, 2024; ten-digit dialing required.
C · History

How 440 got here

1997-08-16
Created via split of 216 due to prefix exhaustion from cellular growth.
Source: Wikipedia: Area codes 440 and 436
2024-03-01
Overlaid by area code 436.
Source: Wikipedia: Area codes 440 and 436
D · Capacity

How full it is

Prefixes assigned
771
Prefixes available
29
Thousands-blocks assigned
4,128

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

Compare 440 with another code →
Sources
Wikipedia ↗
Area codes 440 and 436
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.