Area code

OH

United States geographic area code, in service since 1947-01-01.

Created 330. Created 440.

Statusin service

Introduced1947-01-01

JurisdictionOH, US

Local dialing7D

Time zoneEastern

Last verified2026-09-17

Utilization 80.4% of assignable prefixes assigned As of 09/17/2026

0%637 of ~792 assignable NXX values (200–999 excl. N11)100%

Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2001-01-08, most recent 2026-09-03.

Area codes serve rate-center geographies, not municipal boundaries. “OH” identifies the jurisdiction, not an exact city footprint.

Top assignees

Ranked by assigned prefixes · initial assignee ≠ current carrier

Largest initial assignees in area code 216
Rank	Assignee	Prefixes	Share
01	OHIO BELL TEL CO	211	33.1%
02	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	84	13.2%
03	T-MOBILE USA, INC.	64	10%
04	NEW CINGULAR WIRELESS PCS, LLC - IL	31	4.9%
05	ONVOY, LLC - OH	29	4.6%
06	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH	29	4.6%
07	SPOK, INC.	24	3.8%
08	TELEPORT COMMUNICATIONS AMERICA, LLC - OH	23	3.6%
09	LEVEL 3 COMMUNICATIONS, LLC - OH	22	3.5%
10		16	2.5%

Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.

Change history

Recorded events for this NPA

1947-01-01Area code 216 entered service.

Planning letters & orders

Primary documents

NANPA planning letters for area code 216
Date	Document	Subject
1995-11-17	IL-95-11-008 ↗	NANP-SPLIT OF 216 (OHIO) NUMBERING PLAN AREA (NPA)

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