220
Area code
OH
United States geographic area code, in service since 2015-04-22. Part of the 220/740 overlay complex — ten-digit dialing required.
Statusin service
Introduced2015-04-22
JurisdictionOH, US
Local dialing10D
Time zoneEastern
Last verified2026-09-17
Utilization 19.7% of assignable prefixes assigned
As of 09/17/2026
0%156 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 2015-04-13, most recent 2026-09-09.
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| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | FRACTEL, LLC | 35 | 22.4% |
| 02 | ONVOY, LLC - OH | 28 | 17.9% |
| 03 | NEW CINGULAR WIRELESS PCS, LLC - IL | 25 | 16% |
| 04 | AERIAL COMMUNICATIONS, INC. | 15 | 9.6% |
| 05 | MULTIPLE OCN LISTING | 9 | 5.8% |
| 06 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 9 | 5.8% |
| 07 | ONVOY SPECTRUM, LLC | 6 | 3.8% |
| 08 | 5 | 3.2% | |
| 09 | BANDWIDTH.COM CLEC, LLC - OH | 4 | 2.6% |
| 10 | TON80 COMMUNICATIONS, LLC | 3 | 1.9% |
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- 2014-10-24 NPA 220 to Overlay NPA 740 (Ohio)
- 2015-04-22Area code 220 entered service (created from 740).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2014-10-24 | PL-471 ↗ | NPA 220 to Overlay NPA 740 (Ohio) |
| 2014-02-03 | PL-462 ↗ | NPA 220 to Overlay NPA 740 (Ohio) |