612
Area code
MN
United States geographic area code, in service since 1947-01-01.
Statusin service
Introduced1947-01-01
JurisdictionMN, US
Local dialing7D
Time zoneCentral
Last verified2026-09-17
Utilization 77.4% of assignable prefixes assigned
As of 09/17/2026
0%613 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 2001-01-26, most recent 2026-09-14.
Area codes serve rate-center geographies, not municipal boundaries. “MN” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | QWEST CORPORATION | 146 | 23.8% |
| 02 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 95 | 15.5% |
| 03 | AERIAL COMMUNICATIONS, INC. | 93 | 15.2% |
| 04 | NEW CINGULAR WIRELESS PCS, LLC - IL | 66 | 10.8% |
| 05 | ONVOY, LLC - MN | 27 | 4.4% |
| 06 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 18 | 2.9% |
| 07 | AMERICAN MESSAGING SERVICES, LLC | 18 | 2.9% |
| 08 | LEVEL 3 COMMUNICATIONS, LLC - MN | 17 | 2.8% |
| 09 | BANDWIDTH.COM CLEC, LLC - MN | 16 | 2.6% |
| 10 | TELEPORT COMMUNICATIONS AMERICA, LLC - MN | 14 | 2.3% |
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 612 entered service.
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 1999-11-29 | PL-200 ↗ | 612 NPA split, Creating 763 and 952 (Minnesota) |
| 1995-09-15 | IL-95-09-007 ↗ | NANP-SPLIT OF 612 (MINNESOTA) NUMBERING PLAN AREA (NPA) |