901
Area code
Statusin service
Introduced1947-01-01
JurisdictionTN, US
Local dialing7D
Time zoneCentral
Last verified2026-09-17
Utilization 81.4% of assignable prefixes assigned
As of 09/17/2026
0%645 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 2001-01-23, most recent 2026-08-13.
Area codes serve rate-center geographies, not municipal boundaries. “TN” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 175 | 27.1% |
| 02 | NEW CINGULAR WIRELESS PCS, LLC - GA | 93 | 14.4% |
| 03 | POWERTEL MEMPHIS LICENSES, INC. | 64 | 9.9% |
| 04 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 36 | 5.6% |
| 05 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 35 | 5.4% |
| 06 | ONVOY, LLC - TN | 34 | 5.3% |
| 07 | BANDWIDTH.COM CLEC, LLC - TN | 17 | 2.6% |
| 08 | SPOK, INC. | 16 | 2.5% |
| 09 | LEVEL 3 TELECOM OF TENNESSEE, LLC - TN | 15 | 2.3% |
| 10 | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 14 | 2.2% |
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 901 entered service.
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2000-10-30 | PL-247 ↗ | 901 NPA Split, Creating 731 NPA (Tennessee) |
| 2000-04-17 | PL-224 ↗ | Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for the 901 NPA (Tennessee) |