808
Area code
HI
United States geographic area code, in service since 1957-01-01.
Statusin service
Introduced1957-01-01
JurisdictionHI, US
Local dialing10D
Last verified2026-09-17
Utilization 89.8% of assignable prefixes assigned
As of 09/17/2026
0%711 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 2001-01-31, most recent 2026-09-16.
Area codes serve rate-center geographies, not municipal boundaries. “HI” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | HAWAIIAN TELCOM, INC. - HI | 309 | 43.5% |
| 02 | T-MOBILE USA, INC. | 72 | 10.1% |
| 03 | NEW CINGULAR WIRELESS PCS, LLC | 56 | 7.9% |
| 04 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI | 54 | 7.6% |
| 05 | LEVEL 3 TELECOM OF HAWAII, LP - HI | 24 | 3.4% |
| 06 | SPOK, INC. | 23 | 3.2% |
| 07 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 22 | 3.1% |
| 08 | ONVOY, LLC - HI | 21 | 3% |
| 09 | LEVEL 3 COMMUNICATIONS, LLC - HI | 16 | 2.3% |
| 10 | TELEPORT COMMUNICATIONS AMERICA, LLC - HI | 15 | 2.1% |
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- 1957-01-01Area code 808 entered service.
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2021-01-08 | PL-556 ↗ | Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Lifeline) – supersedes PL-544 |
| 2020-08-17 | PL-544 ↗ | Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline |
| 2000-03-02 | PL-220 ↗ | Introduction of Interchangeable Central Office Codes in the 808 NPA (Hawaii) |