805
Area code
CA
United States geographic area code, in service since 1957-01-01. Part of the 805/820 overlay complex — ten-digit dialing required.
Split from 213. Created 661. Created 820. Overlaid with 820 .
Statusin service
Introduced1957-01-01
JurisdictionCA, US
Local dialing1+10D
Time zonePacific
Last verified2026-09-17
Utilization 101% of assignable prefixes assigned
As of 09/17/2026
0%800 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 2024-05-31.
Area codes serve rate-center geographies, not municipal boundaries. “CA” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | FRONTIER CALIFORNIA INC. | 140 | 17.5% |
| 02 | PACIFIC BELL | 115 | 14.4% |
| 03 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 100 | 12.5% |
| 04 | NEW CINGULAR WIRELESS PCS, LLC | 84 | 10.5% |
| 05 | T-MOBILE USA, INC. | 54 | 6.8% |
| 06 | ONVOY, LLC - CA | 34 | 4.3% |
| 07 | BANDWIDTH.COM CLEC, LLC - CA | 32 | 4% |
| 08 | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 29 | 3.6% |
| 09 | LEVEL 3 COMMUNICATIONS, LLC - CA | 27 | 3.4% |
| 10 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 25 | 3.1% |
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- 2017-06-19 NPA 820 to Overlay NPA 805 (California)
- 1957-01-01Area code 805 entered service (created from 213).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2017-06-19 | PL-509 ↗ | NPA 820 to Overlay NPA 805 (California) |