650
Area code
Statusin service
Introduced1997-08-02
JurisdictionCA, US
Local dialing1+10D
Time zonePacific
Last verified2026-09-17
Utilization 92.2% of assignable prefixes assigned
As of 09/17/2026
0%730 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 2001-01-25, most recent 2026-09-03.
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 | PACIFIC BELL | 273 | 37.4% |
| 02 | NEW CINGULAR WIRELESS PCS, LLC | 59 | 8.1% |
| 03 | T-MOBILE USA, INC. | 57 | 7.8% |
| 04 | ONVOY, LLC - CA | 45 | 6.2% |
| 05 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 42 | 5.8% |
| 06 | LEVEL 3 COMMUNICATIONS, LLC - CA | 42 | 5.8% |
| 07 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 35 | 4.8% |
| 08 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 26 | 3.6% |
| 09 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 24 | 3.3% |
| 10 | BANDWIDTH.COM CLEC, LLC - CA | 16 | 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- 1997-08-02Area code 650 entered service (created from 415).
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 |
| 2011-06-21 | PL-421 ↗ | NPA 415, 619, 650, 707 - Relief Plans Dismissed (California) |
| 2000-01-14 | PL-206 ↗ | Overlays Suspended in the 408, 415, 510, 650, 714 & 909 NPAs |
| 1999-10-24 | PL-193 ↗ | NANP- Overlay of 650 Numbering Plan Area (NPA) with 764 NPA - California |
| 1998-07-24 | PL-129 ↗ | Extraordinary Jeopardy Procedures for 650 NPA in California |
| 1997-06-20 | PL-071 ↗ | Changes to the 415 and 714 NPA (California) Relief Plans |
| 1996-11-22 | PL-022 ↗ | NANP-Split of 415 (California) Numbering Plan Area (NPA) |