NRNumberResearch Membership · Data 09/17/2026

← Area code 650

All assignees

730 prefixes in 650 · initial assignments from the NANPA CO code file, 09/17/2026

Prefixes held by all assignees in area code 650
NPA-NXXRate centerOCNAssignedPooled
650-401 SAN MATEO 9740 — —
650-402 HALFMOONBY 6529 2018-01-18 Yes
650-403 SAN MATEO 7229 — —
650-404 MT VIEW 9740 — Yes
650-405 LOS ALTOS 6010 2018-05-08 Yes
650-406 MT VIEW 6906 — —
650-407 PALO ALTO 6006 2018-05-09 Yes
650-408 MT VIEW 6010 2024-11-25 Yes
650-409 MILLBRAE 671J — Yes
650-410 SSNFRNCSCO 649C 2016-05-11 Yes
650-411 XXXXXXXXXX MULT — —
650-412 SNCRL-BLMT 7229 — Yes
650-413 SNCRL-BLMT 9740 — Yes
650-414 REDWOOD CY 7145 2018-12-17 Yes
650-416 SSNFRNCSCO 671J — Yes
650-417 MT VIEW 671J — Yes
650-418 SAN MATEO 6006 2019-03-20 Yes
650-419 LA HONDA 8826 — Yes
650-420 PACIFICA 6529 2018-08-08 Yes
650-421 REDWOOD CY 671J — Yes
650-422 PALO ALTO 6006 2013-04-19 Yes
650-423 REDWOOD CY 9262 — —
650-424 PALO ALTO 9740 — Yes
650-425 SAN MATEO 7229 — Yes
650-426 MT VIEW 7229 — Yes
650-427 PALO ALTO 7240 2006-12-27 Yes
650-428 MT VIEW 9740 — —
650-429 MT VIEW 7240 — Yes
650-430 SAN MATEO 6529 2001-12-27 —
650-431 SAN MATEO 6529 2015-09-11 Yes
650-432 SAN MATEO 9740 — —
650-433 PALO ALTO 7229 — Yes
650-434 WOODSIDE 671J — Yes
650-435 SAN MATEO 6006 2015-02-16 Yes
650-436 SAN MATEO 6010 2015-09-08 Yes
650-437 SAN MATEO 981E 2014-03-03 Yes
650-438 SSNFRNCSCO 6010 2001-10-18 Yes
650-439 MT VIEW 6010 2018-10-04 Yes
650-440 HALFMOONBY 6529 2002-09-19 Yes
650-441 PALO ALTO 6006 2015-09-04 Yes
650-442 SSNFRNCSCO 981E 2022-09-26 Yes
650-443 MILLBRAE 671J — Yes
650-444 PALO ALTO 6529 — Yes
650-445 SAN MATEO 6529 2013-07-22 Yes
650-446 WOODSIDE 981E — Yes
650-447 MT VIEW 6529 2016-08-30 Yes
650-448 MT VIEW 373F 2016-08-31 Yes
650-449 SNFC JUNPR 7229 — Yes
650-450 MT VIEW 6010 2002-01-28 Yes
650-451 PACIFICA 6529 — Yes
650-452 SSNFRNCSCO 7421 — Yes
650-453 SNCRL-BLMT 8826 — Yes
650-454 REDWOOD CY 6010 2002-01-28 Yes
650-455 MILLBRAE 6010 — Yes
650-456 PESCADERO 649C — Yes
650-457 SSNFRNCSCO 6010 2015-10-23 Yes
650-458 SAN MATEO 485E — Yes
650-459 HALFMOONBY 981E 2019-02-06 Yes
650-460 PALO ALTO 6010 2014-10-17 Yes
650-461 PALO ALTO 9740 — Yes
650-462 PALO ALTO 9740 — Yes
650-463 PALO ALTO 9740 — Yes
650-464 REDWOOD CY 6006 — —
650-465 REDWOOD CY 6006 — —
650-466 SNFC JUNPR 9740 — Yes
650-467 SSNFRNCSCO 9740 — —
650-468 PALO ALTO 6529 2001-04-23 Yes
650-469 LOS ALTOS 7229 — Yes
650-470 PALO ALTO 9740 — Yes
650-471 LOS ALTOS 671J — Yes
650-472 LOS ALTOS 8826 — Yes
650-473 PALO ALTO 9740 — —
650-474 REDWOOD CY 9740 — Yes
650-475 PALO ALTO 7229 — Yes
650-476 HALFMOONBY 6529 2016-09-21 Yes
650-477 SAN MATEO 6006 — Yes
650-478 SNFC CNTRL 9740 — —
650-479 HALFMOONBY 671J — Yes
650-480 REDWOOD CY 7229 — Yes
650-481 REDWOOD CY 7240 — Yes
650-482 REDWOOD CY 9740 — Yes
650-483 SAN MATEO 6010 — —
650-484 SAN MATEO 6010 2016-07-08 Yes
650-485 PALO ALTO 9740 — Yes
650-486 SNCRL-BLMT 9740 — Yes
650-487 LA HONDA 671J — Yes
650-488 SNFC JUNPR 7145 — Yes
650-489 SNCRL-BLMT 8826 — Yes
650-490 MILLBRAE 6010 2002-01-28 Yes
650-491 SSNFRNCSCO 8826 — Yes
650-492 LOS ALTOS 6010 2002-01-28 Yes
650-493 PALO ALTO 9740 — —
650-494 PALO ALTO 9740 — Yes
650-495 MT VIEW 6529 2015-08-26 Yes
650-496 PALO ALTO 9740 — —
650-497 PALO ALTO 8826 — —
650-498 PALO ALTO 8826 — —
650-499 MT VIEW 981E 2016-04-25 Yes
650-500 SNCRL-BLMT 6906 — —
650-501 PACIFICA 981E 2019-02-08 Yes

These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.