NRNumberResearch Membership · Data 09/17/2026

← Area code 650

PACIFIC BELL

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

Prefixes held by PACIFIC BELL in area code 650
NPA-NXXRate centerOCNAssignedPooled
650-525 SAN MATEO 9740 — Yes
650-526 MT VIEW 9740 — Yes
650-527 MT VIEW 9740 — —
650-528 MT VIEW 9740 — Yes
650-529 WOODSIDE 9740 — Yes
650-542 REDWOOD CY 9740 — Yes
650-548 SAN MATEO 9740 — —
650-550 SNFC JUNPR 9740 — Yes
650-551 SNCRL-BLMT 9740 — Yes
650-552 MILLBRAE 9740 — Yes
650-553 SSNFRNCSCO 9740 — —
650-554 SAN MATEO 9740 — Yes
650-556 REDWOOD CY 9740 — Yes
650-557 PACIFICA 9740 — Yes
650-558 SAN MATEO 9740 — —
650-559 LOS ALTOS 9740 — Yes
650-560 HALFMOONBY 9740 — Yes
650-561 PALO ALTO 9740 — Yes
650-562 REDWOOD CY 9740 — Yes
650-563 MOSS BEACH 9740 — Yes
650-564 MT VIEW 9740 — Yes
650-565 PALO ALTO 9740 — —
650-566 PALO ALTO 9740 — —
650-567 MT VIEW 9740 — Yes
650-568 REDWOOD CY 9740 — —
650-569 REDWOOD CY 9740 — Yes
650-570 SAN MATEO 9740 — Yes
650-571 SAN MATEO 9740 — Yes
650-572 SAN MATEO 9740 — —
650-573 SAN MATEO 9740 — —
650-574 SAN MATEO 9740 — Yes
650-577 SAN MATEO 9740 — Yes
650-578 SAN MATEO 9740 — —
650-579 SAN MATEO 9740 — —
650-583 SSNFRNCSCO 9740 — —
650-584 MT VIEW 9740 — Yes
650-588 SSNFRNCSCO 9740 — —
650-589 SSNFRNCSCO 9740 — —
650-591 SNCRL-BLMT 9740 — —
650-592 SNCRL-BLMT 9740 — —
650-593 SNCRL-BLMT 9740 — —
650-594 SNCRL-BLMT 9740 — Yes
650-595 SNCRL-BLMT 9740 — Yes
650-596 SNCRL-BLMT 9740 — —
650-598 SNCRL-BLMT 9740 — —
650-599 REDWOOD CY 9740 — —
650-603 MT VIEW 9740 — Yes
650-604 MT VIEW 9740 — —
650-607 SNCRL-BLMT 9740 — —
650-610 SNCRL-BLMT 9740 — Yes
650-612 SAN MATEO 9740 — —
650-614 PALO ALTO 9740 — Yes
650-615 SSNFRNCSCO 9740 — —
650-616 SSNFRNCSCO 9740 — —
650-617 PALO ALTO 9740 — Yes
650-620 SNCRL-BLMT 9740 — Yes
650-621 PALO ALTO 9740 — Yes
650-622 SNCRL-BLMT 9740 — Yes
650-623 MT VIEW 9740 — Yes
650-624 SSNFRNCSCO 9740 — —
650-625 MT VIEW 9740 — Yes
650-627 SAN MATEO 9740 — Yes
650-631 SNCRL-BLMT 9740 — —
650-632 SNCRL-BLMT 9740 — Yes
650-633 SNCRL-BLMT 9740 — —
650-634 SSNFRNCSCO 9740 — Yes
650-635 SSNFRNCSCO 9740 — —
650-637 SNCRL-BLMT 9740 — —
650-638 SAN MATEO 9740 — Yes
650-652 MILLBRAE 9740 — Yes
650-654 SNCRL-BLMT 9740 — Yes
650-655 SAN MATEO 9740 — —
650-685 SAN MATEO 9740 — —
650-688 PALO ALTO 9740 — Yes
650-691 MT VIEW 9740 — Yes
650-692 MILLBRAE 9740 — —
650-694 MT VIEW 9740 — Yes
650-696 SAN MATEO 9740 — Yes
650-697 MILLBRAE 9740 — —
650-701 REDWOOD CY 9740 — Yes
650-712 HALFMOONBY 9740 — —
650-726 HALFMOONBY 9740 — —
650-728 MOSS BEACH 9740 — Yes
650-737 SSNFRNCSCO 9740 — Yes
650-738 PACIFICA 9740 — —
650-739 PALO ALTO 9740 — Yes
650-741 SSNFRNCSCO 9740 — Yes
650-742 SSNFRNCSCO 9740 — —
650-746 SNFC JUNPR 9740 — Yes
650-747 LA HONDA 9740 — Yes
650-752 PALO ALTO 9740 — Yes
650-754 SSNFRNCSCO 9740 — Yes
650-755 SNFC JUNPR 9740 — —
650-756 SNFC JUNPR 9740 — —
650-757 SNFC JUNPR 9740 — —
650-758 SNFC JUNPR 9740 — Yes
650-761 SNFC JUNPR 9740 — Yes
650-762 SAN MATEO 9740 — Yes
650-777 MILLBRAE 9740 — Yes
650-780 REDWOOD CY 9740 — 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.