NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 669
T-MOBILE USA, INC. 45
ONVOY, LLC - CA 43
FRACTEL, LLC 30
NEW CINGULAR WIRELESS PCS, LLC 21
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 18
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2022-10-03 669-324 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 CAMPBELL CA
2022-08-30 669-332 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - CA 649C SARATOGA CA
2022-07-29 669-323 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SUNNYVALE CA
2022-07-22 669-318 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E SNJS SOUTH CA
2022-07-21 669-321 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SNJS SOUTH CA
2022-07-14 669-320 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SARATOGA CA
2022-07-01 669-317 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SNJS NORTH CA
2022-06-29 669-314 0–9 XXXall 10 · 5 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SUNNYVALE CA
2022-06-29 669-316 0–9 XXXall 10 · 4 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CAMPBELL CA
2022-06-07 669-328 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNJS WEST CA
2022-05-27 669-786 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SNJS SOUTH CA
2022-05-26 669-315 0–9 XXXall 10 · 4 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNJS NORTH CA
2022-05-06 669-312 0–9 XXXall 10 · 6 holders which blocks → METROPCS, INC. 5562 SNJS SOUTH CA
2022-04-12 669-310 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 SARATOGA CA
2022-03-18 669-455 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SUNNYVALE CA
2022-02-25 669-322 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C CAMPBELL CA
2022-02-22 669-667 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H CAMPBELL CA
2022-02-02 669-690 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H SNJS NORTH CA
2022-01-21 669-766 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H MORGANHILL CA
2022-01-11 669-639 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LOS GATOS CA
2022-01-11 669-746 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GILROY CA
2022-01-11 669-832 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SNJS WEST CA
2022-01-11 669-837 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SNJS SOUTH CA
2022-01-10 669-308 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SNJS NORTH CA
2022-01-10 669-437 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MORGANHILL CA
2021-11-15 669-319 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SNJS WEST CA
2021-11-04 669-338 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C CAMPBELL CA
2021-11-02 669-499 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNJS NORTH CA
2021-10-26 669-331 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 SNJS SOUTH CA
2021-07-16 669-587 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SAN MARTIN CA
2021-07-07 669-799 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNJS SOUTH CA
2021-07-07 669-877 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H CAMPBELL CA
2021-07-07 669-899 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H LOS GATOS CA
2021-07-07 669-977 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SNJS WEST CA
2021-06-29 669-577 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SUNNYVALE CA
2021-06-04 669-599 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H GILROY CA
2021-04-13 669-688 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H SARATOGA CA
2021-04-13 669-788 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SUNNYVALE CA
2021-03-10 669-386 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNJS NORTH CA
2021-03-10 669-842 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNJS SOUTH CA
2021-02-17 669-677 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H CAMPBELL CA
2021-01-27 669-388 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SNJS WEST CA
2021-01-13 669-307 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 SNJS NORTH CA
2020-12-14 669-609 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - CA 649C CAMPBELL CA
2020-12-07 669-306 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C SNJS NORTH CA
2020-12-04 669-399 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H SAN MARTIN CA
2020-12-04 669-588 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SNJS WEST CA
2020-11-13 669-758 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H LOS GATOS CA
2020-11-11 669-369 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - CA 649C SNJS WEST CA
2020-11-11 669-649 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - CA 649C SUNNYVALE CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.