NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 760
FRONTIER CALIFORNIA INC. 140
PACIFIC BELL 130
NEW CINGULAR WIRELESS PCS, LLC 70
LEVEL 3 COMMUNICATIONS, LLC - CA 61
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 60
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
2024-01-04 760-286 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H OCSD OCSD CA
2023-11-02 760-467 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VTVL HSPR CA
2023-10-25 760-210 0XXX1XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MAMMOTHLKS CA
2023-08-11 760-869 0XXX1XXX2XXX3XXX4XXX8XXX · 2 holders which blocks → COMMIO, LLC 939H RAMONA CA
2023-08-10 760-287 0XXX1XXX2XXX3XXX4XXX which blocks → COMMIO, LLC 939H FORT IRWIN CA
2023-08-10 760-319 0–9 XXXall 10 · 5 holders which blocks → COMMIO, LLC 939H HOLTVILLE CA
2023-08-10 760-426 0XXX1XXX2XXX3XXX4XXX which blocks → COMMIO, LLC 939H JULIAN CA
2023-08-10 760-850 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 BRAWLEY CA
2022-10-25 760-229 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VTVL HSPR CA
2022-10-25 760-649 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CA 649C ENCINITAS CA
2014-12-09 760-909 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 EL CENTRO CA
2014-11-21 760-442 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 BRAWLEY CA
2014-11-21 760-626 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 FALLBROOK CA
2014-11-18 760-925 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRAWLEY CA
2013-03-25 760-706 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F WRWD PHLN CA
2013-03-12 760-818 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K BARSTOW CA
2013-03-08 760-313 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K EAGLE MT CA
2013-03-08 760-503 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F VTVL APVY CA
2013-03-05 760-528 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E HOLTVILLE CA
2013-01-31 760-573 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J OCSD OCSD CA
2013-01-14 760-507 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - CA 649C PALM SPG CA
2013-01-04 760-675 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 EL CENTRO CA
2012-11-07 760-867 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E VTVL ADLN CA
2012-10-09 760-441 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BRSW YERM CA
2012-10-02 760-292 0–9 XXXall 10 · 5 holders which blocks → MCC TELEPHONY LLC 593K PAUMA VLY CA
2012-08-28 760-493 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VICTORVL CA
2012-05-07 760-338 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CALIFORNCY CA
2012-01-30 760-800 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 TWNTYNPLMS CA
2012-01-12 760-919 0–9 XXXall 10 · 7 holders which blocks → PAETEC ITEL, LLC 829J IMPERIAL CA
2011-12-28 760-998 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E VTVL HSPR CA
2011-12-27 760-463 0–9 XXXall 10 · 8 holders which blocks → MCC TELEPHONY OF THE WEST, LLC - CA 857F RIDGECREST CA
2011-12-05 760-853 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 YUCCA VLY CA
2011-11-22 760-970 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K EL CENTRO CA
2011-08-16 760-984 0–9 XXXall 10 · 7 holders which blocks → WIDE VOICE, LLC - CA 252F INDIO CA
2011-07-25 760-848 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 INDIO CA
2011-06-02 760-991 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J VTVL ADLN CA
2011-04-04 760-993 0–9 XXXall 10 · 5 holders which blocks → FRONTIER CALIFORNIA INC. 2319 DSERTHTSPG CA
2011-03-29 760-979 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 BARSTOW CA
2011-03-25 760-790 0–9 XXXall 10 · 6 holders which blocks → AT&T - LOCAL 7421 BRAWLEY CA
2011-02-14 760-980 0–9 XXXall 10 · 4 holders which blocks → YMAX COMMUNICATIONS CORP. - CA 258E PALM SPG CA
2011-01-10 760-879 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 EL CENTRO CA
2010-07-26 760-698 0–9 XXXall 10 · 3 holders which blocks → METROPCS NETWORKS, LLC 899D INDIO CA
2010-06-30 760-691 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VISTA CA
2010-06-22 760-609 0–9 XXXall 10 · 3 holders which blocks → METROPCS NETWORKS, LLC 899D INDIO CA
2010-06-11 760-659 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E VISTA CA
2010-06-11 760-678 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E BARSTOW CA
2010-03-17 760-905 0–9 XXXwhole prefix which blocks → METROPCS NETWORKS, LLC 899D PALM SPG CA
2010-02-18 760-906 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 RAMONA CA
2010-02-15 760-893 0–9 XXXall 10 · 3 holders which blocks → PACIFIC BELL 9740 OCSD CRLS CA
2010-02-09 760-600 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.