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 775
NEVADA BELL 122
ONVOY, LLC - NV 120
NEW CINGULAR WIRELESS PCS, LLC 48
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 42
T-MOBILE USA, INC. 28
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
2022-01-27 775-493 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 FALLON NV
2022-01-13 775-837 0XXX1XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LATHROWLLS NV
2021-12-23 775-492 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CARSON PL NV
2021-12-20 775-491 0–9 XXXall 10 · 5 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J RENO NV
2021-09-27 775-484 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 478J RENO NV
2021-09-09 775-481 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 FALLON NV
2021-08-18 775-480 0XXX1XXX2XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 MINA NV
2021-07-20 775-479 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PARADISVLY NV
2021-06-23 775-474 0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → TELNYX LLC 073H BEATTY NV
2021-05-19 775-471 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 SWEETWATER NV
2021-04-17 775-710 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NV 029F RENO NV
2021-04-15 775-902 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H RENO NV
2021-04-12 775-550 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H RENO NV
2021-03-04 775-467 0–9 XXXall 10 · 4 holders which blocks → IP HORIZON LLC 515J RENO NV
2021-03-04 775-469 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → IP HORIZON LLC 515J PAHRUMP NV
2021-02-02 775-895 0–9 XXXall 10 · 2 holders which blocks → TWILIO INTERNATIONAL, INC. 506J RENO NV
2020-12-23 775-566 0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H GOLDFIELD NV
2020-12-23 775-899 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H RENO NV
2020-12-23 775-922 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H SPVLYCHCRK NV
2020-12-23 775-946 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H SCHURZ NV
2020-10-23 775-462 0–9 XXXall 10 · 5 holders which blocks → CSC WIRELESS, LLC 425J RENO NV
2020-07-09 775-699 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H FALLON NV
2020-06-15 775-460 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF NEVADA, LLC - NV 408F RENO NV
2020-05-11 775-454 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NV 029F BEATTY NV
2020-05-11 775-456 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - NV 029F EMPIRE NV
2020-03-11 775-452 0–9 XXXall 10 · 8 holders which blocks → BANDWIDTH.COM CLEC, LLC - NV 075F DCKWTRCRNT NV
2020-02-10 775-466 0–9 XXXwhole prefix which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J RENO NV
2020-01-07 775-447 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H RENO NV
2019-09-18 775-446 0–9 XXXall 10 · 3 holders which blocks → EXIANT COMMUNICATIONS LLC 114J RENO NV
2019-08-28 775-449 0XXX1XXX9XXX · 3 holders which blocks → HD CARRIER LLC 321J COTNWD CRK NV
2019-08-12 775-441 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - NV 029F CRESCNTVLY NV
2019-08-12 775-510 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC - NV 029F MOUNTAINCY NV
2019-08-12 775-630 0XXX1XXX3XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - NV 029F SUTCLIFFE NV
2019-05-21 775-567 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H RENO NV
2019-05-16 775-732 5XXX which blocks → FRACTEL, LLC 965H STATELINE NV
2019-05-10 775-477 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H TONOPAH NV
2019-05-10 775-977 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H CARSONCITY NV
2019-05-10 775-988 0XXX2XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H ROUND MT NV
2019-05-09 775-439 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NV 075F FERNLEY NV
2019-02-22 775-877 0–9 XXXall 10 · 6 holders which blocks → TERRA NOVA TELECOM INC. 145J PAHRUMP NV
2018-12-20 775-438 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NV 029F LATHROWLLS NV
2018-11-15 775-799 0–9 XXXall 10 · 6 holders which blocks → HD CARRIER LLC 321J RENO NV
2018-05-29 775-717 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NV 029F MCGILL NV
2018-05-14 775-436 0–9 XXXall 10 · 8 holders which blocks → BANDWIDTH.COM CLEC, LLC - NV 075F LUND NV
2018-04-26 775-437 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NV 7376 RENO NV
2018-03-26 775-433 0–9 XXXall 10 · 3 holders which blocks → VONAGE AMERICA LLC 197D RENO NV
2017-10-03 775-900 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NV 029F RENO NV
2017-08-25 775-431 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 CARSONCITY NV
2017-08-24 775-451 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NV 029F RENO NV
2017-07-19 775-381 7XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NV 4805 LEE JIGGS NV

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.