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
— 775-406 not yet reported which blocks → ONVOY, LLC - NV 029F VIRGINIACY NV
— 775-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 775-412 1XXX2XXX3XXX5XXX7XXX8XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NV 587C RENO NV
— 775-414 not yet reported which blocks → ONVOY, LLC - NV 029F COTNWD CRK NV
— 775-415 not yet reported which blocks → ONVOY, LLC - NV 029F CRYSTALBAY NV
— 775-416 not yet reported which blocks → ONVOY, LLC - NV 029F ELY NV
— 775-417 not yet reported which blocks → ONVOY, LLC - NV 029F CRYSTALBAY NV
— 775-418 not yet reported which blocks → ONVOY, LLC - NV 029F RENO NV
— 775-423 not yet reported which blocks → CHURCHILL COUNTY TELEPHONE DBA CC COMMUNICATIONS 2349 FALLON NV
— 775-424 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-425 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-426 none assigned yet which blocks → CHURCHILL COUNTY TELEPHONE DBA CC COMMUNICATIONS 2349 FALLON NV
— 775-427 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 FALLON NV
— 775-428 not yet reported which blocks → CHURCHILL COUNTY TELEPHONE DBA CC COMMUNICATIONS 2349 FALLON NV
— 775-429 not yet reported which blocks → ONVOY, LLC - NV 029F LUND NV
— 775-445 0XXX9XXX which blocks → NEVADA BELL 9742 CARSONCITY NV
— 775-448 6XXX which blocks → NEVADA BELL 9742 RENO NV
— 775-450 0XXX which blocks → T-MOBILE USA, INC. 6529 GARDNERVL NV
— 775-455 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 BATTLE MT NV
— 775-457 0XXX1XXX2XXX3XXX8XXX9XXX · 6 holders which blocks → TELNYX LLC 073H IMLAY NV
— 775-458 not yet reported which blocks → ONVOY, LLC - NV 029F WINNEMUCCA NV
— 775-459 not yet reported which blocks → ONVOY, LLC - NV 029F COTNWD CRK NV
— 775-463 8XXX which blocks → FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 4421 YERINGTON NV
— 775-465 0XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 4421 SMITH VLY NV
— 775-468 3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEVADA BELL 9742 CRESCNTVLY NV
— 775-472 not yet reported which blocks → BEEHIVE TELEPHONE CO., INC. - NEVADA 4612 MARYS RIV NV
— 775-475 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEVADA BELL 9742 COTNWD CRK NV
— 775-476 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEVADA BELL 9742 SUTCLIFFE NV
— 775-478 not yet reported which blocks → BEEHIVE TELEPHONE CO., INC. - NEVADA 4612 W WENDOVER NV
— 775-482 1XXX which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 TONOPAH NV
— 775-483 not yet reported which blocks → BEEHIVE TELEPHONE CO., INC. - NEVADA 4612 W WENDOVER NV
— 775-485 1XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 GOLDFIELD NV
— 775-486 0–9 XXXall 10 · 5 holders which blocks → TERRA NOVA TELECOM INC. 145J CARSONCITY NV
— 775-487 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 MANHATTAN NV
— 775-488 not yet reported which blocks → RURAL TEL CO 2233 JARBIDGE NV
— 775-489 not yet reported which blocks → BEEHIVE TELEPHONE CO., INC. - NEVADA 4612 PILOT VLY NV
— 775-490 2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → PEERLESS NETWORK OF NEVADA, LLC - NV 408F BEATTY NV
— 775-502 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - NV 075F RENO NV
— 775-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 775-513 3XXX4XXX5XXX7XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 PAHRUMP NV
— 775-514 not yet reported which blocks → ONVOY, LLC - NV 029F HAWTHORNE NV
— 775-521 not yet reported which blocks → ONVOY, LLC - NV 029F EMPIRE NV
— 775-522 not yet reported which blocks → ONVOY, LLC - NV 029F EUREKA NV
— 775-527 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-529 not yet reported which blocks → HUMBOLDT TELEPHONE COMPANY 3304 MIDAS NV
— 775-530 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 RENO NV
— 775-532 not yet reported which blocks → HUMBOLDT TELEPHONE COMPANY 3304 MCDERMITT NV
— 775-533 not yet reported which blocks → BEEHIVE TELEPHONE CO., INC. - NEVADA 4612 BURBANK NV
— 775-534 not yet reported which blocks → BEEHIVE TELEPHONE CO., INC. - NEVADA 4612 GOSHUTE NV
— 775-535 not yet reported which blocks → ONVOY, LLC - NV 029F GABBS 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.