NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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
— 775-629 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → NEVADA BELL 9742 STAGECOACH NV
— 775-635 none assigned yet which blocks → NEVADA BELL 9742 BATTLE MT NV
— 775-637 0–9 XXXall 10 · 9 holders which blocks → ONVOY, LLC - NV 029F GABBS NV
— 775-640 not yet reported which blocks → ONVOY, LLC - NV 029F EUREKA NV
— 775-655 not yet reported which blocks → ONVOY, LLC - NV 029F ROUND MT NV
— 775-659 not yet reported which blocks → ONVOY, LLC - NV 029F HAWTHORNE NV
— 775-664 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 WENDOVER NV
— 775-665 not yet reported which blocks → ONVOY, LLC - NV 029F SILVER SPG NV
— 775-666 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 FALLON NV
— 775-667 not yet reported which blocks → ONVOY, LLC - NV 029F MCGILL NV
— 775-673 9XXX which blocks → NEVADA BELL 9742 RENO NV
— 775-674 5XXX9XXX · 2 holders which blocks → NEVADA BELL 9742 RENO NV
— 775-677 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-684 9XXX which blocks → NEVADA BELL 9742 CARSONCITY NV
— 775-685 0XXX3XXX4XXX6XXX8XXX9XXX · 3 holders which blocks → NEVADA BELL 9742 RENO NV
— 775-686 0XXX3XXX4XXX6XXX8XXX9XXX · 3 holders which blocks → NEVADA BELL 9742 RENO NV
— 775-687 not yet reported which blocks → NEVADA BELL 9742 CARSONCITY NV
— 775-688 9XXX which blocks → NEVADA BELL 9742 RENO NV
— 775-689 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-690 none assigned yet which blocks → T-MOBILE USA, INC. 6529 CARSONCITY NV
— 775-691 none assigned yet which blocks → T-MOBILE USA, INC. 6529 CARSONCITY NV
— 775-700 not yet reported which blocks → NV
— 775-703 not yet reported which blocks → ONVOY, LLC - NV 029F MCDERMITT NV
— 775-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 775-719 not yet reported which blocks → ONVOY, LLC - NV 029F SCHURZ NV
— 775-720 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CARSONCITY NV
— 775-721 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CARSONCITY NV
— 775-722 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 RENO NV
— 775-724 not yet reported which blocks → LINCOLN COUNTY TEL. SYSTEM, INC. 2351 LAKEVALLEY NV
— 775-725 not yet reported which blocks → LINCOLN COUNTY TEL. SYSTEM, INC. 2351 ALAMO NV
— 775-726 not yet reported which blocks → LINCOLN COUNTY TEL. SYSTEM, INC. 2351 CALIENTE NV
— 775-727 not yet reported which blocks → NEVADA BELL 9742 PAHRUMP NV
— 775-728 not yet reported which blocks → LINCOLN COUNTY TEL. SYSTEM, INC. 2351 PANACA NV
— 775-729 not yet reported which blocks → LINCOLN COUNTY TEL. SYSTEM, INC. 2351 SAND SPG NV
— 775-738 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 ELKO NV
— 775-741 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 RENO NV
— 775-742 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-743 not yet reported which blocks → ONVOY, LLC - NV 029F IMLAY NV
— 775-744 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 LEE JIGGS NV
— 775-745 none assigned yet which blocks → T-MOBILE USA, INC. 6529 RENO NV
— 775-746 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-747 9XXX which blocks → NEVADA BELL 9742 RENO NV
— 775-748 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 ELKO NV
— 775-749 2XXX3XXX4XXX8XXX · 4 holders which blocks → FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 4421 GLENBROOK NV
— 775-750 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 RENO NV
— 775-751 not yet reported which blocks → NEVADA BELL 9742 PAHRUMP NV
— 775-752 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 WELLS NV
— 775-753 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 ELKO NV
— 775-754 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 CARLIN NV
— 775-755 not yet reported which blocks → FILER MUTUAL TEL CO 2220 JACKPOT NV

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.