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
— 775-756 not yet reported which blocks → RURAL TEL CO 2233 TUSCARORA NV
— 775-757 0XXX which blocks → CENTURYTEL GEM STATE INC-NV DBA CENTURYLINK - NV 4438 OWYHEE NV
— 775-758 not yet reported which blocks → RURAL TEL CO 2233 NORTH FORK NV
— 775-761 2XXX3XXX6XXX7XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ELY NV
— 775-762 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-764 2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 PAHRUMP NV
— 775-766 not yet reported which blocks → ONVOY, LLC - NV 029F LOVELOCK NV
— 775-770 0XXX4XXX8XXX · 2 holders which blocks → NEVADA BELL 9742 RENO NV
— 775-771 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-772 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-773 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEVADA BELL 9742 SCHURZ NV
— 775-776 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 MONTELLO NV
— 775-777 none assigned yet which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 ELKO NV
— 775-778 none assigned yet which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 ELKO NV
— 775-779 not yet reported which blocks → CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV 2354 RUBYVALLEY NV
— 775-781 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 GARDNERVL NV
— 775-782 not yet reported which blocks → FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 4421 GARDNERVL NV
— 775-783 5XXX which blocks → FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 4421 GARDNERVL NV
— 775-784 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-785 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-786 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-787 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-788 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-789 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-790 6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 GARDNERVL NV
— 775-793 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-796 not yet reported which blocks → ONVOY, LLC - NV 029F LOVELOCK NV
— 775-800 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - NV 029F RENO NV
— 775-806 not yet reported which blocks → ONVOY, LLC - NV 029F IMLAY NV
— 775-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 775-815 3XXX4XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-822 not yet reported which blocks → ONVOY, LLC - NV 029F SCHURZ NV
— 775-823 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-824 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-825 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-826 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-827 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-828 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-829 not yet reported which blocks → NEVADA BELL 9742 RENO NV
— 775-830 5XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-831 not yet reported which blocks → NEVADA BELL 9742 CRYSTALBAY NV
— 775-832 none assigned yet which blocks → NEVADA BELL 9742 CRYSTALBAY NV
— 775-833 2XXX3XXX7XXX8XXX · 4 holders which blocks → NEVADA BELL 9742 CRYSTALBAY NV
— 775-834 2XXX7XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NV 7376 RENO NV
— 775-835 1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 3 holders which blocks → NEVADA BELL 9742 FERNLEY NV
— 775-841 not yet reported which blocks → NEVADA BELL 9742 CARSONCITY NV
— 775-842 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 RENO NV
— 775-843 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
— 775-845 not yet reported which blocks → ONVOY, LLC - NV 029F LUND NV
— 775-846 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO 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.