NumberResearch Membership · Data 09/24/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 308
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 54
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2024-09-11 308-331 0XXX1XXX3XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 FULLERTON NE
2022-08-08 308-466 1XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 FRANKLIN NE
2020-08-25 308-330 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 NO PLATTE NE
2018-11-07 308-231 0XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SUTHERLAND NE
2016-02-29 308-299 0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 HYANNIS NE
2011-06-21 308-482 0XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 CLARKS NE
2011-02-14 308-339 8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GRAND IS NE
2006-04-18 308-566 1XXX2XXX5XXX7XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 CHAPPELL NE
2006-01-27 308-655 1XXX2XXX3XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ARAPAHOE NE
2005-09-30 308-765 3XXX4XXX5XXX6XXX7XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SCOTSBLUFF NE
2004-05-18 308-201 1XXX2XXX3XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ERICSON NE
2004-05-18 308-202 7XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ARCADIA NE
2004-05-18 308-212 1XXX2XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ANSLEY NE
2004-05-18 308-214 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 TAYLOR NE
2004-05-18 308-215 1XXX2XXX5XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SARGENT NE
2004-05-18 308-216 2XXX3XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SHELTON NE
2004-05-18 308-219 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 NORTH LOUP NE
2004-02-06 308-293 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 KEARNEY NE
2004-01-27 308-241 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 KIMBALL NE
2003-08-26 308-222 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 MILLER NE
2003-08-26 308-223 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GREELEY NE
2002-05-23 308-660 7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 NO PLATTE NE
2002-05-23 308-672 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SCOTSBLUFF NE
2002-05-23 308-746 5XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LEXINGTON NE
2002-05-21 308-615 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 CHADRON NE
2002-05-20 308-737 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 MCCOOK NE
2002-04-25 308-627 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 KEARNEY NE
— 308-249 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SIDNEY NE
— 308-279 4XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 BRIDGEPORT NE
— 308-289 7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OGALLALA NE
— 308-325 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LEXINGTON NE
— 308-340 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 MCCOOK NE
— 308-360 5XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GORDON NE
— 308-379 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GRAND IS NE
— 308-380 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GRAND IS NE
— 308-390 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GRAND IS NE
— 308-430 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 CHADRON NE
— 308-440 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 KEARNEY NE
— 308-470 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 FRANKLIN NE
— 308-520 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 NO PLATTE NE
— 308-529 4XXX5XXX6XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GOTHENBURG NE
— 308-530 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 NO PLATTE NE
— 308-550 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 FULLERTON NE
— 308-631 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SCOTSBLUFF NE
— 308-641 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SCOTSBLUFF NE
— 308-730 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ORD NE
— 308-750 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ST PAUL NE
— 308-760 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 ALLIANCE NE
— 308-830 4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 MINDEN NE
— 308-850 2XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 GRAND IS NE

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.