NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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, last 30 days
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
2002-09-18 774-273 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 EASTON MA
2002-09-18 774-274 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BROCKTON MA
2002-09-18 774-275 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SHREWSBURY MA
2002-09-18 774-276 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MILLBURY MA
2002-09-18 774-277 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MEDWAY MA
2002-09-18 774-278 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HOPKINTON MA
2002-09-18 774-279 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FRAMINGHAM MA
2002-09-18 774-280 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 E DOUGLAS MA
2002-09-18 908-774 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → AT&T - LOCAL 7421 UNIONVILLE NJ
2002-09-18 978-875 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HUDSON MA
2002-09-18 978-877 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GROTON MA
2002-09-18 985-210 none assigned yet which blocks → METROPCS, INC. 5562 LAPLACE LA
2002-09-17 240-286 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2002-09-17 248-860 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2002-09-17 248-953 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2002-09-17 250-290 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Golden —
2002-09-17 251-236 3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BREWTON AL
2002-09-17 260-237 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LIGONIER IN
2002-09-17 260-239 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ALBION IN
2002-09-17 269-535 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 THREERIVRS MI
2002-09-17 269-762 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 KALAMAZOO MI
2002-09-17 304-931 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WV 9944 CLARKSBURG WV
2002-09-17 304-932 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WV 9944 CHRLSTNZN1 WV
2002-09-17 304-933 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BRIDGEPORT WV
2002-09-17 304-944 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BERKELYSPG WV
2002-09-17 304-945 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WV 9944 CHRLSTNZN5 WV
2002-09-17 505-705 1XXX3XXX6XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ALBUQURQUE NM
2002-09-17 507-401 2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 MARSHALL MN
2002-09-17 513-359 not yet reported which blocks → SPOK, INC. 6630 CINCINNATI OH
2002-09-17 517-614 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LANSING MI
2002-09-17 520-236 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 SIERRAVIST AZ
2002-09-17 540-429 7XXX which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FREDECKSBG VA
2002-09-17 541-406 0–9 XXXall 10 · 4 holders which blocks → ZIPLY FIBER, LLC 0760 BAKER OR
2002-09-17 574-226 0XXX7XXX8XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2002-09-17 574-358 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 MIDDLEBURY IN
2002-09-17 614-516 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OHIO BELL TEL CO 9321 WORTHINGTN OH
2002-09-17 616-780 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2002-09-17 616-799 6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CEDAR SPG MI
2002-09-17 616-826 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2002-09-17 716-908 none assigned yet which blocks → METROPCS, INC. 5562 WILLIAMSVL NY
2002-09-17 716-909 none assigned yet which blocks → METROPCS, INC. 5562 TONAWANDA NY
2002-09-17 734-787 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BELLEVILLE MI
2002-09-17 740-294 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J COSHOCTON OH
2002-09-17 810-569 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
2002-09-17 810-751 1XXX2XXX3XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CAPAC MI
2002-09-17 810-790 7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IMLAY CITY MI
2002-09-17 812-586 2XXX3XXX8XXX9XXX · 2 holders which blocks → BLUERIVER COMMUNICATIONS, INC. - IN 8943 SALEM IN
2002-09-17 812-791 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BLUERIVER COMMUNICATIONS, INC. - IN 8943 ORLEANS IN
2002-09-17 928-230 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2002-09-17 928-852 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 SEDONA AZ

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.