NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

355 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)

Which carriers received which NPA-NXX prefixes, and where. A single prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are often split across different carriers — use the blocks link on any row (or the thousands-block view above) to see which carrier holds which block. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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-NXXAssigneeOCNRate centerState
2002-05-29 330-662 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MEDINA OH
2002-05-29 336-846 blocks → SKYBEST COMMUNICATIONS, INC. - NC 9539 WJEFFERSON NC
2002-05-29 402-705 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 HASTINGS NE
2002-05-29 405-592 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 HOLDENVL OK
2002-05-29 405-716 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SEMINOLE OK
2002-05-29 715-512 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 THORP WI
2002-05-29 774-258 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORTHBORO MA
2002-05-29 845-671 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NANUET NY
2002-05-29 850-879 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TALLAHASSE FL
2002-05-29 908-302 blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 UNIONVILLE NJ
2002-05-29 908-592 blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 CRANFORD NJ
2002-05-29 908-734 pooled blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 PEAPACK NJ
2002-05-29 908-836 pooled blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 PHILLIPSBG NJ
2002-05-29 908-871 blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 SUMMIT NJ
2002-05-29 908-929 blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 ELIZABETH NJ
2002-05-29 908-981 pooled blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 SOMERVILLE NJ
2002-05-29 910-468 blocks → READY TELECOM, INC. - NC 5307 TROY NC
2002-05-29 989-449 pooled blocks → WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 0127 ITHACA MI
2002-05-28 757-753 blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN1 VA
2002-05-28 901-597 blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MEMPHIS TN
2002-05-28 913-314 pooled blocks → AERIAL COMMUNICATIONS, INC. 6701 KANSASCITY KS
2002-05-28 919-725 pooled blocks → UNITED STATES CELLULAR - NC 6282 OXFORD NC
2002-05-28 919-726 pooled blocks → UNITED STATES CELLULAR - NC 6282 PITTSBORO NC
2002-05-28 919-727 pooled blocks → UNITED STATES CELLULAR - NC 6282 LOUISBURG NC
2002-05-28 920-327 pooled blocks → WISCONSIN BELL INC 9327 GREEN BAY WI
2002-05-28 937-570 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PIQUA OH
2002-05-24 306-991 blocks → Rogers Communications Canada Inc. (Wireless) 8821 Esterhazy —
2002-05-24 317-437 blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2002-05-24 405-683 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEWOKA OK
2002-05-24 507-440 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 AUSTIN MN
2002-05-24 519-779 blocks → Persona Communications Inc. 8202 Aylmer —
2002-05-24 562-842 pooled blocks → T-MOBILE USA, INC. 6529 PICORIVERA CA
2002-05-24 757-513 blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2002-05-24 780-504 blocks → Bell Mobility 6574 Edmonton —
2002-05-23 231-480 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LUDINGTON MI
2002-05-23 248-930 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2002-05-23 260-301 pooled blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 DECATUR IN
2002-05-23 260-302 pooled blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 KENDALLVL IN
2002-05-23 260-307 pooled blocks → METROPCS, INC. 5562 BLUFFTON IN
2002-05-23 260-918 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FORT WAYNE IN
2002-05-23 308-660 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 NO PLATTE NE
2002-05-23 308-672 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 SCOTSBLUFF NE
2002-05-23 308-746 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LEXINGTON NE
2002-05-23 315-883 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SYRACUSE NY
2002-05-23 316-727 pooled blocks → T-MOBILE USA, INC. 6529 NEWTON KS
2002-05-23 317-364 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHELBYVL IN
2002-05-23 405-589 pooled blocks → T-MOBILE USA, INC. 6529 CHANDLER OK
2002-05-23 434-632 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 EMPORIA VA
2002-05-23 504-303 pooled blocks → AT&T - LOCAL 7421 KENNER LA
2002-05-23 508-413 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PROVINCETN MA

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.