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
2002-05-23 540-912 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BURNTCHMNY VA
2002-05-23 574-217 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SOUTH BEND IN
2002-05-23 580-812 pooled blocks → T-MOBILE USA, INC. 6529 MARIETTA OK
2002-05-23 614-643 blocks → PAETEC ITEL, LLC 829J COLUMBUS OH
2002-05-23 740-336 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARIETTA OH
2002-05-23 765-318 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARTINSVL IN
2002-05-23 765-585 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATTICA IN
2002-05-23 765-592 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKVILLE IN
2002-05-23 765-894 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LEBANON IN
2002-05-23 803-334 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JOHNSTON SC
2002-05-23 803-336 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EDGEFIELD SC
2002-05-23 810-746 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HARTLAND MI
2002-05-23 810-788 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 YALE MI
2002-05-23 812-701 blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON IN
2002-05-23 812-756 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VERSAILLES IN
2002-05-23 812-767 blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NO VERNON IN
2002-05-23 812-797 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEDFORD IN
2002-05-23 812-798 blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINTON IN
2002-05-23 812-820 blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SCOTTSBURG IN
2002-05-23 812-844 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALEM IN
2002-05-23 859-297 pooled blocks → PAETEC ITEL, LLC 829J VERSAILLES KY
2002-05-23 904-673 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2002-05-23 919-430 pooled blocks → SUNCOM DBA T-MOBILE USA 8645 DURHAM NC
2002-05-23 971-252 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - OR 3234 STFRD-SNDY OR
2002-05-22 217-715 blocks → NORTH COUNTY COMMUNICATION CORPORATION - CA 7894 LOVINGTON IL
2002-05-22 301-956 pooled blocks → VERIZON MARYLAND, INC. 9212 GAITHERSBG MD
2002-05-22 405-648 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ANADARKO OK
2002-05-22 678-779 blocks → POWERTEL ATLANTA LICENSES, INC. 7473 GAINESVL GA
2002-05-22 678-858 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 GAINESVL GA
2002-05-22 678-989 pooled blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 GAINESVL GA
2002-05-22 706-662 pooled blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBUS GA
2002-05-22 828-379 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BOONE NC
2002-05-22 845-323 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NEW CITY NY
2002-05-22 859-241 pooled blocks → PAETEC ITEL, LLC 829J NICHOLASVL KY
2002-05-21 308-615 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 CHADRON NE
2002-05-21 334-294 pooled blocks → METROPCS, INC. 5562 MONTGOMERY AL
2002-05-21 402-710 pooled blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 YORK NE
2002-05-21 616-890 pooled blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2002-05-21 646-296 pooled blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2002-05-21 651-341 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2002-05-21 708-699 pooled blocks → T-MOBILE USA, INC. 6529 LA GRANGE IL
2002-05-21 712-934 blocks → NORTHWEST IOWA TELEPHONE, LLC 1260 SERGENTBLF IA
2002-05-21 773-759 pooled blocks → T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2002-05-21 786-877 blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 MIAMI FL
2002-05-21 850-525 pooled blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 PENSACOLA FL
2002-05-21 918-718 pooled blocks → T-MOBILE USA, INC. 6529 TAHLEQUAH OK
2002-05-21 918-908 pooled blocks → T-MOBILE USA, INC. 6529 STROUD OK
2002-05-21 918-926 pooled blocks → T-MOBILE USA, INC. 6529 CHECOTAH OK
2002-05-20 224-653 pooled blocks → ILLINOIS BELL TEL CO 9329 ROSELLE IL
2002-05-20 229-796 pooled blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 OCILLA GA

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.