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. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

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
2023-09-13 516-646 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2023-09-13 628-294 NEW CINGULAR WIRELESS PCS, LLC 6010 NOVATO CA
2023-09-13 641-359 COMMIO, LLC 939H IOWA FALLS IA
2023-09-13 657-690 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-13 659-278 ONVOY, LLC - AL 604E BIRMINGHAM AL
2023-09-13 737-325 ONVOY, LLC - TX 903C AUSTIN TX
2023-09-13 753-508 Iristel Inc. 154E Kingston —
2023-09-13 753-509 Iristel Inc. 154E Kingston —
2023-09-13 914-601 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN09 NY
2023-09-13 914-604 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WSCHSTZN01 NY
2023-09-12 219-347 COMMIO, LLC 939H ROLLNGPRRI IN
2023-09-12 223-324 ONVOY, LLC - PA 547E MERCERSBG PA
2023-09-12 223-326 ONVOY, LLC - PA 547E WAYNESBORO PA
2023-09-12 223-327 ONVOY, LLC - PA 547E HARISBGZN2 PA
2023-09-12 223-328 ONVOY, LLC - PA 547E THOMPSONTN PA
2023-09-12 223-329 ONVOY, LLC - PA 547E FRYSTOWN PA
2023-09-12 223-330 ONVOY, LLC - PA 547E NEWHOLLAND PA
2023-09-12 223-331 ONVOY, LLC - PA 547E ADAMSTOWN PA
2023-09-12 223-335 ONVOY, LLC - PA 547E MANHEIM PA
2023-09-12 223-337 ONVOY, LLC - PA 547E NEEDMORE PA
2023-09-12 267-835 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2023-09-12 272-343 ONVOY, LLC - PA 547E MILFORD PA
2023-09-12 352-808 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WILDWOOD FL
2023-09-12 412-796 ONVOY, LLC - PA 547E PTGSBNZN11 PA
2023-09-12 412-873 ONVOY, LLC - PA 547E PTTSBGZON6 PA
2023-09-12 412-895 ONVOY, LLC - PA 547E PTGSBNZN13 PA
2023-09-12 434-350 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANVILLE VA
2023-09-12 458-308 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PENDLETON OR
2023-09-12 478-384 LEVEL 3 COMMUNICATIONS, LLC - GA 6116 KITE GA
2023-09-12 478-385 LEVEL 3 COMMUNICATIONS, LLC - GA 6116 ADRIAN GA
2023-09-12 540-571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 FREDECKSBG VA
2023-09-12 567-425 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANSFIELD OH
2023-09-12 571-202 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 HERNDON VA
2023-09-12 571-240 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERNDON VA
2023-09-12 574-317 COMMIO, LLC 939H BRISTOL IN
2023-09-12 582-254 ONVOY, LLC - PA 547E MILLPORT PA
2023-09-12 657-687 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-12 657-689 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CYPRESS CA
2023-09-12 672-341 Iristel Inc. 154E Victoria —
2023-09-12 672-342 Iristel Inc. 154E Victoria —
2023-09-12 681-430 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOGAN WV
2023-09-12 682-420 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLEBURNE TX
2023-09-12 730-209 ONVOY, LLC 224C BRUSSELS IL
2023-09-12 730-210 ONVOY, LLC 224C BELLMONT IL
2023-09-12 730-212 ONVOY, LLC 224C INA IL
2023-09-12 730-213 ONVOY, LLC 224C KELL IL
2023-09-12 730-214 ONVOY, LLC 224C KINMUNDY IL
2023-09-12 730-215 ONVOY, LLC 224C MULBRY GRV IL
2023-09-12 730-216 ONVOY, LLC 224C PATOKA IL
2023-09-12 730-217 ONVOY, LLC 224C SHATTUC IL

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.