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
2002-04-23 740-299 ONVOY, LLC - OH 464C CLARINGTON OH
2002-04-23 740-301 PEERLESS NETWORK OF OHIO, LLC - OH 284F RIO GRANDE OH
2002-04-23 740-303 ONVOY, LLC - OH 464C PHILO OH
2002-04-23 740-306 ONVOY, LLC - OH 464C GUYAN OH
2002-04-23 740-307 FIRST COMMUNICATIONS, LLC 460K IRONTON OH
2002-04-23 740-309 ONVOY, LLC - OH 464C BARNESVL OH
2002-04-23 740-313 FIRST COMMUNICATIONS, LLC 460K WSNGTNCTHS OH
2002-04-23 740-315 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BELPRE OH
2002-04-23 740-318 ONVOY, LLC - OH 464C SUGARGROVE OH
2002-04-23 740-337 ONVOY, LLC - OH 464C TORONTO OH
2002-04-23 740-402 ONVOY, LLC - OH 464C CONESVILLE OH
2002-04-23 740-419 ONVOY, LLC - OH 464C MILLEDGEVL OH
2002-04-23 740-434 FIRST COMMUNICATIONS, LLC 460K MARIETTA OH
2002-04-23 740-470 ONVOY, LLC - OH 464C SEDALIA OH
2002-04-23 740-471 TWC IP ENABLED SERVICES, LLC 793K BLOOMINGBG OH
2002-04-23 740-488 ONVOY, LLC - OH 464C JEFFERSNVL OH
2002-04-23 740-518 ONVOY, LLC - OH 464C DRESDEN OH
2002-04-23 740-530 ONVOY, LLC - OH 464C DUFFY OH
2002-04-23 740-539 FIRST COMMUNICATIONS, LLC 460K LANCASTER OH
2002-04-23 740-563 ONVOY, LLC - OH 464C MINGO JCT OH
2002-04-23 740-580 ONVOY, LLC - OH 464C SHAWNEE OH
2002-04-23 740-610 FIRST COMMUNICATIONS, LLC 460K COSHOCTON OH
2002-04-23 740-660 ONVOY, LLC - OH 464C ARABIA OH
2002-04-23 740-661 ONVOY, LLC - OH 464C FULTONHAM OH
2002-04-23 740-693 ONVOY, LLC - OH 464C WLAFAYETTE OH
2002-04-23 740-720 ONVOY, LLC - OH 464C NEWHOLLAND OH
2002-04-23 740-721 ONVOY, LLC - OH 464C NEWLXINGTN OH
2002-04-23 740-761 ONVOY, LLC - OH 464C BETHESDA OH
2002-04-23 740-786 ONVOY, LLC - OH 464C SOMERTON OH
2002-04-23 740-794 FIRST COMMUNICATIONS, LLC 460K GALLIPOLIS OH
2002-04-23 740-806 ONVOY, LLC - OH 464C CHESHIRE OH
2002-04-23 740-807 ONVOY, LLC - OH 464C NEWMTMORAS OH
2002-04-23 740-836 LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SOMERSET OH
2002-04-23 740-841 ONVOY, LLC - OH 464C NEWPORT OH
2002-04-23 740-847 ONVOY, LLC - OH 464C THORNVILLE OH
2002-04-23 740-875 ONVOY, LLC - OH 464C VINTON OH
2002-04-23 740-891 FIRST COMMUNICATIONS, LLC 460K ZANESVILLE OH
2002-04-23 740-910 FIRST COMMUNICATIONS, LLC 460K LONDON OH
2002-04-23 740-923 ONVOY, LLC - OH 464C NORWICH OH
2002-04-23 740-996 FIRST COMMUNICATIONS, LLC 460K STEUBENVL OH
2002-04-23 740-997 FIRST COMMUNICATIONS, LLC 460K BEALLSVL OH
2002-04-23 740-999 ONVOY, LLC - OH 464C CORNING OH
2002-04-23 787-436 LIBERTY MOBILE PUERTO RICO INC. 639J CAGUAS PR
2002-04-23 810-420 LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MARINECITY MI
2002-04-23 810-531 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 PORT HURON MI
2002-04-23 810-625 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
2002-04-23 859-509 METROPCS, INC. 5562 LEXINGTON KY
2002-04-23 860-933 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WILLIMNTIC CT
2002-04-23 860-966 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2002-04-23 860-967 LEVEL 3 COMMUNICATIONS, LLC - CT 4800 HARTFORD CT

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.