NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

369 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026

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 37
NEW CINGULAR WIRELESS PCS, LLC - IL 33
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - TX 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
2001-05-08 978-696 PAETEC ITEL, LLC 829J FITCHBURG MA
2001-05-08 978-727 PAETEC ITEL, LLC 829J WESTFORD MA
2001-05-08 978-888 PAETEC ITEL, LLC 829J LOWELL MA
2001-05-08 985-264 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MANDEVILLE LA
2001-05-08 985-285 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SLIDELL LA
2001-05-08 985-290 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SLIDELL LA
2001-05-08 985-630 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MANDEVILLE LA
2001-05-08 985-640 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SLIDELL LA
2001-05-07 318-349 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 SHREVEPORT LA
2001-05-07 361-226 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 ARANSSPASS TX
2001-05-07 605-306 CLARITY TELECOM, LLC DBA BLUEPEAK 7024 SIOUX FLS SD
2001-05-07 636-253 T-MOBILE USA, INC. 6529 HIGH RIDGE MO
2001-05-07 636-259 T-MOBILE USA, INC. 6529 GRAYSUMMIT MO
2001-05-07 636-633 T-MOBILE USA, INC. 6529 IMPERIAL MO
2001-05-07 662-452 CENTURYLINK COMMUNICATIONS, LLC 508J INDIANOLA MS
2001-05-07 678-361 METROPCS, INC. 5562 ATLANTA NE GA
2001-05-07 678-520 METROPCS, INC. 5562 ATLANTA NE GA
2001-05-07 678-521 METROPCS, INC. 5562 ATLANTA NE GA
2001-05-07 678-522 METROPCS, INC. 5562 ATLANTA NE GA
2001-05-07 678-523 METROPCS, INC. 5562 ATLANTA NE GA
2001-05-07 678-524 METROPCS, INC. 5562 ATLANTA NE GA
2001-05-07 786-232 LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PERRINE FL
2001-05-07 812-310 FRONTIER NORTH, INC. - IN 0779 FARMERSBG IN
2001-05-07 812-313 FRONTIER NORTH, INC. - IN 0779 HANOVER IN
2001-05-07 812-404 METROPCS, INC. 5562 SALEM IN
2001-05-07 812-407 ONVOY, LLC - IN 097D PETERSBURG IN
2001-05-07 812-408 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 REDDINGTON IN
2001-05-07 812-409 ONVOY, LLC - IN 097D FREELANDVL IN
2001-05-07 812-412 ONVOY, LLC - IN 097D FAIRBANKS IN
2001-05-07 812-413 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 AUSTIN IN
2001-05-07 812-415 ONVOY, LLC - IN 097D WHEATLAND IN
2001-05-07 812-420 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 BRAZIL IN
2001-05-07 812-501 FRONTIER NORTH, INC. - IN 0779 GEORGETOWN IN
2001-05-07 812-502 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 BICKNELL IN
2001-05-07 812-503 AT&T ENTERPRISES, LLC 516C CHARLESTN IN
2001-05-07 812-504 PAETEC ITEL, LLC 829J HAYSVILLE IN
2001-05-07 812-506 PAETEC ITEL, LLC 829J PATOKA IN
2001-05-07 812-507 PAETEC ITEL, LLC 829J ENGLISH IN
2001-05-07 812-508 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEDFORD IN
2001-05-07 812-512 LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LINTON IN
2001-05-07 863-455 MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 LAKE WALES FL
2001-05-07 903-228 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 GUNTER TX
2001-05-07 903-689 LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SULPHURSPG TX
2001-05-07 917-213 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2001-05-07 917-214 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2001-05-07 917-257 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2001-05-07 917-293 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2001-05-07 917-294 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2001-05-07 917-330 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2001-05-07 917-348 OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.