NumberResearch Membership · Data 2026-04

Recent prefix assignments

369 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04

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
978-479 OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
978-480 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 TOWNSEND MA
978-481 PAETEC ITEL, LLC 829J PRINCETON MA
978-482 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ANDOVER MA
978-484 PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F ROWLEY MA
978-485 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SALEM MA
978-486 VERIZON NEW ENGLAND INC. 9102 LITTLETON MA
978-487 TC SYSTEMS, INC. 7135 AYER MA
978-488 BANDWIDTH.COM CLEC, LLC - MA 990E BILLERICA MA
978-489 OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
978-491 PAETEC ITEL, LLC 829J GLOUCESTER MA
978-492 NORFOLK COUNTY INTERNET, INC. 6083 LOWELL MA
978-493 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MAYNARD MA
978-494 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANDOVER MA
978-497 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-498 TC SYSTEMS, INC. 7135 SALEM MA
978-499 VERIZON NEW ENGLAND INC. 9102 NEWBURYPT MA
978-502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FITCHBURG MA
978-503 TC SYSTEMS, INC. 7135 FITCHBURG MA
978-504 OMNIPOINT MIAMI E LICENSE, LLC 6889 AMESBURY MA
978-506 ONVOY, LLC - MA 892D LITTLETON MA
978-507 VERIZON NEW ENGLAND INC. 9102 SUDBURY MA
978-509 METROPCS, INC. 5562 LAWRENCE MA
978-510 COMCAST IP PHONE, LLC 318J W NEWBURY MA
978-511 MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
978-513 PAETEC ITEL, LLC 829J LOWELL MA
978-514 VERIZON NEW ENGLAND INC. 9102 LEOMINSTER MA
978-515 PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F GLOUCESTER MA
978-516 PAETEC ITEL, LLC 829J FITCHBURG MA
978-518 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NEWBURYPT MA
978-521 VERIZON NEW ENGLAND INC. 9102 HAVERHILL MA
978-522 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEVERLY MA
978-523 TC SYSTEMS, INC. 7135 TOWNSEND MA
978-524 VERIZON NEW ENGLAND INC. 9102 BEVERLY MA
978-525 VERIZON NEW ENGLAND INC. 9102 MANCHESTER MA
978-526 VERIZON NEW ENGLAND INC. 9102 MANCHESTER MA
978-527 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WILMINGTON MA
978-528 PAETEC ITEL, LLC 829J BILLERICA MA
978-529 ONVOY, LLC - MA 892D BEVERLY MA
978-530 VERIZON NEW ENGLAND INC. 9102 PEABODY MA
978-531 VERIZON NEW ENGLAND INC. 9102 PEABODY MA
978-532 VERIZON NEW ENGLAND INC. 9102 PEABODY MA
978-533 PAETEC ITEL, LLC 829J ANDOVER MA
978-534 VERIZON NEW ENGLAND INC. 9102 LEOMINSTER MA
978-535 VERIZON NEW ENGLAND INC. 9102 PEABODY MA
978-536 VERIZON NEW ENGLAND INC. 9102 PEABODY MA
978-537 VERIZON NEW ENGLAND INC. 9102 LEOMINSTER MA
978-538 VERIZON NEW ENGLAND INC. 9102 PEABODY MA
978-539 TC SYSTEMS, INC. 7135 DANVERS MA
978-540 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LITTLETON MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.