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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
978-358 TC SYSTEMS, INC. 7135 NEWBURYPT MA
978-359 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TOPSFIELD MA
978-361 OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
978-362 COMCAST IP PHONE, LLC 318J BILLERICA MA
978-363 VERIZON NEW ENGLAND INC. 9102 W NEWBURY MA
978-364 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LOWELL MA
978-365 VERIZON NEW ENGLAND INC. 9102 CLINTON MA
978-366 AMERICAN MESSAGING SERVICES, LLC 9748 SUDBURY MA
978-367 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-368 VERIZON NEW ENGLAND INC. 9102 CLINTON MA
978-369 VERIZON NEW ENGLAND INC. 9102 CONCORD MA
978-370 VERIZON NEW ENGLAND INC. 9102 NO READING MA
978-371 VERIZON NEW ENGLAND INC. 9102 CONCORD MA
978-372 VERIZON NEW ENGLAND INC. 9102 HAVERHILL MA
978-373 VERIZON NEW ENGLAND INC. 9102 HAVERHILL MA
978-374 VERIZON NEW ENGLAND INC. 9102 HAVERHILL MA
978-375 OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
978-376 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCE MA
978-377 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HAVERHILL MA
978-378 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 AMESBURY MA
978-379 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAWRENCE MA
978-380 PAETEC ITEL, LLC 829J IPSWICH MA
978-381 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 GLOUCESTER MA
978-382 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LAWRENCE MA
978-383 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TOWNSEND MA
978-384 TC SYSTEMS, INC. 7135 MERRIMAC MA
978-385 NORFOLK COUNTY INTERNET, INC. 6083 HARVARD MA
978-386 VERIZON NEW ENGLAND INC. 9102 ASHBY MA
978-388 VERIZON NEW ENGLAND INC. 9102 AMESBURY MA
978-389 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BERLIN MA
978-392 VERIZON NEW ENGLAND INC. 9102 WESTFORD MA
978-393 BANDWIDTH.COM CLEC, LLC - MA 990E ACTON MA
978-394 OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
978-395 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
978-396 PAETEC ITEL, LLC 829J NO READING MA
978-397 OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
978-398 PAETEC ITEL, LLC 829J LAWRENCE MA
978-402 TC SYSTEMS, INC. 7135 CONCORD MA
978-405 PAETEC ITEL, LLC 829J CONCORD MA
978-406 OMNIPOINT MIAMI E LICENSE, LLC 6889 DANVERS MA
978-407 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FITCHBURG MA
978-409 COMCAST IP PHONE, LLC 318J ANDOVER MA
978-410 PAETEC ITEL, LLC 829J GARDNER MA
978-411 MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
978-412 VERIZON NEW ENGLAND INC. 9102 IPSWICH MA
978-414 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM MA
978-415 PAETEC ITEL, LLC 829J BERLIN MA
978-416 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LAWRENCE MA
978-418 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LOWELL MA
978-421 TC SYSTEMS, INC. 7135 LOWELL 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.