NumberResearch Membership · Data 2026-04

Recent prefix assignments

380 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
978-284 VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
978-285 ONVOY, LLC - MA 892D PETERSHAM MA
978-287 VERIZON NEW ENGLAND INC. 9102 CONCORD MA
978-291 PAETEC ITEL, LLC 829J LAWRENCE MA
978-292 VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
978-293 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HUDSON MA
978-294 VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
978-295 BANDWIDTH.COM CLEC, LLC - MA 990E SUDBURY MA
978-296 PAETEC ITEL, LLC 829J ANDOVER MA
978-297 VERIZON NEW ENGLAND INC. 9102 WINCHENDON MA
978-298 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MAYNARD MA
978-299 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEVERLY MA
978-301 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PETERSHAM MA
978-303 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WESTFORD MA
978-304 COMCAST IP PHONE, LLC 318J DANVERS MA
978-306 PAETEC ITEL, LLC 829J SALEM MA
978-308 PAETEC ITEL, LLC 829J W NEWBURY MA
978-310 TC SYSTEMS, INC. 7135 HUDSON MA
978-311 MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
978-312 COMCAST IP PHONE, LLC 318J IPSWICH MA
978-313 TC SYSTEMS, INC. 7135 BILLERICA MA
978-314 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LAWRENCE MA
978-315 PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WILMINGTON MA
978-316 AMERICAN MESSAGING SERVICES, LLC 9748 CONCORD MA
978-318 VERIZON NEW ENGLAND INC. 9102 CONCORD MA
978-319 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LOWELL MA
978-322 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-323 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-324 NORFOLK COUNTY INTERNET, INC. 6083 ORANGE MA
978-325 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLOUCESTER MA
978-326 TC SYSTEMS, INC. 7135 PEABODY MA
978-327 PAETEC ITEL, LLC 829J LAWRENCE MA
978-328 TC SYSTEMS, INC. 7135 LOWELL MA
978-329 VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
978-330 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BILLERICA MA
978-331 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MAYNARD MA
978-333 OMNIPOINT MIAMI E LICENSE, LLC 6889 HUDSON MA
978-334 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GARDNER MA
978-335 OMNIPOINT MIAMI E LICENSE, LLC 6889 DANVERS MA
978-336 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM MA
978-337 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LOWELL MA
978-338 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEVERLY MA
978-339 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LITTLETON MA
978-340 VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
978-341 TERRA NOVA TELECOM INC. 145J CONCORD MA
978-342 VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
978-343 VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
978-345 VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
978-346 VERIZON NEW ENGLAND INC. 9102 MERRIMAC MA
978-348 VERIZON NEW ENGLAND INC. 9102 FITCHBURG 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.