NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

366 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. 37
ONVOY, LLC - CA 35
NEW CINGULAR WIRELESS PCS, LLC - IL 33
NEW CINGULAR WIRELESS PCS, LLC - DC 27
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
978-743 PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F PEPPERELL MA
978-744 VERIZON NEW ENGLAND INC. 9102 SALEM MA
978-745 VERIZON NEW ENGLAND INC. 9102 SALEM MA
978-746 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LOWELL MA
978-747 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAWRENCE MA
978-748 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 TYNGSBORO MA
978-749 VERIZON NEW ENGLAND INC. 9102 ANDOVER MA
978-750 VERIZON NEW ENGLAND INC. 9102 DANVERS MA
978-752 PAETEC ITEL, LLC 829J WILMINGTON MA
978-753 TC SYSTEMS, INC. 7135 WILMINGTON MA
978-754 BARR TELL USA, INC. - MA 732H GARDNER MA
978-755 PAETEC ITEL, LLC 829J TOWNSEND MA
978-756 PAETEC ITEL, LLC 829J PETERSHAM MA
978-757 PAETEC ITEL, LLC 829J AYER MA
978-758 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LOWELL MA
978-759 ONVOY, LLC - MA 892D CONCORD MA
978-762 VERIZON NEW ENGLAND INC. 9102 DANVERS MA
978-765 TC SYSTEMS, INC. 7135 CLINTON MA
978-768 VERIZON NEW ENGLAND INC. 9102 ESSEX MA
978-771 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LAWRENCE MA
978-772 VERIZON NEW ENGLAND INC. 9102 AYER MA
978-773 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ANDOVER MA
978-774 VERIZON NEW ENGLAND INC. 9102 DANVERS MA
978-775 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ANDOVER MA
978-776 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 CONCORD MA
978-777 VERIZON NEW ENGLAND INC. 9102 DANVERS MA
978-778 TC SYSTEMS, INC. 7135 BEVERLY MA
978-779 VERIZON NEW ENGLAND INC. 9102 BOLTON MA
978-780 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ATHOL MA
978-782 NORFOLK COUNTY INTERNET, INC. 6083 NEWBURYPT MA
978-784 VERIZON NEW ENGLAND INC. 9102 AYER MA
978-786 BANDWIDTH.COM CLEC, LLC - MA 990E LEOMINSTER MA
978-787 VERIZON NEW ENGLAND INC. 9102 BEVERLY MA
978-788 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-789 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-791 PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F DANVERS MA
978-792 TC SYSTEMS, INC. 7135 AMESBURY MA
978-794 VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
978-795 TC SYSTEMS, INC. 7135 ACTON MA
978-796 VERIZON NEW ENGLAND INC. 9102 AYER MA
978-799 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WESTFORD MA
978-803 BANDWIDTH.COM CLEC, LLC - MA 990E CONCORD MA
978-805 TC SYSTEMS, INC. 7135 LOWELL MA
978-806 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ANDOVER MA
978-807 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LAWRENCE MA
978-808 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BILLERICA MA
978-811 MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
978-812 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 TOWNSEND MA
978-814 VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
978-815 OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA

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.