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
978-605 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DANVERS MA
978-606 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LOWELL MA
978-608 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BILLERICA MA
978-611 MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
978-612 PAETEC ITEL, LLC 829J CLINTON MA
978-613 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PETERSHAM MA
978-614 TC SYSTEMS, INC. 7135 LOWELL MA
978-615 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 AYER MA
978-618 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 HUDSON MA
978-619 PAETEC ITEL, LLC 829J SALEM MA
978-620 PAETEC ITEL, LLC 829J LAWRENCE MA
978-621 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ACTON MA
978-622 BANDWIDTH.COM CLEC, LLC - MA 990E BILLERICA MA
978-623 VERIZON NEW ENGLAND INC. 9102 ANDOVER MA
978-624 PAETEC ITEL, LLC 829J DANVERS MA
978-625 VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
978-626 COMCAST IP PHONE, LLC 318J HAMILTON MA
978-628 NORFOLK COUNTY INTERNET, INC. 6083 TEMPLETON MA
978-629 BANDWIDTH.COM CLEC, LLC - MA 990E BILLERICA MA
978-630 VERIZON NEW ENGLAND INC. 9102 GARDNER MA
978-631 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ACTON MA
978-632 VERIZON NEW ENGLAND INC. 9102 GARDNER MA
978-633 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ORANGE MA
978-634 COMCAST IP PHONE, LLC 318J BOLTON MA
978-635 VERIZON NEW ENGLAND INC. 9102 ACTON MA
978-636 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BARRE MA
978-637 AT&T - LOCAL 7421 MAYNARD MA
978-638 AMERICAN MESSAGING SERVICES, LLC 9748 CONCORD MA
978-639 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SUDBURY MA
978-640 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-642 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILMINGTON MA
978-645 TC SYSTEMS, INC. 7135 LAWRENCE MA
978-646 VERIZON NEW ENGLAND INC. 9102 DANVERS MA
978-647 PAETEC ITEL, LLC 829J TOPSFIELD MA
978-648 PAETEC ITEL, LLC 829J MAYNARD MA
978-649 VERIZON NEW ENGLAND INC. 9102 TYNGSBORO MA
978-651 PAETEC ITEL, LLC 829J LAWRENCE MA
978-653 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HAMILTON MA
978-654 PAETEC ITEL, LLC 829J LOWELL MA
978-655 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAWRENCE MA
978-656 VERIZON NEW ENGLAND INC. 9102 LOWELL MA
978-657 VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
978-658 VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
978-659 VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
978-661 VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
978-662 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ANDOVER MA
978-663 VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
978-664 VERIZON NEW ENGLAND INC. 9102 NO READING MA
978-665 VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
978-666 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SALEM 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.