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
973-986 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 NEWARK NJ
973-987 LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 MT VIEW NJ
973-988 LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 MT VIEW NJ
973-989 VERIZON NEW JERSEY, INC. 9206 DOVER NJ
973-990 VERIZON NEW JERSEY, INC. 9206 XXXXXXXXXX NJ
973-992 VERIZON NEW JERSEY, INC. 9206 LIVINGSTON NJ
973-993 VERIZON NEW JERSEY, INC. 9206 MORRISTOWN NJ
973-994 VERIZON NEW JERSEY, INC. 9206 LIVINGSTON NJ
973-995 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MT VIEW NJ
973-998 CABLEVISION LIGHTPATH, INC. - NJ 4948 MORRISTOWN NJ
973-999 VERIZON NEW JERSEY, INC. 9206 XXXXXXXXXX NJ
975-211 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-311 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-411 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-511 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-555 MULTIPLE OCN LISTING MULT DIR ASST MO
975-611 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-700 MO
975-711 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-811 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-911 MULTIPLE OCN LISTING MULT XXXXXXXXXX MO
975-950 MO
975-958 MO
975-959 MO
975-976 MO
978-201 OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
978-202 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CONCORD MA
978-203 PAETEC ITEL, LLC 829J WILMINGTON MA
978-204 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAWRENCE MA
978-205 BANDWIDTH.COM CLEC, LLC - MA 990E WILMINGTON MA
978-206 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ACTON MA
978-207 COMCAST IP PHONE, LLC 318J NO READING MA
978-209 BANDWIDTH.COM CLEC, LLC - MA 990E SUDBURY MA
978-211 MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
978-213 VERIZON NEW ENGLAND INC. 9102 TOPSFIELD MA
978-214 VERIZON NEW ENGLAND INC. 9102 ANDOVER MA
978-215 PAETEC ITEL, LLC 829J BILLERICA MA
978-218 TC SYSTEMS, INC. 7135 SUDBURY MA
978-220 VERIZON NEW ENGLAND INC. 9102 XXXXXXXXXX MA
978-222 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NO READING MA
978-223 PAETEC ITEL, LLC 829J DANVERS MA
978-224 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM MA
978-226 TC SYSTEMS, INC. 7135 TYNGSBORO MA
978-227 TC SYSTEMS, INC. 7135 LEOMINSTER MA
978-229 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WILMINGTON MA
978-230 METROPCS, INC. 5562 LEOMINSTER MA
978-231 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GLOUCESTER MA
978-232 VERIZON NEW ENGLAND INC. 9102 BEVERLY MA
978-233 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HAMILTON MA
978-234 LEVEL 3 COMMUNICATIONS, LLC - MA 4018 GEORGETOWN 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.