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

Recent NPA-NXX prefix assignments
NPA-NXX	Assignee	OCN	Rate center	State
978-816	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	BEVERLY	MA
978-817	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	PEABODY	MA
978-818	PAETEC ITEL, LLC	829J	PEABODY	MA
978-819	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	W NEWBURY	MA
978-820	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	HUBBARDSTN	MA
978-821	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BILLERICA	MA
978-823	VERIZON NEW ENGLAND INC.	9102	MAYNARD	MA
978-824	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ANDOVER	MA
978-825	VERIZON NEW ENGLAND INC.	9102	SALEM	MA
978-826	PAETEC ITEL, LLC	829J	PEABODY	MA
978-827	VERIZON NEW ENGLAND INC.	9102	ASHBURNHAM	MA
978-828	METROPCS, INC.	5562	LAWRENCE	MA
978-829	PAETEC ITEL, LLC	829J	FITCHBURG	MA
978-832	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	SALEM	MA
978-834	VERIZON NEW ENGLAND INC.	9102	AMESBURY	MA
978-835	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	LAWRENCE	MA
978-837	VERIZON NEW ENGLAND INC.	9102	LAWRENCE	MA
978-838	VERIZON NEW ENGLAND INC.	9102	BERLIN	MA
978-839	PAETEC ITEL, LLC	829J	PEABODY	MA
978-840	VERIZON NEW ENGLAND INC.	9102	LEOMINSTER	MA
978-841	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	MAYNARD	MA
978-842	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	GROTON	MA
978-843	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	STERLING	MA
978-845	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	NO READING	MA
978-847	PAETEC ITEL, LLC	829J	LEOMINSTER	MA
978-848	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	LOWELL	MA
978-849	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ACTON	MA
978-850	LEAP TELECOM, LLC	616J	WESTFORD	MA
978-851	VERIZON NEW ENGLAND INC.	9102	LOWELL	MA
978-852	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	LAWRENCE	MA
978-853	METROPCS, INC.	5562	LAWRENCE	MA
978-854	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	PEABODY	MA
978-856	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	LOWELL	MA
978-857	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	LAWRENCE	MA
978-858	VERIZON NEW ENGLAND INC.	9102	LOWELL	MA
978-859	BANDWIDTH.COM CLEC, LLC - MA	990E	CONCORD	MA
978-861	ONVOY, LLC - MA	892D	TOPSFIELD	MA
978-862	PAETEC ITEL, LLC	829J	AYER	MA
978-863	VERIZON NEW ENGLAND INC.	9102	LOWELL	MA
978-864	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	W NEWBURY	MA
978-865	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	GLOUCESTER	MA
978-867	PAETEC ITEL, LLC	829J	BEVERLY	MA
978-869	METROPCS, INC.	5562	LAWRENCE	MA
978-870	PAETEC ITEL, LLC	829J	LEOMINSTER	MA
978-874	VERIZON NEW ENGLAND INC.	9102	WESTMINSTR	MA
978-878	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	FITCHBURG	MA
978-879	PAETEC ITEL, LLC	829J	GLOUCESTER	MA
978-880	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	DANVERS	MA
978-881	PAETEC ITEL, LLC	829J	ACTON	MA
978-882	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	DANVERS	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.