Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 978

VERIZON NEW ENGLAND INC. 221

PAETEC ITEL, LLC 90

LEVEL 3 COMMUNICATIONS, LLC - MA 86

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 71

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 59

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
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	978-720	7XXX8XXX9XXX · 3 holders which blocks →	TC SYSTEMS, INC.	7135	BEVERLY	MA
—	978-721	4XXX5XXX6XXX8XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	ATHOL	MA
—	978-722	4XXX5XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	LAWRENCE	MA
—	978-723	0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	AT&T - LOCAL	7421	MAYNARD	MA
—	978-724	1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	VERIZON NEW ENGLAND INC.	9102	PETERSHAM	MA
—	978-725	none assigned yet which blocks →	VERIZON NEW ENGLAND INC.	9102	LAWRENCE	MA
—	978-728	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	LEOMINSTER	MA
—	978-729	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BILLERICA	MA
—	978-730	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 9 holders which blocks →	TC SYSTEMS, INC.	7135	GARDNER	MA
—	978-731	0XXX1XXX9XXX · 2 holders which blocks →	VERIZON NEW ENGLAND INC.	9102	WESTMINSTR	MA
—	978-732	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	TC SYSTEMS, INC.	7135	GROTON	MA
—	978-733	0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	CLINTON	MA
—	978-734	2XXX3XXX4XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MA	990E	CONCORD	MA
—	978-737	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WILMINGTON	MA
—	978-738	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	LAWRENCE	MA
—	978-739	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	DANVERS	MA
—	978-740	7XXX which blocks →	VERIZON NEW ENGLAND INC.	9102	SALEM	MA
—	978-741	6XXX which blocks →	VERIZON NEW ENGLAND INC.	9102	SALEM	MA
—	978-742	0XXX3XXX5XXX · 3 holders which blocks →	VERIZON NEW ENGLAND INC.	9102	LITTLETON	MA
—	978-743	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks →	PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA	268F	PEPPERELL	MA
—	978-744	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	SALEM	MA
—	978-745	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	SALEM	MA
—	978-746	0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	LOWELL	MA
—	978-747	3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	LAWRENCE	MA
—	978-748	0–9 XXXall 10 · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	TYNGSBORO	MA
—	978-749	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	ANDOVER	MA
—	978-750	3XXX which blocks →	VERIZON NEW ENGLAND INC.	9102	DANVERS	MA
—	978-752	none assigned yet which blocks →	PAETEC ITEL, LLC	829J	WILMINGTON	MA
—	978-753	8XXX which blocks →	TC SYSTEMS, INC.	7135	WILMINGTON	MA
—	978-754	0–9 XXXall 10 · 7 holders which blocks →	BARR TELL USA, INC. - MA	732H	GARDNER	MA
—	978-755	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	TOWNSEND	MA
—	978-756	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	PETERSHAM	MA
—	978-757	0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks →	PAETEC ITEL, LLC	829J	AYER	MA
—	978-758	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	LOWELL	MA
—	978-759	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - MA	892D	CONCORD	MA
—	978-762	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	DANVERS	MA
—	978-765	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks →	TC SYSTEMS, INC.	7135	CLINTON	MA
—	978-768	1XXX2XXX5XXX8XXX · 4 holders which blocks →	VERIZON NEW ENGLAND INC.	9102	ESSEX	MA
—	978-771	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	LAWRENCE	MA
—	978-772	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	AYER	MA
—	978-773	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	ANDOVER	MA
—	978-774	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	DANVERS	MA
—	978-775	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	ANDOVER	MA
—	978-776	1XXX3XXX4XXX6XXX7XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	CONCORD	MA
—	978-777	not yet reported which blocks →	VERIZON NEW ENGLAND INC.	9102	DANVERS	MA
—	978-778	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TC SYSTEMS, INC.	7135	BEVERLY	MA
—	978-779	1XXX4XXX9XXX · 2 holders which blocks →	VERIZON NEW ENGLAND INC.	9102	BOLTON	MA
—	978-780	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	ATHOL	MA
—	978-782	not yet reported which blocks →	NORFOLK COUNTY INTERNET, INC.	6083	NEWBURYPT	MA
—	978-784	4XXX7XXX8XXX · 3 holders which blocks →	VERIZON NEW ENGLAND INC.	9102	AYER	MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.