NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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
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-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2017-09-01 978-963 8XXX which blocks → VERIZON NEW ENGLAND INC. 9102 CONCORD MA
2016-12-27 978-892 0–9 XXXwhole prefix which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
2016-07-01 978-588 0–9 XXXall 10 · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 AYER MA
2007-08-23 978-676 0–9 XXXwhole prefix which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
2001-07-27 978-483 0–9 XXXall 10 · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
2001-02-20 978-399 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 WESTFORD MA
— 978-213 0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW ENGLAND INC. 9102 TOPSFIELD MA
— 978-214 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 ANDOVER MA
— 978-220 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 XXXXXXXXXX MA
— 978-232 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 BEVERLY MA
— 978-236 0XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 BEVERLY MA
— 978-242 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
— 978-244 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-247 0XXX which blocks → VERIZON NEW ENGLAND INC. 9102 ANDOVER MA
— 978-248 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 6 holders which blocks → VERIZON NEW ENGLAND INC. 9102 ATHOL MA
— 978-249 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 ATHOL MA
— 978-250 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-251 5XXX which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-256 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-260 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 XXXXXXXXXX MA
— 978-262 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
— 978-263 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 ACTON MA
— 978-264 8XXX which blocks → VERIZON NEW ENGLAND INC. 9102 ACTON MA
— 978-266 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 ACTON MA
— 978-275 7XXX which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-276 4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 NO READING MA
— 978-280 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 CONCORD MA
— 978-281 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 GLOUCESTER MA
— 978-282 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 GLOUCESTER MA
— 978-283 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 GLOUCESTER MA
— 978-284 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
— 978-287 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 CONCORD MA
— 978-292 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
— 978-294 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
— 978-297 6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW ENGLAND INC. 9102 WINCHENDON MA
— 978-318 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 CONCORD MA
— 978-322 0XXX which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-323 1XXX9XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-329 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
— 978-340 none assigned yet which blocks → VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
— 978-342 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
— 978-343 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
— 978-345 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
— 978-346 1XXX2XXX3XXX5XXX6XXX · 5 holders which blocks → VERIZON NEW ENGLAND INC. 9102 MERRIMAC MA
— 978-348 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
— 978-352 0XXX1XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 GEORGETOWN MA
— 978-353 5XXX9XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
— 978-354 5XXX6XXX7XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 SALEM MA
— 978-355 1XXX7XXX8XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 BARRE MA
— 978-356 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 IPSWICH MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.