NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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
— 978-521 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 HAVERHILL MA
— 978-524 8XXX9XXX which blocks → VERIZON NEW ENGLAND INC. 9102 BEVERLY MA
— 978-525 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 MANCHESTER MA
— 978-526 0XXX2XXX3XXX5XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 MANCHESTER MA
— 978-530 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW ENGLAND INC. 9102 PEABODY MA
— 978-531 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 PEABODY MA
— 978-532 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 PEABODY MA
— 978-534 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LEOMINSTER MA
— 978-535 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 PEABODY MA
— 978-536 1XXX which blocks → VERIZON NEW ENGLAND INC. 9102 PEABODY MA
— 978-537 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LEOMINSTER MA
— 978-538 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 PEABODY MA
— 978-542 9XXX which blocks → VERIZON NEW ENGLAND INC. 9102 SALEM MA
— 978-544 4XXX which blocks → VERIZON NEW ENGLAND INC. 9102 ORANGE MA
— 978-546 0XXX4XXX which blocks → VERIZON NEW ENGLAND INC. 9102 ROCKPORT MA
— 978-551 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-554 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 XXXXXXXXXX MA
— 978-556 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 HAVERHILL MA
— 978-557 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
— 978-562 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 HUDSON MA
— 978-567 7XXX which blocks → VERIZON NEW ENGLAND INC. 9102 HUDSON MA
— 978-568 6XXX7XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 HUDSON MA
— 978-573 0XXX6XXX which blocks → VERIZON NEW ENGLAND INC. 9102 PEABODY MA
— 978-575 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW ENGLAND INC. 9102 ATHOLFKLN MA
— 978-579 1XXX3XXX4XXX7XXX · 3 holders which blocks → VERIZON NEW ENGLAND INC. 9102 SUDBURY MA
— 978-582 1XXX2XXX3XXX8XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 LUNENBURG MA
— 978-589 2XXX7XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 WESTFORD MA
— 978-597 4XXX7XXX9XXX · 3 holders which blocks → VERIZON NEW ENGLAND INC. 9102 TOWNSEND MA
— 978-623 4XXX which blocks → VERIZON NEW ENGLAND INC. 9102 ANDOVER MA
— 978-625 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
— 978-630 7XXX which blocks → VERIZON NEW ENGLAND INC. 9102 GARDNER MA
— 978-632 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 GARDNER MA
— 978-635 2XXX4XXX6XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 ACTON MA
— 978-640 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-646 7XXX which blocks → VERIZON NEW ENGLAND INC. 9102 DANVERS MA
— 978-649 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 TYNGSBORO MA
— 978-656 1XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 LOWELL MA
— 978-657 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
— 978-658 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
— 978-659 5XXX which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
— 978-661 4XXX which blocks → VERIZON NEW ENGLAND INC. 9102 WILMINGTON MA
— 978-663 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
— 978-664 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NO READING MA
— 978-665 1XXX8XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 FITCHBURG MA
— 978-667 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
— 978-670 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
— 978-671 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 BILLERICA MA
— 978-675 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 8 holders which blocks → VERIZON NEW ENGLAND INC. 9102 GLOUCESTER MA
— 978-681 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA
— 978-682 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 LAWRENCE MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.