NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026

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
OMNIPOINT MIAMI E LICENSE, LLC 36
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
2018-10-30 978-736 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
2016-12-28 978-690 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
2014-10-15 978-972 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 DANVERS MA
2012-10-25 978-641 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
2011-07-21 978-427 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
2008-09-12 978-228 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
2002-08-15 978-836 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 DANVERS MA
2002-07-30 978-476 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
2002-07-30 978-726 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
2001-12-31 978-804 2XXX3XXX4XXX5XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
2001-08-06 978-885 2XXX3XXX4XXX5XXX7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
2001-05-01 978-360 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
2001-02-08 978-390 not yet reported which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
— 978-201 7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
— 978-235 7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LEOMINSTER MA
— 978-238 1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 IPSWICH MA
— 978-265 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
— 978-333 5XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HUDSON MA
— 978-335 not yet reported which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 DANVERS MA
— 978-361 1XXX5XXX6XXX7XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
— 978-375 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
— 978-394 8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
— 978-397 not yet reported which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
— 978-406 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 DANVERS MA
— 978-423 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
— 978-457 7XXX8XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
— 978-479 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
— 978-489 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
— 978-504 2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 AMESBURY MA
— 978-815 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA
— 978-902 not yet reported which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
— 978-908 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ACTON MA
— 978-912 0–9 XXXall 10 · 8 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
— 978-930 5XXX7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 BILLERICA MA
— 978-943 0XXX3XXX4XXX5XXX7XXX8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
— 978-996 8XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LOWELL MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.