NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 603
OMNIPOINT MIAMI E LICENSE, LLC 5
BELL ATLANTIC MOBILE, INC 4
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-03-24 603-414-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 SUNAPEE NH
2021-03-23 603-514-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2021-03-15 603-823-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 FRANCONIA NH
2021-03-10 603-208-3XXX 3000–3999Assigned ONVOY, LLC - NH 637E LYME NH
2021-03-08 603-451-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-03-08 603-915-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 GORHAM NH
2021-03-02 603-518-6XXX 6000–6999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-03-02 603-710-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WASHINGTON NH
2021-03-02 603-710-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WASHINGTON NH
2021-03-01 603-246-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSTEWATSTN NH
2021-03-01 603-246-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSTEWATSTN NH
2021-02-26 603-688-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H CONCORD NH
2021-02-26 603-877-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW LONDON NH
2021-02-26 603-877-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW LONDON NH
2021-02-26 603-977-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANDOVER NH
2021-02-26 603-977-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANDOVER NH
2021-02-23 603-457-4XXX 4000–4999Assigned ONVOY, LLC - NH 637E DOVER NH
2021-02-19 603-349-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 W LEBANON NH
2021-02-19 603-995-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HENNIKER NH
2021-02-09 603-705-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SALISBURY NH
2021-02-09 603-705-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SALISBURY NH
2021-02-05 603-255-8XXX 8000–8999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-02-01 603-403-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H ROCHESTER NH
2021-01-28 603-514-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H NASHUA NH
2021-01-21 603-514-0XXX 0000–0999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2021-01-21 603-514-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2021-01-06 603-406-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-01-05 603-600-8XXX 8000–8999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-01-05 603-602-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 ROCHESTER NH
2021-01-05 603-602-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 ROCHESTER NH
2021-01-05 603-602-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 ROCHESTER NH
2020-12-16 603-316-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 MILFORD NH
2020-12-10 603-457-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H DOVER NH
2020-12-10 603-600-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H MANCHESTER NH
2020-12-09 603-451-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2020-12-04 603-602-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 ROCHESTER NH
2020-12-04 603-602-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 ROCHESTER NH
2020-12-03 603-600-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MANCHESTER NH
2020-12-03 603-600-4XXX 4000–4999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2020-11-30 603-457-2XXX 2000–2999Assigned IDT AMERICA, CORP. - NH 314C DOVER NH
2020-11-25 603-562-2XXX 2000–2999Assigned UNITED STATES CELLULAR - NH 6290 PETERBROGH NH
2020-11-24 603-405-0XXX 0000–0999Assigned IDT AMERICA, CORP. - NH 314C SOMERSWTH NH
2020-11-19 603-288-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2020-11-19 603-288-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2020-11-18 603-451-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H CONCORD NH
2020-11-05 603-600-5XXX 5000–5999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2020-11-05 603-609-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2020-11-05 603-617-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2020-11-05 603-750-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2020-11-05 603-750-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.