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
2021-07-30 603-810-4XXX 4000–4999Assigned COMMIO, LLC 939H NASHUA NH
2021-07-30 603-810-5XXX 5000–5999Assigned COMMIO, LLC 939H NASHUA NH
2021-07-29 603-377-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MERRIMACK NH
2021-07-29 603-810-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NASHUA NH
2021-07-14 603-727-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J LEBANON NH
2021-07-07 603-316-2XXX 2000–2999Assigned ONVOY, LLC - NH 637E MILFORD NH
2021-07-07 603-316-6XXX 6000–6999Assigned ONVOY, LLC - NH 637E MILFORD NH
2021-07-07 603-341-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E MERRIMACK NH
2021-07-07 603-368-9XXX 9000–9999Assigned ONVOY, LLC - NH 637E PORTSMOUTH NH
2021-07-07 603-403-5XXX 5000–5999Assigned ONVOY, LLC - NH 637E ROCHESTER NH
2021-07-07 603-451-2XXX 2000–2999Assigned ONVOY, LLC - NH 637E CONCORD NH
2021-07-07 603-519-9XXX 9000–9999Assigned ONVOY, LLC - NH 637E EXETER NH
2021-07-07 603-556-3XXX 3000–3999Assigned ONVOY, LLC - NH 637E LACONIA NH
2021-07-07 603-607-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E WCHESTEFLD NH
2021-07-07 603-704-3XXX 3000–3999Assigned ONVOY, LLC - NH 637E DERRY NH
2021-07-07 603-704-4XXX 4000–4999Assigned ONVOY, LLC - NH 637E DERRY NH
2021-07-07 603-709-6XXX 6000–6999Assigned ONVOY, LLC - NH 637E PLAINFIELD NH
2021-07-07 603-795-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E LYME NH
2021-07-07 603-803-5XXX 5000–5999Assigned ONVOY, LLC - NH 637E KEENE NH
2021-07-07 603-810-6XXX 6000–6999Assigned ONVOY, LLC - NH 637E NASHUA NH
2021-07-07 603-810-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E NASHUA NH
2021-07-07 603-810-8XXX 8000–8999Assigned ONVOY, LLC - NH 637E NASHUA NH
2021-07-02 603-696-1XXX 1000–1999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-07-02 603-696-2XXX 2000–2999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-07-02 603-696-3XXX 3000–3999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-06-30 603-404-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2021-06-30 603-416-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 RAYMOND NH
2021-06-29 603-584-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-06-29 603-688-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-06-29 603-688-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-06-17 603-403-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H ROCHESTER NH
2021-06-14 603-810-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H NASHUA NH
2021-06-03 603-273-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2021-06-02 603-457-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2021-06-02 603-457-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2021-06-02 603-457-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2021-06-02 603-457-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2021-06-02 603-457-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2021-06-02 603-605-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2021-06-02 603-605-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2021-06-01 603-810-0XXX 0000–0999Assigned TELNYX LLC 073H NASHUA NH
2021-05-17 603-453-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 HAMPSTEAD NH
2021-05-17 603-696-6XXX 6000–6999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-05-14 603-270-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 SUNCOOK NH
2021-05-14 603-270-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 SUNCOOK NH
2021-05-13 603-349-3XXX 3000–3999Assigned METROPCS, INC. 5562 W LEBANON NH
2021-05-13 603-412-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PLYMOUTH NH
2021-05-12 603-519-2XXX 2000–2999Assigned METROPCS, INC. 5562 EXETER NH
2021-05-11 603-800-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEREDITH NH
2021-05-10 603-450-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD 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.