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
2023-06-06 603-709-0XXX 0000–0999Assigned ONVOY, LLC - NH 637E PLAINFIELD NH
2023-06-06 603-713-8XXX 8000–8999Assigned ONVOY, LLC - NH 637E NASHUA NH
2023-06-06 603-757-5XXX 5000–5999Assigned ONVOY, LLC - NH 637E KEENE NH
2023-06-06 603-802-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E CONCORD NH
2023-06-05 603-258-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOLLIS NH
2023-06-05 603-710-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WASHINGTON NH
2023-05-26 603-956-9XXX 9000–9999Assigned ONVOY, LLC - NH 637E PORTSMOUTH NH
2023-05-24 603-688-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H CONCORD NH
2023-05-24 603-697-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H DOVER NH
2023-05-24 603-837-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J WHITEFIELD NH
2023-05-23 603-466-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J GORHAM NH
2023-05-23 603-636-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J GROVETON NH
2023-05-23 603-751-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J PELHAM NH
2023-05-19 603-453-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 HAMPSTEAD NH
2023-05-16 603-458-4XXX 4000–4999Assigned ONVOY, LLC - NH 637E SALEM NH
2023-05-16 603-842-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E DOVER NH
2023-05-09 603-309-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 NEWPORT NH
2023-05-03 603-552-6XXX 6000–6999Assigned ONVOY, LLC - NH 637E DERRY NH
2023-04-11 603-461-5XXX 5000–5999Assigned ONVOY, LLC - NH 637E MERRIMACK NH
2023-04-11 603-956-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E PORTSMOUTH NH
2023-04-05 603-691-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 EXETER NH
2023-03-31 603-200-7XXX 7000–7999Assigned TELNYX LLC 073H NEWMARKET NH
2023-03-31 603-565-3XXX 3000–3999Assigned IDT AMERICA, CORP. - NH 314C PENACOOK NH
2023-03-29 603-272-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J PIERMONT NH
2023-03-29 603-323-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J TAMWORTH NH
2023-03-29 603-515-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J WOLFEBORO NH
2023-03-29 603-684-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J LANCASTER NH
2023-03-29 603-764-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J WARREN NH
2023-03-29 603-786-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J RUMNEY NH
2023-03-27 603-322-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J W LEBANON NH
2023-03-24 603-877-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J NEW LONDON NH
2023-03-22 603-663-9XXX 9000–9999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2023-03-22 603-709-3XXX 3000–3999Assigned ONVOY, LLC - NH 637E PLAINFIELD NH
2023-03-22 603-879-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2023-03-14 603-824-8XXX 8000–8999Assigned ONVOY, LLC - NH 637E SALEM NH
2023-03-09 603-697-4XXX 4000–4999Assigned ONVOY, LLC - NH 637E DOVER NH
2023-03-08 603-338-3XXX 3000–3999Assigned ONVOY, LLC - NH 637E KEENE NH
2023-03-08 603-633-2XXX 2000–2999Assigned ONVOY, LLC - NH 637E MILFORD NH
2023-03-08 603-691-8XXX 8000–8999Assigned ONVOY, LLC - NH 637E EXETER NH
2023-03-02 603-256-2XXX 2000–2999Assigned ONVOY, LLC - NH 637E WCHESTEFLD NH
2023-03-02 603-420-2XXX 2000–2999Assigned ONVOY, LLC - NH 637E MERRIMACK NH
2023-03-02 603-619-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E LACONIA NH
2023-03-02 603-691-9XXX 9000–9999Assigned COMMIO, LLC 939H EXETER NH
2023-02-27 603-200-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 NEWMARKET NH
2023-02-27 603-720-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K TROY NH
2023-02-24 603-827-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K HARRISVL NH
2023-02-22 603-257-2XXX 2000–2999Assigned TELNYX LLC 073H PLAISTOW NH
2023-02-21 603-814-6XXX 6000–6999Assigned IDT AMERICA, CORP. - NH 314C SEABROOK NH
2023-02-14 603-708-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CANTERBURY NH
2023-02-02 603-725-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NH 8299 TAMWORTH 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.