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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-11-15 603-942-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J NORTHWOOD NH
2021-11-11 603-347-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J KINGSTON NH
2021-11-11 603-354-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J KEENE NH
2021-11-04 603-679-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J EPPING NH
2021-10-18 603-377-8XXX 8000–8999Assigned ONVOY, LLC - NH 637E MERRIMACK NH
2021-10-18 603-441-0XXX 0000–0999Assigned COMMIO, LLC 939H ROCHESTER NH
2021-10-18 603-441-2XXX 2000–2999Assigned ONVOY, LLC - NH 637E ROCHESTER NH
2021-10-18 603-441-9XXX 9000–9999Assigned COMMIO, LLC 939H ROCHESTER NH
2021-10-18 603-514-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2021-10-18 603-584-4XXX 4000–4999Assigned ONVOY, LLC - NH 637E CONCORD NH
2021-10-18 603-584-5XXX 5000–5999Assigned IDT AMERICA, CORP. - NH 314C CONCORD NH
2021-10-18 603-704-5XXX 5000–5999Assigned ONVOY, LLC - NH 637E DERRY NH
2021-10-18 603-988-0XXX 0000–0999Assigned ONVOY, LLC - NH 637E PORTSMOUTH NH
2021-10-13 603-999-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SALEM NH
2021-10-13 603-999-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SALEM NH
2021-10-13 603-999-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SALEM NH
2021-10-13 603-999-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SALEM NH
2021-10-13 603-999-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SALEM NH
2021-10-05 603-514-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NASHUA NH
2021-10-05 603-584-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-10-05 603-704-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2021-10-05 603-800-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEREDITH NH
2021-09-29 603-541-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J MANCHESTER NH
2021-09-23 603-690-0XXX 0000–0999Assigned METROPCS, INC. 5562 CLAREMONT NH
2021-09-20 603-850-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LISBON NH
2021-09-16 603-514-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H NASHUA NH
2021-09-09 603-441-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ROCHESTER NH
2021-09-09 603-441-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ROCHESTER NH
2021-09-08 603-584-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H CONCORD NH
2021-09-02 603-338-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 KEENE NH
2021-09-01 603-696-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MANCHESTER NH
2021-09-01 603-696-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MANCHESTER NH
2021-08-31 603-365-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MERRIMACK NH
2021-08-31 603-365-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MERRIMACK NH
2021-08-31 603-368-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PORTSMOUTH NH
2021-08-31 603-368-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PORTSMOUTH NH
2021-08-31 603-751-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PELHAM NH
2021-08-31 603-751-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PELHAM NH
2021-08-26 603-584-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-08-26 603-584-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-08-26 603-584-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-08-26 603-584-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2021-08-11 603-696-4XXX 4000–4999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-08-11 603-696-5XXX 5000–5999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-08-11 603-696-7XXX 7000–7999Assigned ONVOY, LLC - NH 637E MANCHESTER NH
2021-08-11 603-815-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 DURHAM NH
2021-08-06 603-316-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 MILFORD NH
2021-07-30 603-750-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DOVER NH
2021-07-30 603-810-2XXX 2000–2999Assigned COMMIO, LLC 939H NASHUA NH
2021-07-30 603-810-3XXX 3000–3999Assigned COMMIO, LLC 939H NASHUA 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.