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
2014-10-30 603-400-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOLLIS NH
2014-10-27 603-757-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 KEENE NH
2014-10-22 603-824-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 7778 SALEM NH
2014-10-21 603-499-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K KEENE NH
2014-10-15 603-966-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2014-10-13 603-261-4XXX 4000–4999Assigned METROPCS, INC. 5562 MERRIMACK NH
2014-10-13 603-530-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRISTOL NH
2014-10-13 603-530-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRISTOL NH
2014-10-13 603-820-9XXX 9000–9999Assigned METROPCS, INC. 5562 MERRIMACK NH
2014-10-06 603-413-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MANCHESTER NH
2014-10-06 603-952-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SALEM NH
2014-10-02 603-294-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PORTSMOUTH NH
2014-10-01 603-308-0XXX 0000–0999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-1XXX 1000–1999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-2XXX 2000–2999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-3XXX 3000–3999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-4XXX 4000–4999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-5XXX 5000–5999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-6XXX 6000–6999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-7XXX 7000–7999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-8XXX 8000–8999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-10-01 603-308-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HANOVER NH
2014-09-22 603-268-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 SUNCOOK NH
2014-09-22 603-348-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 NOWOODSTOK NH
2014-09-18 603-836-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MANCHESTER NH
2014-09-12 603-948-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NH
2014-09-05 603-814-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SEABROOK NH
2014-09-04 603-418-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J EXETER NH
2014-08-28 603-374-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BARTLETT NH
2014-08-26 603-948-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 ROCHESTER NH
2014-08-25 603-260-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J DERRY NH
2014-08-19 603-285-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J DOVER NH
2014-08-13 603-266-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TILTON NH
2014-07-23 603-716-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2014-07-16 603-777-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EXETER NH
2014-06-19 603-260-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2014-06-18 603-631-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 LANCASTER NH
2014-06-12 603-242-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 TROY NH
2014-06-12 603-246-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 WSTEWATSTN NH
2014-06-12 603-487-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NEW BOSTON NH
2014-06-12 603-922-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 NO STRATFD NH
2014-06-11 603-449-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 MILAN NH
2014-06-11 603-473-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 MILTON ML NH
2014-06-11 603-482-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 ERROL NH
2014-06-11 603-586-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 JEFFERSON NH
2014-06-11 603-768-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DANBURY NH
2014-06-11 603-788-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 LANCASTER NH
2014-06-11 603-827-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 HARRISVL NH
2014-06-11 603-838-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 LISBON NH
2014-06-10 603-263-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 7778 MANCHESTER 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.