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
2008-05-06 603-306-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 LEBANON NH
2008-05-06 603-393-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2008-05-06 603-657-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2008-05-06 603-686-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 EXETER NH
2008-04-02 603-372-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 CLAREMONT NH
2008-04-02 603-809-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2008-04-02 603-856-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2008-04-02 603-953-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 DOVER NH
2008-04-02 603-998-0XXX 0000–0999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2008-03-26 603-203-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MANCHESTER NH
2008-03-26 603-717-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2008-03-20 603-217-0XXX 0000–0999Assigned IDT AMERICA, CORP. - NH 314C BRISTOL NH
2008-03-20 603-238-0XXX 0000–0999Assigned IDT AMERICA, CORP. - NH 314C PLYMOUTH NH
2008-03-20 603-250-8XXX 8000–8999Assigned IDT AMERICA, CORP. - NH 314C CENTER HBR NH
2008-03-20 603-267-5XXX 5000–5999Assigned IDT AMERICA, CORP. - NH 314C BELMONT NH
2008-03-20 603-389-8XXX 8000–8999Assigned IDT AMERICA, CORP. - NH 314C DURHAM NH
2008-03-20 603-435-0XXX 0000–0999Assigned IDT AMERICA, CORP. - NH 314C PITTSFIELD NH
2008-03-20 603-463-1XXX 1000–1999Assigned IDT AMERICA, CORP. - NH 314C DEERFIELD NH
2008-03-20 603-473-1XXX 1000–1999Assigned IDT AMERICA, CORP. - NH 314C MILTON ML NH
2008-03-20 603-515-1XXX 1000–1999Assigned IDT AMERICA, CORP. - NH 314C WOLFEBORO NH
2008-03-20 603-527-8XXX 8000–8999Assigned IDT AMERICA, CORP. - NH 314C LACONIA NH
2008-03-20 603-652-8XXX 8000–8999Assigned IDT AMERICA, CORP. - NH 314C MILTON NH
2008-03-20 603-671-7XXX 7000–7999Assigned IDT AMERICA, CORP. - NH 314C FRANKLIN NH
2008-03-20 603-677-7XXX 7000–7999Assigned IDT AMERICA, CORP. - NH 314C MEREDITH NH
2008-03-20 603-729-0XXX 0000–0999Assigned IDT AMERICA, CORP. - NH 314C TILTON NH
2008-03-20 603-736-0XXX 0000–0999Assigned IDT AMERICA, CORP. - NH 314C EPSOM NH
2008-03-20 603-839-1XXX 1000–1999Assigned IDT AMERICA, CORP. - NH 314C FARMINGTON NH
2008-03-20 603-905-9XXX 9000–9999Assigned IDT AMERICA, CORP. - NH 314C BARRINGTON NH
2008-03-20 603-942-6XXX 6000–6999Assigned IDT AMERICA, CORP. - NH 314C NORTHWOOD NH
2008-03-20 603-968-6XXX 6000–6999Assigned IDT AMERICA, CORP. - NH 314C ASHLAND NH
2008-03-13 603-760-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J SEABROOK NH
2008-03-13 603-903-1XXX 1000–1999Assigned ONVOY, LLC - NH 637E KEENE NH
2008-03-10 603-820-0XXX 0000–0999Assigned METROPCS, INC. 5562 MERRIMACK NH
2008-03-06 603-247-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2008-03-06 603-714-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 BEDFORD NH
2008-03-06 603-728-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 NOWOODSTOK NH
2008-03-06 603-831-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 GREENFIELD NH
2008-02-28 603-948-2XXX 2000–2999Assigned IDT AMERICA, CORP. - NH 314C ROCHESTER NH
2008-02-22 603-206-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MANCHESTER NH
2008-02-22 603-367-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J MADISON NH
2008-02-07 603-277-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 7778 HANOVER NH
2008-02-06 603-276-7XXX 7000–7999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 W LEBANON NH
2008-02-06 603-306-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 LEBANON NH
2008-02-06 603-306-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 LEBANON NH
2008-02-06 603-327-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 SALEM NH
2008-02-06 603-581-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2008-02-06 603-657-0XXX 0000–0999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2008-02-06 603-724-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2008-02-06 603-732-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 MILFORD NH
2008-02-06 603-809-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 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.