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
2010-07-02 603-717-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2010-07-02 603-718-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2010-07-02 603-730-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 NO CONWAY NH
2010-07-02 603-851-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2010-07-02 603-903-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 KEENE NH
2010-06-28 603-427-9XXX 9000–9999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 PORTSMOUTH NH
2010-06-24 603-204-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2010-06-24 603-306-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEBANON NH
2010-06-24 603-465-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOLLIS NH
2010-06-23 603-583-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EXETER NH
2010-06-18 603-952-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J SALEM NH
2010-06-16 603-782-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MANCHESTER NH
2010-06-14 603-294-6XXX 6000–6999Assigned METROPCS, INC. 5562 PORTSMOUTH NH
2010-06-14 603-294-7XXX 7000–7999Assigned METROPCS, INC. 5562 PORTSMOUTH NH
2010-06-14 603-294-8XXX 8000–8999Assigned METROPCS, INC. 5562 PORTSMOUTH NH
2010-06-14 603-360-1XXX 1000–1999Assigned TOPSHAM COMMUNICATIONS, LLC 573F ORFORD NH
2010-06-03 603-339-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2010-05-07 603-937-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEREDITH NH
2010-05-04 603-716-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2010-04-21 603-822-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ROCHESTER NH
2010-04-07 603-348-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 NOWOODSTOK NH
2010-04-07 603-583-0XXX 0000–0999Assigned BELL ATLANTIC MOBILE, INC 6386 EXETER NH
2010-04-07 603-923-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 ROCHESTER NH
2010-03-31 603-294-2XXX 2000–2999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 PORTSMOUTH NH
2010-03-31 603-923-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NH
2010-03-29 603-510-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MERIDEN NH
2010-03-23 603-795-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LYME NH
2010-03-03 603-717-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2010-03-03 603-762-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 KEENE NH
2010-03-03 603-812-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 PORTSMOUTH NH
2010-02-19 603-820-1XXX 1000–1999Assigned METROPCS, INC. 5562 MERRIMACK NH
2010-02-19 603-820-2XXX 2000–2999Assigned METROPCS, INC. 5562 MERRIMACK NH
2010-02-19 603-820-3XXX 3000–3999Assigned METROPCS, INC. 5562 MERRIMACK NH
2010-02-16 603-287-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CLAREMONT NH
2010-02-04 603-340-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 SUNCOOK NH
2010-02-04 603-717-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2010-02-04 603-748-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 WARNER NH
2010-02-04 603-833-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 ROCHESTER NH
2010-02-04 603-998-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2010-01-11 603-762-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KEENE NH
2010-01-07 603-348-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 NOWOODSTOK NH
2009-12-22 603-903-6XXX 6000–6999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 KEENE NH
2009-12-16 603-729-1XXX 1000–1999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 TILTON NH
2009-12-04 603-732-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 MILFORD NH
2009-12-01 603-758-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J HAMPTON NH
2009-11-24 603-808-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J ANTRIM NH
2009-11-19 603-339-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2009-11-19 603-393-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2009-11-19 603-680-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HILLSBORO NH
2009-11-19 603-921-1XXX 1000–1999Assigned 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.