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
2011-07-12 603-892-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2011-07-06 603-287-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CLAREMONT NH
2011-07-06 603-966-0XXX 0000–0999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2011-07-01 603-842-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2011-06-30 603-427-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PORTSMOUTH NH
2011-06-29 603-218-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MANCHESTER NH
2011-06-17 603-348-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 NOWOODSTOK NH
2011-06-10 603-554-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MILFORD NH
2011-06-08 603-921-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2011-06-08 603-921-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2011-06-08 603-957-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORTSMOUTH NH
2011-06-08 603-957-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORTSMOUTH NH
2011-06-06 603-560-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SALEM NH
2011-06-03 603-340-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 SUNCOOK NH
2011-05-23 603-762-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 KEENE NH
2011-05-23 603-892-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2011-05-09 603-601-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HAMPTON NH
2011-05-05 603-552-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2011-05-05 603-554-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 MILFORD NH
2011-05-05 603-718-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2011-05-05 603-851-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2011-05-05 603-960-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 CAMPTON NH
2011-04-12 603-497-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 GOFFSTOWN NH
2011-04-04 603-552-0XXX 0000–0999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2011-03-30 603-208-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J LYME NH
2011-03-17 603-422-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PORTSMOUTH NH
2011-03-17 603-422-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PORTSMOUTH NH
2011-03-17 603-948-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 ROCHESTER NH
2011-03-14 603-583-6XXX 6000–6999Assigned METROPCS, INC. 5562 EXETER NH
2011-03-03 603-631-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 LANCASTER NH
2011-03-03 603-831-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 GREENFIELD NH
2011-03-03 603-843-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 NEWPORT NH
2011-02-23 603-292-2XXX 2000–2999Assigned OTEL TELEKOM, INC. - NH 9827 NEWMARKET NH
2011-02-23 603-370-5XXX 5000–5999Assigned OTEL TELEKOM, INC. - NH 9827 CANDIA NH
2011-02-23 603-693-5XXX 5000–5999Assigned OTEL TELEKOM, INC. - NH 9827 EPPING NH
2011-02-17 603-319-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PORTSMOUTH NH
2011-02-17 603-458-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SALEM NH
2011-02-14 603-601-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J HAMPTON NH
2011-02-02 603-327-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 SALEM NH
2011-02-02 603-341-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 MERRIMACK NH
2011-02-02 603-832-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2011-02-02 603-892-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2011-02-02 603-903-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 KEENE NH
2011-02-02 603-918-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 HAMPTON NH
2011-01-31 603-583-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EXETER NH
2011-01-31 603-997-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HAMPTON NH
2011-01-13 603-854-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER NH
2011-01-05 603-923-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 ROCHESTER NH
2010-12-29 603-215-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 7778 BERLIN NH
2010-12-15 603-718-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E 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.