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
2005-12-07 603-845-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2005-12-05 603-216-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2005-11-21 603-347-0XXX 0000–0999Assigned OTEL TELEKOM, INC. - NH 9827 KINGSTON NH
2005-11-17 603-275-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2005-11-17 603-866-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DOVER NH
2005-11-14 603-203-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER NH
2005-11-14 603-275-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2005-11-03 603-504-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 CLAREMONT NH
2005-11-03 603-953-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 DOVER NH
2005-11-01 603-351-8XXX 8000–8999Assigned METROPCS, INC. 5562 GOFFSTOWN NH
2005-11-01 603-755-1XXX 1000–1999Assigned METROPCS, INC. 5562 FARMINGTON NH
2005-10-28 603-283-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J KEENE NH
2005-10-28 603-546-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NASHUA NH
2005-10-20 603-292-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J NEWMARKET NH
2005-10-20 603-966-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2005-10-18 603-513-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CONCORD NH
2005-10-18 603-676-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J HANOVER NH
2005-10-18 603-791-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NASHUA NH
2005-10-18 603-879-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NASHUA NH
2005-10-11 603-986-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 NO CONWAY NH
2005-10-03 603-608-2XXX 2000–2999Assigned METROPCS, INC. 5562 NORTHWOOD NH
2005-09-27 603-300-3XXX 3000–3999Assigned METROPCS, INC. 5562 CHESTER NH
2005-09-26 603-452-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 CONWAY NH
2005-09-26 603-832-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2005-09-21 603-842-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DOVER NH
2005-09-12 603-515-2XXX 2000–2999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 WOLFEBORO NH
2005-09-12 603-690-5XXX 5000–5999Assigned UNITED STATES CELLULAR - NH 6290 CLAREMONT NH
2005-09-07 603-630-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2005-09-07 603-897-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2005-09-07 603-988-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PORTSMOUTH NH
2005-09-02 603-965-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2005-08-30 603-966-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NASHUA NH
2005-08-23 603-904-0XXX 0000–0999Assigned OTEL TELEKOM, INC. - NH 9827 WALPOLE NH
2005-08-19 603-259-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 LITTLETON NH
2005-08-19 603-262-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MERRIMACK NH
2005-08-19 603-317-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MILAN NH
2005-08-19 603-353-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 ORFORD NH
2005-08-19 603-522-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 SANBORNVL NH
2005-08-19 603-565-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PENACOOK NH
2005-08-19 603-586-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 JEFFERSON NH
2005-08-19 603-652-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MILTON NH
2005-08-19 603-684-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 LANCASTER NH
2005-08-19 603-712-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PIKE NH
2005-08-19 603-727-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 LEBANON NH
2005-08-19 603-728-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 NOWOODSTOK NH
2005-08-19 603-795-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 LYME NH
2005-08-19 603-865-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 NEWPORT NH
2005-08-19 603-873-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 SUNAPEE NH
2005-08-19 603-874-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MONROE NH
2005-08-19 603-899-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 RINDGE 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.