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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2005-06-09 603-285-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOVER NH
2005-06-08 603-203-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER NH
2005-06-08 603-447-9XXX 9000–9999Assigned METROPCS, INC. 5562 CONWAY NH
2005-06-06 603-327-7XXX 7000–7999Assigned BELL ATLANTIC MOBILE, INC 6386 SALEM NH
2005-06-06 603-459-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2005-06-06 603-831-1XXX 1000–1999Assigned BELL ATLANTIC MOBILE, INC 6386 GREENFIELD NH
2005-06-06 603-965-6XXX 6000–6999Assigned BELL ATLANTIC MOBILE, INC 6386 DERRY NH
2005-06-03 603-326-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 BERLIN NH
2005-06-03 603-362-1XXX 1000–1999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 HAMPSTEAD NH
2005-06-03 603-941-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 WOLFEBORO NH
2005-05-31 603-394-5XXX 5000–5999Assigned METROPCS, INC. 5562 SO HAMPTON NH
2005-05-31 603-836-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J MANCHESTER NH
2005-05-27 603-537-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J DERRY NH
2005-05-17 603-903-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K KEENE NH
2005-05-09 603-686-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 EXETER NH
2005-05-09 603-686-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 EXETER NH
2005-05-06 603-244-9XXX 9000–9999Assigned BELL ATLANTIC MOBILE, INC 6386 RAYMOND NH
2005-05-06 603-391-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2005-05-06 603-724-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2005-05-04 603-513-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J CONCORD NH
2005-05-03 603-300-2XXX 2000–2999Assigned METROPCS, INC. 5562 CHESTER NH
2005-05-03 603-617-0XXX 0000–0999Assigned METROPCS, INC. 5562 DOVER NH
2005-04-21 603-505-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2005-04-19 603-446-1XXX 1000–1999Assigned OTEL TELEKOM, INC. - NH 9827 MARLOW NH
2005-04-19 603-760-9XXX 9000–9999Assigned OTEL TELEKOM, INC. - NH 9827 SEABROOK NH
2005-04-19 603-791-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NASHUA NH
2005-04-19 603-835-0XXX 0000–0999Assigned OTEL TELEKOM, INC. - NH 9827 ALSTEAD NH
2005-04-14 603-676-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J HANOVER NH
2005-04-14 603-727-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J LEBANON NH
2005-04-07 603-410-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J CONCORD NH
2005-04-07 603-509-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 ROCHESTER NH
2005-04-07 603-509-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 ROCHESTER NH
2005-04-06 603-236-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 CAMPTON NH
2005-04-06 603-244-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 RAYMOND NH
2005-04-06 603-369-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 CONCORD NH
2005-04-06 603-391-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2005-04-06 603-459-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2005-04-06 603-630-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2005-04-06 603-986-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 NO CONWAY NH
2005-04-05 603-757-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J KEENE NH
2005-04-05 603-832-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J LACONIA NH
2005-04-04 603-944-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 SO HAMPTON NH
2005-04-01 603-819-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PLAISTOW NH
2005-03-29 603-319-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PORTSMOUTH NH
2005-03-29 603-319-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PORTSMOUTH NH
2005-03-25 603-760-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J SEABROOK NH
2005-03-21 603-459-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J NASHUA NH
2005-03-21 603-608-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J NORTHWOOD NH
2005-03-21 603-769-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MILFORD NH
2005-03-21 603-769-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MILFORD 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.