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
2010-12-06 603-832-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2010-12-02 603-718-5XXX 5000–5999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2010-12-02 603-851-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 MANCHESTER NH
2010-11-29 603-970-2XXX 2000–2999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-29 603-970-3XXX 3000–3999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-29 603-970-4XXX 4000–4999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-29 603-970-5XXX 5000–5999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-29 603-970-6XXX 6000–6999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-29 603-970-7XXX 7000–7999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-29 603-970-8XXX 8000–8999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-29 603-970-9XXX 9000–9999Assigned CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 5113 DOVER NH
2010-11-10 603-718-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J NASHUA NH
2010-11-03 603-552-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DERRY NH
2010-11-01 603-757-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E KEENE NH
2010-10-28 603-935-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NH 996E MANCHESTER NH
2010-10-14 603-921-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASHUA NH
2010-10-05 603-718-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 NASHUA NH
2010-10-05 603-856-4XXX 4000–4999Assigned BELL ATLANTIC MOBILE, INC 6386 CONCORD NH
2010-09-24 603-820-4XXX 4000–4999Assigned METROPCS, INC. 5562 MERRIMACK NH
2010-09-24 603-820-5XXX 5000–5999Assigned METROPCS, INC. 5562 MERRIMACK NH
2010-09-24 603-820-6XXX 6000–6999Assigned METROPCS, INC. 5562 MERRIMACK NH
2010-09-20 603-777-1XXX 1000–1999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 EXETER NH
2010-09-20 603-814-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SEABROOK NH
2010-09-16 603-294-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PORTSMOUTH NH
2010-09-14 603-370-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 CANDIA NH
2010-09-14 603-421-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 DERRY NH
2010-09-14 603-509-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 ROCHESTER NH
2010-09-14 603-609-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 DOVER NH
2010-09-10 603-892-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CONCORD NH
2010-09-03 603-217-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 BRISTOL NH
2010-09-03 603-261-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MERRIMACK NH
2010-09-03 603-290-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 CONCORD NH
2010-09-03 603-389-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 DURHAM NH
2010-09-03 603-718-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 NASHUA NH
2010-09-03 603-782-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MANCHESTER NH
2010-09-03 603-952-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 SALEM NH
2010-09-02 603-380-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORTSMOUTH NH
2010-09-02 603-832-8XXX 8000–8999Assigned BELL ATLANTIC MOBILE, INC 6386 LACONIA NH
2010-08-11 603-339-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2010-08-11 603-339-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DERRY NH
2010-08-09 603-758-7XXX 7000–7999Assigned FREEDOM RING COMMUNICATIONS, LLC 8468 HAMPTON NH
2010-08-03 603-331-2XXX 2000–2999Assigned BELL ATLANTIC MOBILE, INC 6386 COLEBROOK NH
2010-08-03 603-348-3XXX 3000–3999Assigned BELL ATLANTIC MOBILE, INC 6386 NOWOODSTOK NH
2010-07-30 603-729-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TILTON NH
2010-07-29 603-257-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PLAISTOW NH
2010-07-21 603-760-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 SEABROOK NH
2010-07-12 603-556-9XXX 9000–9999Assigned IDT AMERICA, CORP. - NH 314C LACONIA NH
2010-07-08 603-331-0XXX 0000–0999Assigned OTEL TELEKOM, INC. - NH 9827 COLEBROOK NH
2010-07-08 603-515-8XXX 8000–8999Assigned OTEL TELEKOM, INC. - NH 9827 WOLFEBORO NH
2010-07-08 603-865-9XXX 9000–9999Assigned OTEL TELEKOM, INC. - NH 9827 NEWPORT 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.