NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2004-08-26 603-703-0XXX 0000–0999Assigned OTEL TELEKOM, INC. - NH 9827 MANCHESTER NH
2004-08-26 603-834-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DOVER NH
2004-08-18 603-369-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CONCORD NH
2004-08-18 603-606-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MANCHESTER NH
2004-08-18 603-709-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PLAINFIELD NH
2004-08-13 603-410-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J CONCORD NH
2004-08-10 603-686-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J EXETER NH
2004-08-09 603-239-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 WINCHESTER NH
2004-08-09 603-242-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 TROY NH
2004-08-09 603-244-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 RAYMOND NH
2004-08-09 603-246-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 WSTEWATSTN NH
2004-08-09 603-253-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 CENTER HBR NH
2004-08-09 603-262-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MERRIMACK NH
2004-08-09 603-272-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PIERMONT NH
2004-08-09 603-276-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 W LEBANON NH
2004-08-09 603-292-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 NEWMARKET NH
2004-08-09 603-329-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 HAMPSTEAD NH
2004-08-09 603-336-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 HINSDALE NH
2004-08-09 603-347-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 KINGSTON NH
2004-08-09 603-367-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MADISON NH
2004-08-09 603-379-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 RYE BEACH NH
2004-08-09 603-383-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 JACKSON NH
2004-08-09 603-384-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 GOFFSTOWN NH
2004-08-09 603-397-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 DURHAM NH
2004-08-09 603-399-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 WESTMORELD NH
2004-08-09 603-435-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PITTSFIELD NH
2004-08-09 603-446-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MARLOW NH
2004-08-09 603-452-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 CONWAY NH
2004-08-09 603-466-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 GORHAM NH
2004-08-09 603-473-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MILTON ML NH
2004-08-09 603-476-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 CTRSANDWIH NH
2004-08-09 603-482-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 ERROL NH
2004-08-09 603-525-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 HANCOCK NH
2004-08-09 603-538-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 PITTSBURG NH
2004-08-09 603-547-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 GREENFIELD NH
2004-08-09 603-563-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 DUBLIN NH
2004-08-09 603-585-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 FITZWILLIM NH
2004-08-09 603-593-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 JAFFREY NH
2004-08-09 603-608-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 NORTHWOOD NH
2004-08-09 603-632-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 ENFIELD NH
2004-08-09 603-636-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 GROVETON NH
2004-08-09 603-651-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 CTROSSIPEE NH
2004-08-09 603-671-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 FRANKLIN NH
2004-08-09 603-676-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 HANOVER NH
2004-08-09 603-707-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 MEREDITH NH
2004-08-09 603-729-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 TILTON NH
2004-08-09 603-734-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 EPPING NH
2004-08-09 603-736-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 EPSOM NH
2004-08-09 603-755-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 FARMINGTON NH
2004-08-09 603-756-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NH 4017 WALPOLE NH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.