Recent thousands-block assignments

0 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, all time — NPA 603

TWC IP ENABLED SERVICES, LLC 59

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

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
2025-03-19	603-563-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	DUBLIN	NH
2023-09-07	603-971-0XXX	0000–0999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	RINDGE	NH
2023-08-02	603-256-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WCHESTEFLD	NH
2023-08-02	603-317-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	MILAN	NH
2023-08-02	603-363-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	SPOFFORD	NH
2023-08-02	603-399-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WESTMORELD	NH
2023-08-02	603-585-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	FITZWILLIM	NH
2023-02-27	603-720-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	TROY	NH
2023-02-24	603-827-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	HARRISVL	NH
2018-05-03	603-544-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	MELVIN VLG	NH
2017-08-07	603-901-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CONWAY	NH
2016-10-11	603-307-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	NO CONWAY	NH
2016-06-08	603-301-0XXX	0000–0999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CTROSSIPEE	NH
2015-08-27	603-338-0XXX	0000–0999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	KEENE	NH
2014-10-21	603-499-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	KEENE	NH
2013-07-18	603-937-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	MEREDITH	NH
2012-09-24	603-354-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	KEENE	NH
2012-09-24	603-939-4XXX	4000–4999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	EASTCONWAY	NH
2012-07-30	603-215-6XXX	6000–6999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	BERLIN	NH
2012-07-30	603-217-9XXX	9000–9999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	BRISTOL	NH
2012-07-30	603-238-9XXX	9000–9999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	PLYMOUTH	NH
2012-07-30	603-253-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CENTER HBR	NH
2012-07-30	603-323-6XXX	6000–6999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	TAMWORTH	NH
2012-07-30	603-367-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	MADISON	NH
2012-07-30	603-374-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	BARTLETT	NH
2012-07-30	603-383-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	JACKSON	NH
2012-07-30	603-392-2XXX	2000–2999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WINCHESTER	NH
2012-07-30	603-473-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	MILTON ML	NH
2012-07-30	603-476-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CTRSANDWIH	NH
2012-07-30	603-515-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WOLFEBORO	NH
2012-07-30	603-575-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	LITTLETON	NH
2012-07-30	603-586-6XXX	6000–6999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	JEFFERSON	NH
2012-07-30	603-636-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	GROVETON	NH
2012-07-30	603-638-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	MONROE	NH
2012-07-30	603-651-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CTROSSIPEE	NH
2012-07-30	603-662-0XXX	0000–0999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CONWAY	NH
2012-07-30	603-730-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	NO CONWAY	NH
2012-07-30	603-745-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	NOWOODSTOK	NH
2012-07-30	603-764-6XXX	6000–6999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WARREN	NH
2012-07-30	603-786-6XXX	6000–6999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	RUMNEY	NH
2012-07-30	603-787-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WOODSVILLE	NH
2012-07-30	603-788-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	LANCASTER	NH
2012-07-30	603-823-2XXX	2000–2999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	FRANCONIA	NH
2012-07-30	603-837-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WHITEFIELD	NH
2012-07-30	603-838-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	LISBON	NH
2012-07-30	603-839-9XXX	9000–9999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	FARMINGTON	NH
2012-07-30	603-846-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	TWIN MT	NH
2012-07-30	603-869-0XXX	0000–0999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	BETHLEHEM	NH
2012-07-30	603-871-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	SANBORNVL	NH
2012-07-30	603-876-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	MARLBOROGH	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.