Recent thousands-block assignments

2 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 586

NEW CINGULAR WIRELESS PCS, LLC - IL 1

INTRADO COMMUNICATIONS, LLC 1

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
2007-04-09	586-943-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ROSEVILLE	MI
2007-03-13	586-698-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	WARREN	MI
2007-03-07	586-329-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	MT CLEMENS	MI
2007-03-07	586-339-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	NEW HAVEN	MI
2007-03-02	586-329-1XXX	1000–1999	Assigned	COMCAST IP PHONE, LLC	318J	MT CLEMENS	MI
2007-03-02	586-329-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	MT CLEMENS	MI
2007-03-02	586-329-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	MT CLEMENS	MI
2007-03-02	586-648-6XXX	6000–6999	Assigned	COMCAST IP PHONE, LLC	318J	NEWBALTIMR	MI
2007-02-27	586-718-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WARREN	MI
2007-02-20	586-439-6XXX	6000–6999	Assigned	PAETEC ITEL, LLC	829J	ROSEVILLE	MI
2007-02-20	586-439-7XXX	7000–7999	Assigned	CLEAR RATE COMMUNICATIONS, LLC	046L	ROSEVILLE	MI
2007-02-12	586-932-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	UTICA	MI
2007-02-12	586-932-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	UTICA	MI
2007-02-06	586-945-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ROSEVILLE	MI
2007-01-31	586-354-9XXX	9000–9999	Assigned	ONVOY, LLCV - MI	543C	WARREN	MI
2007-01-31	586-439-1XXX	1000–1999	Assigned	ONVOY, LLCV - MI	543C	ROSEVILLE	MI
2007-01-31	586-439-2XXX	2000–2999	Assigned	ONVOY, LLCV - MI	543C	ROSEVILLE	MI
2007-01-31	586-486-0XXX	0000–0999	Assigned	ONVOY, LLCV - MI	543C	CENTERLINE	MI
2007-01-31	586-569-4XXX	4000–4999	Assigned	ONVOY, LLCV - MI	543C	MT CLEMENS	MI
2007-01-31	586-569-5XXX	5000–5999	Assigned	ONVOY, LLCV - MI	543C	MT CLEMENS	MI
2007-01-31	586-722-6XXX	6000–6999	Assigned	ONVOY, LLCV - MI	543C	WARREN	MI
2007-01-31	586-803-7XXX	7000–7999	Assigned	ONVOY, LLCV - MI	543C	UTICA	MI
2007-01-31	586-803-8XXX	8000–8999	Assigned	ONVOY, LLCV - MI	543C	UTICA	MI
2007-01-16	586-718-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WARREN	MI
2007-01-16	586-718-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WARREN	MI
2007-01-12	586-741-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MT CLEMENS	MI
2007-01-09	586-806-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	CENTERLINE	MI
2007-01-09	586-806-6XXX	6000–6999	Assigned	COMCAST IP PHONE, LLC	318J	CENTERLINE	MI
2007-01-08	586-232-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	WASHINGTON	MI
2007-01-05	586-420-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	ROSEVILLE	MI
2007-01-05	586-443-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	ROSEVILLE	MI
2007-01-05	586-443-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	ROSEVILLE	MI
2007-01-05	586-443-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	ROSEVILLE	MI
2006-12-06	586-744-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WARREN	MI
2006-11-21	586-894-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	ROMEO	MI
2006-11-15	586-855-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	MT CLEMENS	MI
2006-11-15	586-871-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	ROSEVILLE	MI
2006-11-15	586-872-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	ROSEVILLE	MI
2006-11-15	586-879-0XXX	0000–0999	Assigned	COMCAST IP PHONE, LLC	318J	ROSEVILLE	MI
2006-11-13	586-944-0XXX	0000–0999	Assigned	WOW! INTERNET, CABLE AND PHONE	961J	ROSEVILLE	MI
2006-11-13	586-944-2XXX	2000–2999	Assigned	WOW! INTERNET, CABLE AND PHONE	961J	ROSEVILLE	MI
2006-11-09	586-453-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	ROMEO	MI
2006-10-11	586-329-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MT CLEMENS	MI
2006-10-11	586-329-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MT CLEMENS	MI
2006-10-06	586-540-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ROMEO	MI
2006-10-06	586-623-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ROMEO	MI
2006-10-06	586-879-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ROSEVILLE	MI
2006-10-06	586-879-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ROSEVILLE	MI
2006-10-02	586-746-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MT CLEMENS	MI
2006-09-22	586-649-7XXX	7000–7999	Assigned	COMCAST IP PHONE, LLC	318J	MT CLEMENS	MI

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.