Recent thousands-block assignments

3 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 734

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 1

EXIANT COMMUNICATIONS LLC 1

AHOI 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
2012-04-19	734-636-2XXX	2000–2999	Assigned	ONVOY, LLCV - MI	543C	MONROE	MI
2012-04-16	734-669-3XXX	3000–3999	Assigned	123.NET, LLC	2550	ANN ARBOR	MI
2012-03-20	734-627-1XXX	1000–1999	Assigned	ONVOY, LLCV - MI	543C	CHELSEA	MI
2012-03-19	734-869-8XXX	8000–8999	Assigned	ONVOY, LLCV - MI	543C	CARLETON	MI
2012-03-09	734-245-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MI	991E	LIVONIA	MI
2012-03-09	734-392-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MI	991E	PLYMOUTH	MI
2012-03-09	734-636-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MI	991E	MONROE	MI
2012-03-09	734-714-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MI	991E	YPSILANTI	MI
2012-03-08	734-535-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MI	991E	FLAT ROCK	MI
2012-03-08	734-545-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MI	991E	ANN ARBOR	MI
2012-03-05	734-391-6XXX	6000–6999	Assigned	ONVOY, LLCV - MI	543C	BELLEVILLE	MI
2012-02-22	734-818-2XXX	2000–2999	Assigned	FIRST COMMUNICATIONS, LLC	460K	TRENTON	MI
2012-02-21	734-636-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	MONROE	MI
2012-02-17	734-343-0XXX	0000–0999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-17	734-343-1XXX	1000–1999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-17	734-343-2XXX	2000–2999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-17	734-343-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	LIVONIA	MI
2012-02-17	734-343-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	LIVONIA	MI
2012-02-17	734-343-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-17	734-343-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-17	734-343-7XXX	7000–7999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-17	734-343-8XXX	8000–8999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-17	734-343-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	LIVONIA	MI
2012-02-10	734-532-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	ROMULUS	MI
2012-02-08	734-589-8XXX	8000–8999	Assigned	AT&T ENTERPRISES, LLC	516C	WAYNE	MI
2012-02-03	734-720-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	WYANDOTTE	MI
2012-02-02	734-548-9XXX	9000–9999	Assigned	ONVOY, LLCV - MI	543C	ANN ARBOR	MI
2012-01-05	734-589-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WAYNE	MI
2012-01-05	734-589-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WAYNE	MI
2012-01-05	734-589-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	WAYNE	MI
2011-12-29	734-561-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	TRENTON	MI
2011-12-29	734-669-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	ANN ARBOR	MI
2011-12-28	734-470-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI	7279	SALINE	MI
2011-12-09	734-532-0XXX	0000–0999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	ROMULUS	MI
2011-12-01	734-794-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MI	991E	ANN ARBOR	MI
2011-11-16	734-333-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	WHITMORELK	MI
2011-11-09	734-720-7XXX	7000–7999	Assigned	COMCAST IP PHONE, LLC	318J	WYANDOTTE	MI
2011-10-21	734-219-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	YPSILANTI	MI
2011-10-10	734-430-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MONROE	MI
2011-10-10	734-430-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MONROE	MI
2011-10-10	734-430-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MONROE	MI
2011-09-26	734-386-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PLYMOUTH	MI
2011-09-21	734-623-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	ANN ARBOR	MI
2011-09-19	734-548-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	ANN ARBOR	MI
2011-09-06	734-559-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	TRENTON	MI
2011-09-06	734-672-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	TRENTON	MI
2011-09-06	734-672-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	TRENTON	MI
2011-09-06	734-672-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	TRENTON	MI
2011-09-02	734-247-8XXX	8000–8999	Assigned	123.NET, LLC	2550	ROMULUS	MI
2011-08-31	734-666-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	LIVONIA	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.