Recent thousands-block assignments

7 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 231

NEW CINGULAR WIRELESS PCS, LLC - IL 2

EXIANT COMMUNICATIONS LLC 2

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2

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
2006-01-10	231-457-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MUSKEGON	MI
2006-01-09	231-383-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	BEULAH	MI
2005-12-30	231-828-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	TWIN LAKE	MI
2005-12-30	231-853-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	RAVENNA	MI
2005-12-29	231-242-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	HARBOR SPG	MI
2005-12-29	231-354-0XXX	0000–0999	Assigned	PAETEC ITEL, LLC	829J	CORAL	MI
2005-12-29	231-388-9XXX	9000–9999	Assigned	PAETEC ITEL, LLC	829J	LE ROY	MI
2005-12-29	231-824-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	MANTON	MI
2005-12-20	231-388-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	LE ROY	MI
2005-12-15	231-821-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	HOLTON	MI
2005-12-13	231-672-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MUSKEGON	MI
2005-12-12	231-468-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	CADILLAC	MI
2005-12-08	231-384-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	KALKASKA	MI
2005-12-06	231-648-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	HOWARDCITY	MI
2005-12-06	231-981-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	WHITEHALL	MI
2005-11-21	231-408-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	BIG RAPIDS	MI
2005-11-10	231-354-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	CORAL	MI
2005-11-07	231-672-2XXX	2000–2999	Assigned	FRONTIER NORTH, INC. - MI	0695	MUSKEGON	MI
2005-11-07	231-672-3XXX	3000–3999	Assigned	FRONTIER NORTH, INC. - MI	0695	MUSKEGON	MI
2005-11-07	231-672-4XXX	4000–4999	Assigned	FRONTIER NORTH, INC. - MI	0695	MUSKEGON	MI
2005-11-07	231-672-6XXX	6000–6999	Assigned	FRONTIER NORTH, INC. - MI	0695	MUSKEGON	MI
2005-11-07	231-672-7XXX	7000–7999	Assigned	FRONTIER NORTH, INC. - MI	0695	MUSKEGON	MI
2005-11-07	231-672-8XXX	8000–8999	Assigned	FRONTIER NORTH, INC. - MI	0695	MUSKEGON	MI
2005-11-03	231-225-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	FREMONT	MI
2005-10-05	231-360-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	TRAVERSECY	MI
2005-09-30	231-457-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MUSKEGON	MI
2005-09-22	231-622-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	PETOSKEY	MI
2005-09-15	231-288-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MUSKEGON	MI
2005-09-06	231-736-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MUSKEGON	MI
2005-09-01	231-830-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MUSKEGON	MI
2005-08-29	231-225-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	FREMONT	MI
2005-08-24	231-421-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	TRAVERSECY	MI
2005-08-15	231-736-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MUSKEGON	MI
2005-08-03	231-225-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI	7157	FREMONT	MI
2005-08-03	231-242-2XXX	2000–2999	Assigned	TELNET WORLDWIDE, INC.	817J	HARBOR SPG	MI
2005-08-03	231-267-1XXX	1000–1999	Assigned	TELNET WORLDWIDE, INC.	817J	WILLIAMSBG	MI
2005-08-03	231-301-7XXX	7000–7999	Assigned	TELNET WORLDWIDE, INC.	817J	HART	MI
2005-08-03	231-345-3XXX	3000–3999	Assigned	TELNET WORLDWIDE, INC.	817J	REED CITY	MI
2005-08-03	231-350-4XXX	4000–4999	Assigned	TELNET WORLDWIDE, INC.	817J	BELLAIRE	MI
2005-08-03	231-408-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI	7157	BIG RAPIDS	MI
2005-08-03	231-450-1XXX	1000–1999	Assigned	TELNET WORLDWIDE, INC.	817J	HESPERIA	MI
2005-08-03	231-459-2XXX	2000–2999	Assigned	TELNET WORLDWIDE, INC.	817J	BOYNE CITY	MI
2005-08-03	231-462-4XXX	4000–4999	Assigned	TELNET WORLDWIDE, INC.	817J	FOUNTAIN	MI
2005-08-03	231-464-0XXX	0000–0999	Assigned	TELNET WORLDWIDE, INC.	817J	FREESOIL	MI
2005-08-03	231-535-4XXX	4000–4999	Assigned	TELNET WORLDWIDE, INC.	817J	WALLOON LK	MI
2005-08-03	231-539-5XXX	5000–5999	Assigned	TELNET WORLDWIDE, INC.	817J	PELLSTON	MI
2005-08-03	231-577-5XXX	5000–5999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI	7157	CADILLAC	MI
2005-08-03	231-753-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI	7157	PETOSKEY	MI
2005-08-03	231-774-0XXX	0000–0999	Assigned	TELNET WORLDWIDE, INC.	817J	INTERLOCHN	MI
2005-08-03	231-793-3XXX	3000–3999	Assigned	TELNET WORLDWIDE, INC.	817J	WHITECLOUD	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.