Recent thousands-block assignments

17 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 443

ONVOY, LLC - MD 8

NEW CINGULAR WIRELESS PCS, LLC - DC 4

VERSATEL LLC 1

OPENTACT INC. 1

LEVEL 3 COMMUNICATIONS, LLC - MD 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
2003-08-06	443-812-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	COLUMBIA	MD
2003-08-06	443-848-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GLENBURNIE	MD
2003-08-06	443-880-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	SALISBURY	MD
2003-08-05	443-701-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	ARBUTUS	MD
2003-07-29	443-203-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WEST RIVER	MD
2003-07-29	443-426-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	RANDALLSTN	MD
2003-07-29	443-541-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	COCKEYSVL	MD
2003-07-22	443-220-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	BALTIMORE	MD
2003-07-22	443-220-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-07-22	443-220-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-07-16	443-879-5XXX	5000–5999	Assigned	VERIZON MARYLAND, INC.	9212	DUNDALK	MD
2003-07-02	443-257-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2003-07-02	443-257-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2003-07-02	443-386-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2003-07-02	443-417-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2003-07-02	443-618-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GLENBURNIE	MD
2003-07-02	443-880-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	SALISBURY	MD
2003-06-26	443-507-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	HAMPSTEAD	MD
2003-06-18	443-343-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	MILLERSVL	MD
2003-06-16	443-872-6XXX	6000–6999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2003-06-16	443-872-7XXX	7000–7999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2003-06-16	443-872-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2003-06-02	443-417-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2003-06-02	443-880-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	SALISBURY	MD
2003-05-16	443-204-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2003-05-16	443-204-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2003-05-16	443-204-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2003-05-16	443-204-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2003-05-02	443-574-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	ELLICOTTCY	MD
2003-04-19	443-992-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-04-19	443-992-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-03-17	443-864-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	COLUMBIA	MD
2003-03-17	443-992-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-03-17	443-992-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-03-17	443-992-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-03-17	443-992-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-03-17	443-992-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	BALTIMORE	MD
2003-03-17	443-992-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-03-07	443-417-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	FALLSTON	MD
2003-03-04	443-212-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	SPARKSGLNC	MD
2003-03-03	443-457-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	BRYNPKLNCM	MD
2003-02-07	443-426-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	RANDALLSTN	MD
2003-02-07	443-650-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	REISTERSTN	MD
2003-02-07	443-733-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	WATERLO238	MD
2003-02-06	443-533-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	JARRETTSVL	MD
2003-02-06	443-607-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	WEST RIVER	MD
2003-02-06	443-609-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	SYKESVILLE	MD
2003-02-05	443-417-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2003-02-04	443-244-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WESTMINSTR	MD
2003-02-03	443-259-9XXX	9000–9999	Assigned	PAETEC ITEL, LLC	829J	COLUMBIA	MD

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.