Recent thousands-block assignments

17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2004-01-21	443-375-4XXX	4000–4999	Assigned	VDL, INC. DBA GLOBAL TELECOM BROKERS - MD	4492	HAMPSTEAD	MD
2004-01-16	443-483-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	CARDIFF	MD
2004-01-16	443-550-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	NORTHBEACH	MD
2004-01-16	443-737-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WATERLO238	MD
2004-01-15	443-267-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	DARLINGTON	MD
2004-01-15	443-295-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	PRINCEFRCK	MD
2004-01-15	443-502-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	HAVREGRACE	MD
2004-01-15	443-550-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	NORTHBEACH	MD
2004-01-15	443-674-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	NORTH EAST	MD
2004-01-15	443-693-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	PERRYVILLE	MD
2004-01-15	443-732-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	SILVER RUN	MD
2004-01-15	443-747-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	PT DEPOSIT	MD
2004-01-15	443-907-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	ELKTON	MD
2004-01-15	443-918-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	TANEYTOWN	MD
2004-01-15	443-937-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	UNION BDG	MD
2004-01-13	443-424-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	CARDIFF	MD
2004-01-08	443-672-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	PARKTON	MD
2004-01-06	443-504-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2003-12-26	443-262-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CENTREVL	MD
2003-12-26	443-480-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CHESTERTN	MD
2003-12-26	443-523-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SALISBURY	MD
2003-12-26	443-523-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SALISBURY	MD
2003-12-26	443-856-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	OCEAN CITY	MD
2003-12-26	443-856-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	OCEAN CITY	MD
2003-12-18	443-220-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-12-18	443-220-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-12-18	443-220-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-12-18	443-220-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-12-18	443-939-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2003-12-18	443-975-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PRINCEFRCK	MD
2003-12-16	443-412-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	CHURCHVL	MD
2003-12-16	443-770-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	ARGRGBSNIS	MD
2003-12-16	443-914-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	WORTHINGTN	MD
2003-12-05	443-534-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ANNAPOLIS	MD
2003-12-05	443-534-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ANNAPOLIS	MD
2003-12-05	443-848-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GLENBURNIE	MD
2003-12-05	443-880-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	SALISBURY	MD
2003-12-01	443-445-7XXX	7000–7999	Assigned	VERIZON MARYLAND, INC.	9212	ELKRIDGE	MD
2003-12-01	443-445-8XXX	8000–8999	Assigned	VERIZON MARYLAND, INC.	9212	ELKRIDGE	MD
2003-11-25	443-564-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2003-11-25	443-564-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2003-11-24	443-605-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WESTMINSTR	MD
2003-11-24	443-605-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WESTMINSTR	MD
2003-11-17	443-372-6XXX	6000–6999	Assigned	PAETEC ITEL, LLC	829J	EDGEWOOD	MD
2003-11-10	443-404-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	SOLOMONS	MD
2003-11-10	443-848-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2003-11-07	443-534-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ANNAPOLIS	MD
2003-11-07	443-534-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ANNAPOLIS	MD
2003-11-06	443-472-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	COLUMBIA	MD
2003-11-06	443-904-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.