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
2008-05-19	443-929-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PIKESVILLE	MD
2008-05-09	443-630-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2008-05-06	443-305-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	ARGRGBSNIS	MD
2008-05-06	443-348-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WOODLAWN	MD
2008-05-06	443-453-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2008-05-06	443-485-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	ELKTON	MD
2008-05-06	443-505-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	ESSEX	MD
2008-05-06	443-510-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ANNAPOLIS	MD
2008-05-06	443-669-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	DELMAR	MD
2008-05-06	443-669-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	DELMAR	MD
2008-05-06	443-715-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	NORTH EAST	MD
2008-05-02	443-470-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	TOWSON	MD
2008-04-28	443-305-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	ARGRGBSNIS	MD
2008-04-23	443-517-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	GLENBURNIE	MD
2008-04-18	443-519-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	TOWSON	MD
2008-04-18	443-640-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	BEL AIR	MD
2008-04-18	443-664-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	OCEAN CITY	MD
2008-04-15	443-693-4XXX	4000–4999	Assigned	PAETEC ITEL, LLC	829J	PERRYVILLE	MD
2008-04-14	443-546-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	COLUMBIA	MD
2008-04-10	443-743-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2008-04-02	443-510-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ANNAPOLIS	MD
2008-04-02	443-909-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2008-04-02	443-909-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2008-04-02	443-909-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2008-04-02	443-987-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BEL AIR	MD
2008-03-27	443-272-7XXX	7000–7999	Assigned	COMCAST IP PHONE, LLC	318J	RANDALLSTN	MD
2008-03-27	443-968-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	PRINCEFRCK	MD
2008-03-24	443-517-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2008-03-24	443-640-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BEL AIR	MD
2008-03-24	443-653-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PARKVILLE	MD
2008-03-24	443-825-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2008-03-24	443-929-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PIKESVILLE	MD
2008-03-24	443-962-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2008-03-24	443-962-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2008-03-20	443-449-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-683-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-708-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-759-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-759-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-813-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-839-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-934-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-20	443-934-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2008-03-19	443-486-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PRINCEFRCK	MD
2008-03-14	443-736-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	SALISBURY	MD
2008-03-14	443-736-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	SALISBURY	MD
2008-03-07	443-399-8XXX	8000–8999	Assigned	COMCAST IP PHONE, LLC	318J	DUNDALK	MD
2008-03-06	443-718-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	COLUMBIA	MD
2008-03-06	443-718-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	COLUMBIA	MD
2008-03-05	443-487-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WESTMINSTR	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.