Recent thousands-block assignments

2 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 410

ONVOY, LLC - MD 2

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
2007-03-06	410-487-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GLENBURNIE	MD
2007-02-13	410-412-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2007-01-16	410-861-2XXX	2000–2999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	7228	WESTMINSTR	MD
2007-01-12	410-441-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	7228	ELKTON	MD
2007-01-10	410-861-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	WESTMINSTR	MD
2007-01-09	410-861-6XXX	6000–6999	Assigned	COMCAST IP PHONE, LLC	318J	WESTMINSTR	MD
2007-01-09	410-975-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	SEVERNA PK	MD
2007-01-04	410-200-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	EASTON	MD
2007-01-04	410-487-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GLENBURNIE	MD
2006-12-13	410-660-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	ELKRIDGE	MD
2006-12-13	410-660-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	ELKRIDGE	MD
2006-12-13	410-660-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	ELKRIDGE	MD
2006-11-06	410-810-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CHESTERTN	MD
2006-10-20	410-376-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	VIENNA	MD
2006-09-26	410-841-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	SEVERNA PK	MD
2006-09-26	410-841-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	SEVERNA PK	MD
2006-09-25	410-988-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	ELLICOTTCY	MD
2006-09-19	410-567-7XXX	7000–7999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	7228	ELKRIDGE	MD
2006-09-14	410-824-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	WATERLO236	MD
2006-09-12	410-595-6XXX	6000–6999	Assigned	COMCAST IP PHONE, LLC	318J	GLENBURNIE	MD
2006-09-11	410-724-8XXX	8000–8999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WATERLO236	MD
2006-09-06	410-200-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	EASTON	MD
2006-09-01	410-874-7XXX	7000–7999	Assigned	COMCAST IP PHONE, LLC	318J	ODENTON	MD
2006-09-01	410-874-8XXX	8000–8999	Assigned	COMCAST IP PHONE, LLC	318J	ODENTON	MD
2006-08-29	410-202-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	SALISBURY	MD
2006-08-25	410-202-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	SALISBURY	MD
2006-08-24	410-616-9XXX	9000–9999	Assigned	COMCAST IP PHONE, LLC	318J	TOWSON	MD
2006-08-23	410-858-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ANNAPOLIS	MD
2006-08-04	410-660-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	ELKRIDGE	MD
2006-08-03	410-200-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	EASTON	MD
2006-08-03	410-845-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	SALISBURY	MD
2006-07-21	410-981-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	GLENBURNIE	MD
2006-07-17	410-564-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	ELKRIDGE	MD
2006-07-17	410-782-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	ELKRIDGE	MD
2006-07-11	410-878-0XXX	0000–0999	Assigned	COMCAST IP PHONE, LLC	318J	BALTIMORE	MD
2006-07-11	410-878-1XXX	1000–1999	Assigned	COMCAST IP PHONE, LLC	318J	BALTIMORE	MD
2006-07-11	410-878-9XXX	9000–9999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2006-07-06	410-202-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	SALISBURY	MD
2006-07-06	410-877-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2006-07-06	410-877-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2006-07-05	410-741-8XXX	8000–8999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	7325	WEST RIVER	MD
2006-07-05	410-849-1XXX	1000–1999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	7325	SHERWD FOR	MD
2006-06-27	410-346-8XXX	8000–8999	Assigned	VERIZON MARYLAND, INC.	9212	SILVER RUN	MD
2006-06-20	410-400-0XXX	0000–0999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2006-06-20	410-400-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2006-06-20	410-400-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2006-06-20	410-400-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2006-06-20	410-400-4XXX	4000–4999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2006-06-20	410-400-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2006-06-20	410-400-6XXX	6000–6999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	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.