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
2003-10-17	410-753-3XXX	3000–3999	Assigned	VDL, INC. DBA GLOBAL TELECOM BROKERS - MD	4492	PIKESVILLE	MD
2003-10-15	410-982-0XXX	0000–0999	Assigned	QUANTUM TELECOMMUNICATIONS, INC. - MD	2596	BALTIMORE	MD
2003-10-14	410-713-3XXX	3000–3999	Assigned	VERIZON MARYLAND, INC.	9212	SALISBURY	MD
2003-09-09	410-940-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ANNAPOLIS	MD
2003-09-09	410-940-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ANNAPOLIS	MD
2003-08-29	410-735-4XXX	4000–4999	Assigned	VERIZON MARYLAND, INC.	9212	BALTIMORE	MD
2003-08-12	410-735-6XXX	6000–6999	Assigned	VERIZON MARYLAND, INC.	9212	BALTIMORE	MD
2003-08-12	410-735-7XXX	7000–7999	Assigned	VERIZON MARYLAND, INC.	9212	BALTIMORE	MD
2003-08-05	410-609-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BRYNPKLNCM	MD
2003-07-29	410-695-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	ODENTON	MD
2003-07-29	410-698-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	FORK	MD
2003-07-29	410-702-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	REISTERSTN	MD
2003-07-29	410-774-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	CROFTON	MD
2003-07-29	410-793-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	SEVERNA PK	MD
2003-07-29	410-846-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	SEVERN	MD
2003-06-16	410-999-6XXX	6000–6999	Assigned	BALTIMORE-WASHINGTON TELEPHONE (BWT)	8697	GLENBURNIE	MD
2003-06-16	410-999-9XXX	9000–9999	Assigned	BALTIMORE-WASHINGTON TELEPHONE (BWT)	8697	GLENBURNIE	MD
2003-05-14	410-344-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	CHASE	MD
2003-04-15	410-624-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-04-15	410-624-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-04-15	410-624-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-04-15	410-662-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-04-09	410-701-4XXX	4000–4999	Assigned	VERIZON MARYLAND, INC.	9212	RANDALLSTN	MD
2003-03-14	410-713-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SALISBURY	MD
2003-03-14	410-713-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SALISBURY	MD
2003-03-13	410-209-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-03-13	410-209-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-03-13	410-209-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-02-28	410-476-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TRAPPE	MD
2003-02-28	410-970-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	SYKESVILLE	MD
2003-02-27	410-399-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	BEL AIR	MD
2003-02-13	410-350-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-02-13	410-350-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-02-13	410-350-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-02-13	410-585-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-02-13	410-585-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-02-13	410-949-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2003-02-06	410-891-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	COCKEYSVL	MD
2003-02-03	410-306-9XXX	9000–9999	Assigned	PAETEC ITEL, LLC	829J	ABERDEEN	MD
2003-02-03	410-344-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	CHASE	MD
2003-02-03	410-441-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	ELKTON	MD
2003-02-03	410-452-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	CARDIFF	MD
2003-02-03	410-457-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	DARLINGTON	MD
2003-02-03	410-489-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	GLENWOOD	MD
2003-02-03	410-514-0XXX	0000–0999	Assigned	PAETEC ITEL, LLC	829J	SEVERN	MD
2003-02-03	410-609-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	BRYNPKLNCM	MD
2003-02-03	410-616-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	TOWSON	MD
2003-02-03	410-691-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	GLENBURNIE	MD
2003-02-03	410-698-0XXX	0000–0999	Assigned	PAETEC ITEL, LLC	829J	FORK	MD
2003-02-03	410-753-8XXX	8000–8999	Assigned	PAETEC ITEL, LLC	829J	PIKESVILLE	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.