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
2026-09-16	443-315-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2026-09-16	443-315-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2026-09-15	443-335-7XXX	7000–7999	Assigned	OPENTACT INC.	824J	BRYNPKLNCM	MD
2026-09-14	443-203-7XXX	7000–7999	Assigned	VERSATEL LLC	962J	WEST RIVER	MD
2026-09-14	443-284-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	WATERLO238	MD
2026-09-09	443-335-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	BRYNPKLNCM	MD
2026-09-04	443-516-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	SYKESVILLE	MD
2026-09-04	443-516-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	SYKESVILLE	MD
2026-09-03	443-657-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	RANDALLSTN	MD
2026-09-01	443-299-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2026-09-01	443-305-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ARGRGBSNIS	MD
2026-09-01	443-305-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ARGRGBSNIS	MD
2026-08-26	443-293-9XXX	9000–9999	Assigned	ONVOY, LLC - MD	876D	WESTMINSTR	MD
2026-08-26	443-405-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	RANDALLSTN	MD
2026-08-26	443-405-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	RANDALLSTN	MD
2026-08-26	443-576-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	RANDALLSTN	MD
2026-08-25	443-329-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WATERLO236	MD
2026-08-19	443-313-0XXX	0000–0999	Assigned	TERRA NOVA TELECOM INC.	145J	FORK	MD
2026-08-19	443-587-6XXX	6000–6999	Assigned	TERRA NOVA TELECOM INC.	145J	EDGEWOOD	MD
2026-08-19	443-728-9XXX	9000–9999	Assigned	TERRA NOVA TELECOM INC.	145J	BERLIN	MD
2026-08-13	443-307-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BEL AIR	MD
2026-08-12	443-581-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	CHASE	MD
2026-08-10	443-312-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BRYNPKLNCM	MD
2026-08-07	443-302-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	CROFTON	MD
2026-08-06	443-495-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	PARKVILLE	MD
2026-08-04	443-305-0XXX	0000–0999	Assigned	ONVOY SPECTRUM, LLC	624H	ARGRGBSNIS	MD
2026-07-22	443-335-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	BRYNPKLNCM	MD
2026-07-14	443-408-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	SPARROWSPT	MD
2026-06-30	443-566-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	CHESAPKECY	MD
2026-06-25	443-517-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GLENBURNIE	MD
2026-06-10	443-404-2XXX	2000–2999	Assigned	TERRA NOVA TELECOM INC.	145J	SOLOMONS	MD
2026-06-10	443-581-4XXX	4000–4999	Assigned	TERRA NOVA TELECOM INC.	145J	CHASE	MD
2026-05-29	443-565-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	RANDALLSTN	MD
2026-05-27	443-519-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	TOWSON	MD
2026-02-20	443-874-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2026-01-07	443-686-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FALLSTON	MD
2025-12-31	443-443-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	ARBUTUS	MD
2025-12-18	443-284-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	WATERLO238	MD
2025-12-11	443-298-7XXX	7000–7999	Assigned	TERRA NOVA TELECOM INC.	145J	EASTON	MD
2025-12-11	443-587-3XXX	3000–3999	Assigned	TERRA NOVA TELECOM INC.	145J	EDGEWOOD	MD
2025-12-11	443-971-2XXX	2000–2999	Assigned	TERRA NOVA TELECOM INC.	145J	TANEYTOWN	MD
2025-12-11	443-981-6XXX	6000–6999	Assigned	TERRA NOVA TELECOM INC.	145J	FALLSTON	MD
2025-11-26	443-594-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	SPARROWSPT	MD
2025-11-26	443-594-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	SPARROWSPT	MD
2025-11-20	443-390-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	CHURCHVL	MD
2025-10-08	443-307-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BEL AIR	MD
2025-10-06	443-293-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	WESTMINSTR	MD
2025-10-06	443-675-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	RANDALLSTN	MD
2025-09-18	443-299-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	FALLSTON	MD
2025-09-18	443-390-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	CHURCHVL	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.