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
2021-12-17	443-592-1XXX	1000–1999	Assigned	ONVOY SPECTRUM, LLC	624H	ELKRIDGE	MD
2021-12-17	443-592-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	ELKRIDGE	MD
2021-12-16	443-987-9XXX	9000–9999	Assigned	ONVOY SPECTRUM, LLC	624H	BEL AIR	MD
2021-12-14	443-685-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SEVERN	MD
2021-12-07	443-758-9XXX	9000–9999	Assigned	TERRA NOVA TELECOM INC.	145J	ANNAPOLIS	MD
2021-12-03	443-486-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	PRINCEFRCK	MD
2021-11-05	443-645-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	MILLERSVL	MD
2021-11-03	443-936-1XXX	1000–1999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	ELKRIDGE	MD
2021-11-01	443-437-2XXX	2000–2999	Assigned	TERRA NOVA TELECOM INC.	145J	POCOMOKE	MD
2021-10-27	443-485-2XXX	2000–2999	Assigned	ONVOY SPECTRUM, LLC	624H	ELKTON	MD
2021-10-27	443-485-3XXX	3000–3999	Assigned	ONVOY SPECTRUM, LLC	624H	ELKTON	MD
2021-10-27	443-543-7XXX	7000–7999	Assigned	ONVOY SPECTRUM, LLC	624H	ARBUTUS	MD
2021-10-27	443-709-1XXX	1000–1999	Assigned	ONVOY SPECTRUM, LLC	624H	ARBUTUS	MD
2021-10-27	443-899-0XXX	0000–0999	Assigned	ONVOY SPECTRUM, LLC	624H	WATERLO238	MD
2021-10-26	443-696-1XXX	1000–1999	Assigned	ONVOY SPECTRUM, LLC	624H	DUNDALK	MD
2021-10-26	443-696-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	DUNDALK	MD
2021-10-22	443-448-2XXX	2000–2999	Assigned	ONVOY SPECTRUM, LLC	624H	DENTON	MD
2021-10-06	443-264-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PIKESVILLE	MD
2021-10-06	443-264-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PIKESVILLE	MD
2021-10-06	443-442-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PARKVILLE	MD
2021-10-06	443-485-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	ELKTON	MD
2021-10-06	443-631-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CATONSVL	MD
2021-09-28	443-485-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ELKTON	MD
2021-09-14	443-487-9XXX	9000–9999	Assigned	COMCAST IP PHONE, LLC	318J	WESTMINSTR	MD
2021-09-10	443-830-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CATONSVL	MD
2021-09-02	443-746-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	EASTON	MD
2021-08-30	443-545-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	COLUMBIA	MD
2021-08-24	443-293-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WESTMINSTR	MD
2021-08-24	443-312-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	BRYNPKLNCM	MD
2021-08-24	443-381-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	REISTERSTN	MD
2021-08-24	443-486-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	PRINCEFRCK	MD
2021-08-24	443-673-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	BRYNPKLNCM	MD
2021-08-24	443-696-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	DUNDALK	MD
2021-08-24	443-702-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	ARGRGBSNIS	MD
2021-08-24	443-702-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	ARGRGBSNIS	MD
2021-08-24	443-830-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	CATONSVL	MD
2021-08-24	443-940-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	PIKESVILLE	MD
2021-08-24	443-940-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	PIKESVILLE	MD
2021-08-11	443-590-2XXX	2000–2999	Assigned	ONVOY SPECTRUM, LLC	624H	REISTERSTN	MD
2021-08-10	443-926-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ANNAPOLIS	MD
2021-08-03	443-332-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	CROFTON	MD
2021-08-03	443-332-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	CROFTON	MD
2021-07-22	443-200-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	WOODLAWN	MD
2021-07-22	443-702-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	ARGRGBSNIS	MD
2021-06-21	443-372-4XXX	4000–4999	Assigned	TERRA NOVA TELECOM INC.	145J	EDGEWOOD	MD
2021-06-21	443-485-9XXX	9000–9999	Assigned	TERRA NOVA TELECOM INC.	145J	ELKTON	MD
2021-06-21	443-486-0XXX	0000–0999	Assigned	TERRA NOVA TELECOM INC.	145J	PRINCEFRCK	MD
2021-06-16	443-300-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	SYKESVILLE	MD
2021-06-16	443-300-9XXX	9000–9999	Assigned	ONVOY, LLC - MD	876D	SYKESVILLE	MD
2021-06-16	443-899-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	WATERLO238	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.