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
2023-04-18	443-665-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	NANTICOKE	MD
2023-03-30	443-492-7XXX	7000–7999	Assigned	TERRA NOVA TELECOM INC.	145J	ELKRIDGE	MD
2023-03-30	443-521-8XXX	8000–8999	Assigned	TERRA NOVA TELECOM INC.	145J	CAMBRIDGE	MD
2023-03-22	443-408-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	SPARROWSPT	MD
2023-02-08	443-544-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-02-08	443-701-6XXX	6000–6999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ARBUTUS	MD
2023-01-30	443-673-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	BRYNPKLNCM	MD
2023-01-06	443-758-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ANNAPOLIS	MD
2023-01-06	443-837-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ANNAPOLIS	MD
2022-11-28	443-951-6XXX	6000–6999	Assigned	TELNYX LLC	073H	ANNAPOLIS	MD
2022-11-15	443-660-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2022-10-25	443-577-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	GLENBURNIE	MD
2022-10-24	443-748-9XXX	9000–9999	Assigned	ONVOY, LLC - MD	876D	MILLERSVL	MD
2022-10-14	443-333-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	ANNAPOLIS	MD
2022-10-14	443-699-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	ANNAPOLIS	MD
2022-10-14	443-714-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	ANNAPOLIS	MD
2022-10-10	443-544-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PIKESVILLE	MD
2022-09-21	443-450-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2022-09-21	443-940-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2022-09-16	443-487-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	WESTMINSTR	MD
2022-09-07	443-229-8XXX	8000–8999	Assigned	VONAGE AMERICA LLC	197D	SEVERNA PK	MD
2022-09-07	443-307-9XXX	9000–9999	Assigned	TERRA NOVA TELECOM INC.	145J	BEL AIR	MD
2022-09-07	443-373-6XXX	6000–6999	Assigned	TERRA NOVA TELECOM INC.	145J	OCEAN CITY	MD
2022-09-07	443-830-8XXX	8000–8999	Assigned	VONAGE AMERICA LLC	197D	CATONSVL	MD
2022-09-06	443-205-8XXX	8000–8999	Assigned	TERRA NOVA TELECOM INC.	145J	CAMBRIDGE	MD
2022-09-01	443-817-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ARGRGBSNIS	MD
2022-09-01	443-972-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	CAMBRIDGE	MD
2022-08-30	443-661-9XXX	9000–9999	Assigned	ONVOY, LLC - MD	876D	WATERLO238	MD
2022-08-22	443-305-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	ARGRGBSNIS	MD
2022-08-04	443-757-6XXX	6000–6999	Assigned	TERRA NOVA TELECOM INC.	145J	ELKRIDGE	MD
2022-07-26	443-724-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	EASTON	MD
2022-07-13	443-702-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ARGRGBSNIS	MD
2022-07-06	443-963-8XXX	8000–8999	Assigned	TERRA NOVA TELECOM INC.	145J	BALTIMORE	MD
2022-07-05	443-746-9XXX	9000–9999	Assigned	TELNYX LLC	073H	EASTON	MD
2022-04-08	443-313-2XXX	2000–2999	Assigned	TERRA NOVA TELECOM INC.	145J	FORK	MD
2022-03-28	443-712-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	REISTERSTN	MD
2022-03-11	443-233-4XXX	4000–4999	Assigned	TERRA NOVA TELECOM INC.	145J	VIENNA	MD
2022-03-11	443-312-3XXX	3000–3999	Assigned	TERRA NOVA TELECOM INC.	145J	BRYNPKLNCM	MD
2022-02-24	443-407-3XXX	3000–3999	Assigned	ONVOY SPECTRUM, LLC	624H	DUNDALK	MD
2022-02-18	443-953-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	SALISBURY	MD
2022-02-17	443-592-0XXX	0000–0999	Assigned	ONVOY SPECTRUM, LLC	624H	ELKRIDGE	MD
2022-02-17	443-592-2XXX	2000–2999	Assigned	ONVOY SPECTRUM, LLC	624H	ELKRIDGE	MD
2022-01-26	443-483-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	CARDIFF	MD
2022-01-14	443-483-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	CARDIFF	MD
2022-01-14	443-483-9XXX	9000–9999	Assigned	ONVOY SPECTRUM, LLC	624H	CARDIFF	MD
2022-01-12	443-781-1XXX	1000–1999	Assigned	ONVOY SPECTRUM, LLC	624H	ARGRGBSNIS	MD
2022-01-12	443-781-2XXX	2000–2999	Assigned	ONVOY SPECTRUM, LLC	624H	ARGRGBSNIS	MD
2022-01-07	443-748-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	MILLERSVL	MD
2022-01-05	443-515-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	CAMBRIDGE	MD
2021-12-28	443-484-9XXX	9000–9999	Assigned	ONVOY SPECTRUM, LLC	624H	EDGEWOOD	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.