Recent thousands-block assignments

70 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 667

NEW CINGULAR WIRELESS PCS, LLC - DC 38

ONVOY, LLC - MD 18

BANDWIDTH.COM CLEC, LLC - MD 6

METROPCS, INC. 2

INTRADO COMMUNICATIONS, LLC 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
2020-05-06	667-280-7XXX	7000–7999	Assigned	VONAGE AMERICA LLC	197D	ELLICOTTCY	MD
2020-05-04	667-299-0XXX	0000–0999	Assigned	VONAGE AMERICA LLC	197D	ANNAPOLIS	MD
2020-05-04	667-299-1XXX	1000–1999	Assigned	VONAGE AMERICA LLC	197D	ANNAPOLIS	MD
2020-05-01	667-278-0XXX	0000–0999	Assigned	VONAGE AMERICA LLC	197D	TOWSON	MD
2020-05-01	667-278-1XXX	1000–1999	Assigned	VONAGE AMERICA LLC	197D	TOWSON	MD
2020-04-13	667-299-9XXX	9000–9999	Assigned	HD CARRIER LLC	321J	ANNAPOLIS	MD
2020-04-13	667-399-8XXX	8000–8999	Assigned	HD CARRIER LLC	321J	UNION BDG	MD
2020-04-13	667-399-9XXX	9000–9999	Assigned	HD CARRIER LLC	321J	UNION BDG	MD
2020-04-08	667-270-9XXX	9000–9999	Assigned	HD CARRIER LLC	321J	ANNAPOLIS	MD
2020-04-08	667-600-7XXX	7000–7999	Assigned	HD CARRIER LLC	321J	BALTIMORE	MD
2020-04-08	667-770-5XXX	5000–5999	Assigned	HD CARRIER LLC	321J	BALTIMORE	MD
2020-04-07	667-930-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-02	667-278-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2020-04-02	667-278-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2020-04-02	667-278-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2020-04-02	667-278-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2020-04-01	667-776-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-01	667-776-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-01	667-776-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-01	667-776-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-01	667-776-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-01	667-776-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-01	667-776-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-04-01	667-776-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-03-31	667-265-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	VIENNA	MD
2020-03-31	667-265-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	VIENNA	MD
2020-03-31	667-279-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	BISHOPVL	MD
2020-03-31	667-279-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	BISHOPVL	MD
2020-03-30	667-261-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	COLUMBIA	MD
2020-03-30	667-261-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	COLUMBIA	MD
2020-03-30	667-261-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	COLUMBIA	MD
2020-03-25	667-271-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	SALISBURY	MD
2020-03-24	667-600-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2020-03-23	667-372-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CAMBRIDGE	MD
2020-03-23	667-808-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	EASTON	MD
2020-03-17	667-270-8XXX	8000–8999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	ANNAPOLIS	MD
2020-03-17	667-900-6XXX	6000–6999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	BALTIMORE	MD
2020-03-10	667-263-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	DUNDALK	MD
2020-03-10	667-278-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2020-03-05	667-275-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TOWSON	MD
2020-02-14	667-221-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	7228	SALISBURY	MD
2020-02-12	667-261-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	COLUMBIA	MD
2020-02-12	667-261-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	COLUMBIA	MD
2020-02-12	667-261-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	COLUMBIA	MD
2020-01-28	667-276-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	7228	BEL AIR	MD
2020-01-27	667-256-7XXX	7000–7999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	ABERDEEN	MD
2019-12-26	667-261-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	COLUMBIA	MD
2019-11-29	667-270-7XXX	7000–7999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	ANNAPOLIS	MD
2019-11-29	667-275-7XXX	7000–7999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	TOWSON	MD
2019-11-29	667-776-0XXX	0000–0999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	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.