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
2023-03-02	667-419-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-03-02	667-419-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-03-02	667-419-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-03-02	667-419-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-03-02	667-419-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-03-02	667-419-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-03-02	667-429-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-03-02	667-429-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-03-02	667-429-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-03-02	667-429-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-03-02	667-429-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-03-02	667-661-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	SNOW HILL	MD
2023-02-28	667-386-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	ARBUTUS	MD
2023-02-28	667-386-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	ARBUTUS	MD
2023-02-22	667-404-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PRINCEFRCK	MD
2023-02-17	667-394-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	NEWWINDSOR	MD
2023-02-13	667-429-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-02-13	667-429-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PIKESVILLE	MD
2023-02-10	667-415-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-02-10	667-415-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-02-10	667-415-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-02-10	667-425-1XXX	1000–1999	Assigned	NUSO, LLC	732J	BALTIMORE	MD
2023-02-10	667-428-1XXX	1000–1999	Assigned	NUSO, LLC	732J	SALISBURY	MD
2023-02-10	667-466-1XXX	1000–1999	Assigned	BOOST SUBSCRIBERCO L.L.C.	490J	HAVREGRACE	MD
2023-02-09	667-417-8XXX	8000–8999	Assigned	BOOST SUBSCRIBERCO L.L.C.	490J	GLENBURNIE	MD
2023-02-09	667-417-9XXX	9000–9999	Assigned	BOOST SUBSCRIBERCO L.L.C.	490J	GLENBURNIE	MD
2023-02-08	667-371-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ELLICOTTCY	MD
2023-02-08	667-386-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ARBUTUS	MD
2023-02-08	667-386-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	ARBUTUS	MD
2023-02-08	667-424-1XXX	1000–1999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ODENTON	MD
2023-02-08	667-424-2XXX	2000–2999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ODENTON	MD
2023-02-08	667-424-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ODENTON	MD
2023-02-08	667-424-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ODENTON	MD
2023-02-08	667-424-5XXX	5000–5999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ODENTON	MD
2023-01-30	667-526-0XXX	0000–0999	Assigned	TELNYX LLC	073H	CENTREVL	MD
2023-01-30	667-644-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SEVERNA PK	MD
2023-01-24	667-423-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	ANNAPOLIS	MD
2023-01-24	667-423-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	ANNAPOLIS	MD
2023-01-24	667-423-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	ANNAPOLIS	MD
2023-01-17	667-238-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	PRESTON	MD
2023-01-17	667-414-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2023-01-17	667-414-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BALTIMORE	MD
2023-01-17	667-925-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BEL AIR	MD
2023-01-06	667-340-6XXX	6000–6999	Assigned	COMCAST IP PHONE, LLC	318J	CHURCHVL	MD
2023-01-06	667-416-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ESSEX	MD
2023-01-06	667-419-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CATONSVL	MD
2023-01-06	667-423-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ANNAPOLIS	MD
2023-01-04	667-386-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	ARBUTUS	MD
2022-12-30	667-264-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	DELMAR	MD
2022-12-30	667-301-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	PRINCEFRCK	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.