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
2023-09-14	667-445-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-09-14	667-445-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-09-14	667-445-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-09-14	667-445-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-09-14	667-452-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-09-14	667-452-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-09-14	667-452-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CATONSVL	MD
2023-09-13	667-405-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	GLENBURNIE	MD
2023-09-11	667-404-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	PRINCEFRCK	MD
2023-09-11	667-451-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FORK	MD
2023-09-07	667-260-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2023-09-07	667-435-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BALTIMORE	MD
2023-09-07	667-436-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	TOWSON	MD
2023-09-07	667-436-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	TOWSON	MD
2023-09-01	667-375-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CHASE	MD
2023-09-01	667-375-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CHASE	MD
2023-09-01	667-390-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	RANDALLSTN	MD
2023-08-31	667-349-5XXX	5000–5999	Assigned	COMMIO, LLC	939H	STILL POND	MD
2023-08-31	667-349-6XXX	6000–6999	Assigned	COMMIO, LLC	939H	STILL POND	MD
2023-08-31	667-349-7XXX	7000–7999	Assigned	COMMIO, LLC	939H	STILL POND	MD
2023-08-31	667-349-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	STILL POND	MD
2023-08-31	667-349-9XXX	9000–9999	Assigned	COMMIO, LLC	939H	STILL POND	MD
2023-08-31	667-415-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-31	667-415-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-31	667-449-0XXX	0000–0999	Assigned	COMMIO, LLC	939H	PRESTON	MD
2023-08-31	667-449-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	PRESTON	MD
2023-08-31	667-449-2XXX	2000–2999	Assigned	COMMIO, LLC	939H	PRESTON	MD
2023-08-31	667-449-3XXX	3000–3999	Assigned	COMMIO, LLC	939H	PRESTON	MD
2023-08-31	667-449-4XXX	4000–4999	Assigned	COMMIO, LLC	939H	PRESTON	MD
2023-08-31	667-450-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-31	667-450-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-31	667-450-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-31	667-450-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-31	667-450-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-31	667-450-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ABERDEEN	MD
2023-08-29	667-287-5XXX	5000–5999	Assigned	COMMIO, LLC	939H	BISHOPVL	MD
2023-08-29	667-287-6XXX	6000–6999	Assigned	COMMIO, LLC	939H	BISHOPVL	MD
2023-08-29	667-287-7XXX	7000–7999	Assigned	COMMIO, LLC	939H	BISHOPVL	MD
2023-08-29	667-287-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	BISHOPVL	MD
2023-08-29	667-287-9XXX	9000–9999	Assigned	COMMIO, LLC	939H	BISHOPVL	MD
2023-08-29	667-316-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	OXFORD	MD
2023-08-29	667-316-2XXX	2000–2999	Assigned	COMMIO, LLC	939H	OXFORD	MD
2023-08-29	667-316-4XXX	4000–4999	Assigned	COMMIO, LLC	939H	OXFORD	MD
2023-08-29	667-316-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	OXFORD	MD
2023-08-29	667-316-9XXX	9000–9999	Assigned	COMMIO, LLC	939H	OXFORD	MD
2023-08-29	667-361-0XXX	0000–0999	Assigned	COMMIO, LLC	939H	CHURCHHILL	MD
2023-08-29	667-361-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	CHURCHHILL	MD
2023-08-29	667-361-2XXX	2000–2999	Assigned	COMMIO, LLC	939H	CHURCHHILL	MD
2023-08-29	667-361-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	CHURCHHILL	MD
2023-08-29	667-361-9XXX	9000–9999	Assigned	COMMIO, LLC	939H	CHURCHHILL	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.