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
2021-09-14	667-263-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	DUNDALK	MD
2021-09-14	667-263-5XXX	5000–5999	Assigned	COMMIO, LLC	939H	DUNDALK	MD
2021-09-14	667-263-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	DUNDALK	MD
2021-09-14	667-315-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	BEL AIR	MD
2021-09-14	667-315-7XXX	7000–7999	Assigned	COMMIO, LLC	939H	BEL AIR	MD
2021-09-14	667-315-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	BEL AIR	MD
2021-09-14	667-315-9XXX	9000–9999	Assigned	COMMIO, LLC	939H	BEL AIR	MD
2021-09-14	667-678-6XXX	6000–6999	Assigned	COMMIO, LLC	939H	COLUMBIA	MD
2021-09-14	667-678-7XXX	7000–7999	Assigned	COMMIO, LLC	939H	COLUMBIA	MD
2021-09-14	667-678-8XXX	8000–8999	Assigned	COMMIO, LLC	939H	COLUMBIA	MD
2021-09-14	667-678-9XXX	9000–9999	Assigned	COMMIO, LLC	939H	COLUMBIA	MD
2021-09-13	667-335-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2021-09-13	667-335-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2021-09-13	667-577-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	ELKTON	MD
2021-09-13	667-577-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	ELKTON	MD
2021-09-10	667-276-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	BEL AIR	MD
2021-09-10	667-301-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	PRINCEFRCK	MD
2021-09-10	667-318-6XXX	6000–6999	Assigned	ONVOY SPECTRUM, LLC	624H	COCKEYSVL	MD
2021-09-10	667-325-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2021-09-10	667-325-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2021-09-10	667-325-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	GLENBURNIE	MD
2021-09-10	667-327-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CAMBRIDGE	MD
2021-09-10	667-403-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	TOWSON	MD
2021-09-10	667-403-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	TOWSON	MD
2021-09-10	667-657-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CHASE	MD
2021-09-10	667-657-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CHASE	MD
2021-09-10	667-678-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	COLUMBIA	MD
2021-09-10	667-678-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	COLUMBIA	MD
2021-09-08	667-340-9XXX	9000–9999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	CHURCHVL	MD
2021-09-08	667-380-9XXX	9000–9999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	ANNAPOLIS	MD
2021-09-08	667-477-9XXX	9000–9999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	HAMPSTEAD	MD
2021-09-01	667-338-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	CROFTON	MD
2021-09-01	667-338-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	CROFTON	MD
2021-09-01	667-338-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	CROFTON	MD
2021-09-01	667-339-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	SYKESVILLE	MD
2021-09-01	667-339-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	SYKESVILLE	MD
2021-09-01	667-340-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	CHURCHVL	MD
2021-09-01	667-340-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	CHURCHVL	MD
2021-09-01	667-341-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	DELMAR	MD
2021-09-01	667-342-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	PRESTON	MD
2021-09-01	667-348-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	RIDGELY	MD
2021-09-01	667-349-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	STILL POND	MD
2021-09-01	667-350-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	WINGATE	MD
2021-09-01	667-380-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	ANNAPOLIS	MD
2021-09-01	667-403-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	TOWSON	MD
2021-08-31	667-678-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	COLUMBIA	MD
2021-08-30	667-323-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	QUEENSTOWN	MD
2021-08-30	667-337-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	CENTREVL	MD
2021-08-30	667-356-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	SEVERN	MD
2021-08-30	667-357-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	GREENSBORO	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.