Recent thousands-block assignments

1 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 301

ONVOY, 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
2014-12-03	301-985-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN4	MD
2014-12-02	301-851-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	WSHNGTNZN4	MD
2014-11-13	301-269-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSHNGTNZN2	MD
2014-11-13	301-458-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2014-11-13	301-624-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2014-11-13	301-624-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2014-11-13	301-665-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	HAGERSTOWN	MD
2014-11-13	301-665-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	HAGERSTOWN	MD
2014-11-13	301-683-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2014-11-07	301-732-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	FREDERICK	MD
2014-10-29	301-761-6XXX	6000–6999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSNGTNZN11	MD
2014-10-27	301-501-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	OAKLAND	MD
2014-10-27	301-891-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2014-10-27	301-921-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSNGTNZN10	MD
2014-10-22	301-799-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	KEEDYSVL	MD
2014-10-22	301-799-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	KEEDYSVL	MD
2014-10-13	301-232-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2014-10-13	301-232-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2014-10-13	301-232-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2014-10-10	301-273-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN3	MD
2014-10-10	301-273-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN3	MD
2014-10-10	301-888-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN16	MD
2014-10-10	301-888-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN16	MD
2014-10-10	301-945-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2014-10-10	301-945-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2014-10-09	301-265-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN6	MD
2014-10-09	301-265-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN6	MD
2014-10-09	301-683-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN4	MD
2014-10-09	301-804-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	ASHTON236	MD
2014-10-09	301-804-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	ASHTON236	MD
2014-10-09	301-918-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN4	MD
2014-09-29	301-407-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	GAITHERSBG	MD
2014-09-29	301-754-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN3	MD
2014-09-29	301-761-7XXX	7000–7999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSNGTNZN11	MD
2014-09-24	301-857-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	CLEAR SPG	MD
2014-09-23	301-847-9XXX	9000–9999	Assigned	COMCAST IP PHONE, LLC	318J	WSNGTNZN12	MD
2014-09-23	301-882-6XXX	6000–6999	Assigned	PAETEC ITEL, LLC	829J	NEW MARKET	MD
2014-09-22	301-245-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BITTINGER	MD
2014-09-22	301-969-7XXX	7000–7999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	7325	BRUNSWICK	MD
2014-09-10	301-732-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2014-09-10	301-850-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSNG236Z14	MD
2014-09-10	301-851-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2014-09-10	301-851-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2014-09-09	301-241-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	HIGHFIELD	MD
2014-09-04	301-590-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2014-09-04	301-605-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2014-09-04	301-750-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	FRIENDSVL	MD
2014-09-04	301-921-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2014-09-02	301-557-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2014-09-02	301-660-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	KEEDYSVL	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.