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
2016-02-17	301-485-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN6	MD
2016-02-17	301-867-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSNG236Z14	MD
2016-02-17	301-867-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	WSNG236Z14	MD
2016-02-16	301-349-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	POOLESVL	MD
2016-02-12	301-414-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	DAMASCS236	MD
2016-02-12	301-685-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	DAMASCS236	MD
2016-02-12	301-769-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LEONARDTN	MD
2016-02-10	301-281-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN6	MD
2016-02-10	301-281-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN6	MD
2016-02-10	301-665-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	HAGERSTOWN	MD
2016-02-09	301-348-8XXX	8000–8999	Assigned	COMCAST IP PHONE, LLC	318J	WSNGTNZN11	MD
2016-02-03	301-273-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN3	MD
2016-02-03	301-579-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	BRANDYWINE	MD
2016-02-03	301-579-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	BRANDYWINE	MD
2016-01-29	301-798-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	DAMASCS240	MD
2016-01-28	301-458-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN4	MD
2016-01-28	301-851-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN4	MD
2016-01-25	301-263-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN2	MD
2016-01-25	301-360-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	FREDERICK	MD
2016-01-21	301-822-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2016-01-13	301-284-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN10	MD
2016-01-13	301-945-5XXX	5000–5999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSNGTNZN11	MD
2016-01-07	301-232-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2016-01-07	301-232-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2016-01-07	301-260-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2016-01-07	301-476-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2015-12-16	301-329-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	ASHTON238	MD
2015-12-08	301-321-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2015-12-08	301-321-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2015-12-03	301-898-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	FREDERICK	MD
2015-11-09	301-543-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2015-11-09	301-543-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2015-10-28	301-532-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL238	MD
2015-10-28	301-532-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL238	MD
2015-10-28	301-631-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2015-10-28	301-665-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	HAGERSTOWN	MD
2015-10-28	301-682-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2015-10-28	301-714-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	HAGERSTOWN	MD
2015-10-27	301-909-1XXX	1000–1999	Assigned	COMCAST IP PHONE, LLC	318J	WSHNGTNZN5	MD
2015-10-13	301-269-9XXX	9000–9999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSHNGTNZN2	MD
2015-10-12	301-264-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	MT SAVAGE	MD
2015-10-12	301-453-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	KITZMILLER	MD
2015-10-12	301-750-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	FRIENDSVL	MD
2015-10-08	301-478-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	FLINTSTONE	MD
2015-09-29	301-304-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WALKERSVL	MD
2015-09-29	301-363-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	DAMASCS240	MD
2015-09-29	301-857-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	CLEAR SPG	MD
2015-09-29	301-882-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	NEW MARKET	MD
2015-09-29	301-969-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BRUNSWICK	MD
2015-09-28	301-687-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	FROSTBURG	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.