Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 240

BANDWIDTH.COM CLEC, LLC - MD 3

OPENTACT INC. 1

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
2018-10-09	240-840-3XXX	3000–3999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-10-09	240-840-4XXX	4000–4999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-10-09	240-840-5XXX	5000–5999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-10-09	240-971-2XXX	2000–2999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-10-09	240-971-3XXX	3000–3999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-10-09	240-971-4XXX	4000–4999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-10-09	240-971-5XXX	5000–5999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-09-24	240-260-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNG236Z14	MD
2018-09-24	240-579-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2018-09-24	240-584-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL236	MD
2018-09-24	240-784-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	MYERSVILLE	MD
2018-09-24	240-840-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2018-09-24	240-906-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2018-09-21	240-531-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN3	MD
2018-09-19	240-488-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	OAKLAND	MD
2018-09-19	240-860-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	CUMBERLAND	MD
2018-09-14	240-840-9XXX	9000–9999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-09-14	240-971-1XXX	1000–1999	Assigned	NUSO, LLC	551G	FREDERICK	MD
2018-09-13	240-521-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2018-09-13	240-840-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FREDERICK	MD
2018-09-11	240-860-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	CUMBERLAND	MD
2018-09-05	240-846-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	WSNGTNZN16	MD
2018-08-22	240-579-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2018-08-22	240-579-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2018-08-22	240-584-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL236	MD
2018-08-22	240-598-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	HUGHESVL	MD
2018-08-22	240-725-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LXTNPKGRML	MD
2018-08-22	240-840-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2018-08-22	240-870-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	MIDDLETOWN	MD
2018-08-22	240-906-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2018-08-21	240-628-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MECHANCSVL	MD
2018-08-20	240-219-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	RIDGE	MD
2018-08-20	240-628-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	MECHANCSVL	MD
2018-08-03	240-642-0XXX	0000–0999	Assigned	ADVANCED TELECOM SOLUTIONS, LLC	181J	WSNGTNZN10	MD
2018-07-30	240-628-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MECHANCSVL	MD
2018-07-25	240-488-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	OAKLAND	MD
2018-07-20	240-637-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN3	MD
2018-07-20	240-637-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN3	MD
2018-07-20	240-637-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN3	MD
2018-07-20	240-637-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN3	MD
2018-07-20	240-637-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN3	MD
2018-07-12	240-572-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LEONARDTN	MD
2018-07-12	240-584-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2018-07-12	240-584-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2018-07-12	240-584-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2018-07-09	240-572-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LEONARDTN	MD
2018-07-09	240-594-1XXX	1000–1999	Assigned	TELNYX LLC	073H	BITTINGER	MD
2018-06-29	240-306-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	GAITHERSBG	MD
2018-06-27	240-261-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GAITHERSBG	MD
2018-06-27	240-831-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.