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
2017-09-18	240-856-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LAUREL238	MD
2017-09-15	240-537-0XXX	0000–0999	Assigned	ATLANTECH ONLINE, INC. - MD	361H	HAGERSTOWN	MD
2017-09-08	240-877-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	FREDERICK	MD
2017-09-07	240-260-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	WSNG236Z14	MD
2017-09-07	240-306-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GAITHERSBG	MD
2017-09-06	240-725-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - DC	7529	LXTNPKGRML	MD
2017-08-31	240-267-3XXX	3000–3999	Assigned	METROPCS, INC.	5562	HAGERSTOWN	MD
2017-08-31	240-636-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL236	MD
2017-08-31	240-906-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2017-08-22	240-267-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	HAGERSTOWN	MD
2017-08-22	240-268-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSNGTNZN10	MD
2017-08-17	240-484-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2017-08-17	240-484-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2017-08-17	240-484-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2017-08-17	240-484-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2017-08-15	240-802-5XXX	5000–5999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSHNGTNZN2	MD
2017-08-15	240-858-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSHNGTNZN2	MD
2017-08-15	240-858-7XXX	7000–7999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSHNGTNZN2	MD
2017-08-09	240-918-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2017-08-09	240-918-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2017-08-04	240-878-6XXX	6000–6999	Assigned	COMMIO, LLC	939H	HAGERSTOWN	MD
2017-07-27	240-307-8XXX	8000–8999	Assigned	TELNYX LLC	073H	EMMITSBURG	MD
2017-07-27	240-356-9XXX	9000–9999	Assigned	TELNYX LLC	073H	MYERSVILLE	MD
2017-07-27	240-436-8XXX	8000–8999	Assigned	TELNYX LLC	073H	BUCKEYSTN	MD
2017-07-27	240-451-6XXX	6000–6999	Assigned	TELNYX LLC	073H	THURMONT	MD
2017-07-27	240-488-8XXX	8000–8999	Assigned	TELNYX LLC	073H	OAKLAND	MD
2017-07-27	240-617-8XXX	8000–8999	Assigned	TELNYX LLC	073H	HIGHFIELD	MD
2017-07-27	240-657-9XXX	9000–9999	Assigned	TELNYX LLC	073H	FROSTBURG	MD
2017-07-27	240-732-8XXX	8000–8999	Assigned	TELNYX LLC	073H	MOUNT AIRY	MD
2017-07-27	240-734-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	7228	SMITHSBURG	MD
2017-07-27	240-734-9XXX	9000–9999	Assigned	TELNYX LLC	073H	SMITHSBURG	MD
2017-07-27	240-774-8XXX	8000–8999	Assigned	TELNYX LLC	073H	LONACONING	MD
2017-07-27	240-775-8XXX	8000–8999	Assigned	TELNYX LLC	073H	WESTERNPT	MD
2017-07-27	240-816-9XXX	9000–9999	Assigned	TELNYX LLC	073H	KEEDYSVL	MD
2017-07-27	240-860-8XXX	8000–8999	Assigned	TELNYX LLC	073H	CUMBERLAND	MD
2017-07-27	240-862-0XXX	0000–0999	Assigned	TELNYX LLC	073H	MT SAVAGE	MD
2017-07-27	240-870-1XXX	1000–1999	Assigned	TELNYX LLC	073H	MIDDLETOWN	MD
2017-07-27	240-908-0XXX	0000–0999	Assigned	TELNYX LLC	073H	WALKERSVL	MD
2017-07-27	240-913-0XXX	0000–0999	Assigned	TELNYX LLC	073H	DAMASCS240	MD
2017-07-27	240-915-0XXX	0000–0999	Assigned	TELNYX LLC	073H	NEW MARKET	MD
2017-07-27	240-971-0XXX	0000–0999	Assigned	TELNYX LLC	073H	FREDERICK	MD
2017-07-27	240-985-0XXX	0000–0999	Assigned	TELNYX LLC	073H	WILLIAMSPT	MD
2017-07-27	240-996-0XXX	0000–0999	Assigned	TELNYX LLC	073H	BRUNSWICK	MD
2017-07-27	240-998-0XXX	0000–0999	Assigned	TELNYX LLC	073H	HANCOCK	MD
2017-07-26	240-845-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	WSNG236Z13	MD
2017-07-24	240-390-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	ASHTON236	MD
2017-07-20	240-563-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN5	MD
2017-07-20	240-563-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN5	MD
2017-07-17	240-845-7XXX	7000–7999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	WSNG236Z13	MD
2017-07-12	240-563-1XXX	1000–1999	Assigned	COMCAST IP PHONE, LLC	318J	WSHNGTNZN5	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.