Recent thousands-block assignments

5 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 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
2011-02-15	240-436-4XXX	4000–4999	Assigned	PAETEC ITEL, LLC	829J	BUCKEYSTN	MD
2011-02-10	240-233-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	TOMPKINSVL	MD
2011-02-10	240-528-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	HUGHESVL	MD
2011-02-03	240-696-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	WSHNGTNZN4	MD
2011-02-02	240-385-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	MYERSVILLE	MD
2011-01-31	240-324-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	ASHTON238	MD
2011-01-31	240-459-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	LAUREL236	MD
2011-01-31	240-489-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	POOLESVL	MD
2011-01-31	240-587-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	LEONARDTN	MD
2011-01-31	240-848-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	GAITHERSBG	MD
2011-01-31	240-848-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	GAITHERSBG	MD
2011-01-28	240-232-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNG236Z14	MD
2011-01-28	240-303-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN16	MD
2011-01-28	240-390-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	ASHTON236	MD
2011-01-28	240-718-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	LXTNPKGRML	MD
2011-01-28	240-839-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN3	MD
2011-01-14	240-428-1XXX	1000–1999	Assigned	COMCAST IP PHONE, LLC	318J	WSNGTNZN10	MD
2011-01-10	240-252-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	GAITHERSBG	MD
2011-01-04	240-385-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	MYERSVILLE	MD
2011-01-04	240-454-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	GAITHERSBG	MD
2011-01-04	240-457-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2011-01-04	240-507-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN2	MD
2011-01-04	240-507-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN2	MD
2011-01-04	240-587-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LEONARDTN	MD
2011-01-04	240-695-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN5	MD
2010-12-29	240-406-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN10	MD
2010-12-29	240-406-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN10	MD
2010-12-29	240-542-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNG236Z13	MD
2010-12-29	240-621-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN11	MD
2010-12-29	240-863-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN3	MD
2010-12-22	240-706-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN3	MD
2010-12-22	240-813-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	GAITHERSBG	MD
2010-12-14	240-452-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	HAGERSTOWN	MD
2010-12-13	240-440-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2010-12-13	240-587-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LEONARDTN	MD
2010-12-08	240-415-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	FREDERICK	MD
2010-12-07	240-300-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WALDORF	MD
2010-12-02	240-216-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WALDORF	MD
2010-11-17	240-706-8XXX	8000–8999	Assigned	YMAX COMMUNICATIONS CORP. - MD	281E	WSHNGTNZN3	MD
2010-11-17	240-706-9XXX	9000–9999	Assigned	YMAX COMMUNICATIONS CORP. - MD	281E	WSHNGTNZN3	MD
2010-11-16	240-528-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	HUGHESVL	MD
2010-11-09	240-200-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	WSHNGTNZN2	MD
2010-11-09	240-257-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	NANJEMOY	MD
2010-11-05	240-408-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2010-11-05	240-408-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2010-11-05	240-408-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2010-11-04	240-437-2XXX	2000–2999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	ASHTON236	MD
2010-11-03	240-382-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	HAGERSTOWN	MD
2010-11-03	240-397-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	FREDERICK	MD
2010-11-03	240-770-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN4	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.