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
2004-10-13	240-388-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	GAITHERSBG	MD
2004-10-13	240-533-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN3	MD
2004-10-08	240-285-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2004-10-08	240-434-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LEONARDTN	MD
2004-10-08	240-678-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-10-05	240-455-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	WSHNGTNZN5	MD
2004-10-01	240-344-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FREDERICK	MD
2004-10-01	240-344-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FREDERICK	MD
2004-09-10	240-291-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HAGERSTOWN	MD
2004-09-08	240-285-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2004-09-08	240-315-1XXX	1000–1999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2004-09-08	240-533-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN3	MD
2004-09-08	240-682-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WALDORF	MD
2004-09-07	240-997-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-09-07	240-997-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-09-07	240-997-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-09-07	240-997-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-08-30	240-280-0XXX	0000–0999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	LAUREL236	MD
2004-08-25	240-478-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2004-08-25	240-478-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2004-08-25	240-478-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2004-08-18	240-694-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-08-18	240-694-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-08-18	240-765-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	WSHNGTNZN5	MD
2004-08-05	240-538-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LEONARDTN	MD
2004-08-05	240-672-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSNGTNZN10	MD
2004-07-30	240-344-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FREDERICK	MD
2004-07-27	240-405-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	FREDERICK	MD
2004-07-21	240-328-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSNGTNZN10	MD
2004-07-12	240-694-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-07-12	240-694-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-07-08	240-645-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2004-07-08	240-645-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2004-07-08	240-645-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN3	MD
2004-07-08	240-682-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WALDORF	MD
2004-07-02	240-412-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	WALDORF	MD
2004-06-30	240-644-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-06-30	240-644-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-06-30	240-644-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-06-30	240-671-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-06-23	240-527-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	HAGERSTOWN	MD
2004-06-17	240-644-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN2	MD
2004-06-16	240-533-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN3	MD
2004-06-16	240-848-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	GAITHERSBG	MD
2004-06-08	240-344-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FREDERICK	MD
2004-06-04	240-538-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LEONARDTN	MD
2004-06-04	240-678-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-06-04	240-678-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-06-04	240-678-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	MD
2004-06-04	240-997-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN3	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.