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
2016-05-03	240-810-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	WSNGTNZN10	MD
2016-05-03	240-810-1XXX	1000–1999	Assigned	IP HORIZON LLC	515J	WSNGTNZN10	MD
2016-05-03	240-830-6XXX	6000–6999	Assigned	IP HORIZON LLC	515J	WSHNGTNZN5	MD
2016-05-03	240-830-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	WSHNGTNZN5	MD
2016-05-03	240-847-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	WSHNGTNZN3	MD
2016-05-02	240-261-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	GAITHERSBG	MD
2016-05-02	240-444-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	LAUREL236	MD
2016-05-02	240-448-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	WALDORF	MD
2016-05-02	240-534-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	WSHNGTNZN2	MD
2016-05-02	240-546-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	WSNGTNZN16	MD
2016-05-02	240-573-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	WSNG236Z15	MD
2016-05-02	240-623-3XXX	3000–3999	Assigned	IP HORIZON LLC	515J	WSHNGTNZN4	MD
2016-05-02	240-633-1XXX	1000–1999	Assigned	IP HORIZON LLC	515J	HUGHESVL	MD
2016-05-02	240-817-5XXX	5000–5999	Assigned	IP HORIZON LLC	515J	ASHTON236	MD
2016-05-02	240-846-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	WSNGTNZN16	MD
2016-05-02	240-970-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	WSNGTNZN12	MD
2016-04-27	240-831-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	FREDERICK	MD
2016-04-27	240-831-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	FREDERICK	MD
2016-04-27	240-831-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	FREDERICK	MD
2016-04-27	240-831-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	FREDERICK	MD
2016-04-20	240-570-0XXX	0000–0999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-570-1XXX	1000–1999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-570-2XXX	2000–2999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-570-3XXX	3000–3999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-570-4XXX	4000–4999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-570-5XXX	5000–5999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-570-6XXX	6000–6999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-570-9XXX	9000–9999	Assigned	HD CARRIER LLC	321J	ASHTON238	MD
2016-04-20	240-815-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	FREDERICK	MD
2016-04-11	240-534-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN2	MD
2016-04-11	240-618-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSNGTNZN10	MD
2016-04-11	240-719-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN5	MD
2016-04-11	240-856-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LAUREL238	MD
2016-04-11	240-856-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LAUREL238	MD
2016-04-06	240-496-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LEONARDTN	MD
2016-04-06	240-810-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2016-04-06	240-810-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2016-04-04	240-261-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	GAITHERSBG	MD
2016-04-01	240-548-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNG236Z14	MD
2016-04-01	240-825-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2016-04-01	240-825-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2016-04-01	240-825-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN4	MD
2016-03-29	240-348-9XXX	9000–9999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN16	MD
2016-03-29	240-407-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN16	MD
2016-03-29	240-551-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN10	MD
2016-03-29	240-552-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN10	MD
2016-03-29	240-621-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2016-03-29	240-621-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2016-03-29	240-624-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	WSNG236Z13	MD
2016-03-29	240-624-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	WSNG236Z13	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.