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
2012-09-24	240-541-8XXX	8000–8999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - DC	7529	WSHNGTNZN2	MD
2012-09-24	240-541-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - DC	7529	WSHNGTNZN2	MD
2012-09-21	240-428-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN10	MD
2012-09-20	240-229-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WALDORF	MD
2012-09-20	240-772-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	FREDERICK	MD
2012-09-20	240-780-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	GAITHERSBG	MD
2012-09-20	240-803-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	CUMBERLAND	MD
2012-09-20	240-803-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	CUMBERLAND	MD
2012-09-13	240-428-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN10	MD
2012-09-13	240-428-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN10	MD
2012-09-13	240-772-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	FREDERICK	MD
2012-09-13	240-772-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	FREDERICK	MD
2012-09-13	240-846-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSNGTNZN16	MD
2012-09-12	240-245-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	WSNG236Z14	MD
2012-09-12	240-303-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN16	MD
2012-09-12	240-339-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	WSNG236Z15	MD
2012-09-12	240-392-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN5	MD
2012-09-12	240-541-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN2	MD
2012-09-12	240-558-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WSNGTNZN11	MD
2012-09-12	240-582-5XXX	5000–5999	Assigned	COMCAST IP PHONE, LLC	318J	WSHNGTNZN4	MD
2012-09-12	240-616-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	WSNG236Z13	MD
2012-09-12	240-724-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN6	MD
2012-09-12	240-780-7XXX	7000–7999	Assigned	COMCAST IP PHONE, LLC	318J	GAITHERSBG	MD
2012-09-12	240-898-4XXX	4000–4999	Assigned	ONVOY, LLC - MD	876D	WSHNGTNZN4	MD
2012-09-11	240-233-7XXX	7000–7999	Assigned	PAETEC ITEL, LLC	829J	TOMPKINSVL	MD
2012-09-11	240-270-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	WALDORF	MD
2012-09-11	240-349-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	LA PLATA	MD
2012-09-11	240-434-0XXX	0000–0999	Assigned	ONVOY, LLC - MD	876D	LEONARDTN	MD
2012-09-11	240-685-9XXX	9000–9999	Assigned	ONVOY, LLC - MD	876D	BRANDYWINE	MD
2012-09-11	240-712-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	LAUREL238	MD
2012-09-11	240-786-1XXX	1000–1999	Assigned	ONVOY, LLC - MD	876D	LAUREL236	MD
2012-09-11	240-837-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	HUGHESVL	MD
2012-09-11	240-844-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	RIDGE	MD
2012-09-11	240-883-5XXX	5000–5999	Assigned	ONVOY, LLC - MD	876D	ASHTON236	MD
2012-09-11	240-895-9XXX	9000–9999	Assigned	ONVOY, LLC - MD	876D	LXTNPKGRML	MD
2012-09-11	240-986-3XXX	3000–3999	Assigned	ONVOY, LLC - MD	876D	NANJEMOY	MD
2012-08-30	240-541-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSHNGTNZN2	MD
2012-08-28	240-258-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	RIDGE	MD
2012-08-23	240-444-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL236	MD
2012-08-23	240-800-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	WSHNGTNZN2	MD
2012-08-22	240-304-3XXX	3000–3999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	WSHNGTNZN5	MD
2012-08-22	240-650-1XXX	1000–1999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	WSHNGTNZN3	MD
2012-08-22	240-762-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN2	MD
2012-08-22	240-762-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WSHNGTNZN2	MD
2012-08-15	240-652-2XXX	2000–2999	Assigned	ONVOY, LLC - MD	876D	MECHANCSVL	MD
2012-08-14	240-203-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	HAGERSTOWN	MD
2012-08-14	240-203-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	HAGERSTOWN	MD
2012-08-14	240-712-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	LAUREL238	MD
2012-08-09	240-630-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN2	MD
2012-08-09	240-630-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	WSHNGTNZN2	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.