Recent thousands-block assignments

62 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 227

ONVOY, LLC - MD 25

NEW CINGULAR WIRELESS PCS, LLC - DC 17

BANDWIDTH.COM CLEC, LLC - MD 8

INTRADO COMMUNICATIONS, LLC 4

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 4

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
2023-12-18	227-222-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	WSNGTNZN16	MD
2023-12-18	227-999-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	WSNGTNZN10	MD
2023-12-18	227-999-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	WSNGTNZN10	MD
2023-12-15	227-203-5XXX	5000–5999	Assigned	TELNYX LLC	073H	FREDERICK	MD
2023-12-15	227-213-0XXX	0000–0999	Assigned	ONVOY SPECTRUM, LLC	624H	ASHTON236	MD
2023-12-15	227-219-0XXX	0000–0999	Assigned	ONVOY SPECTRUM, LLC	624H	ASHTON236	MD
2023-12-15	227-777-3XXX	3000–3999	Assigned	ONVOY SPECTRUM, LLC	624H	ASHTON238	MD
2023-12-15	227-777-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	ASHTON238	MD
2023-12-15	227-888-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	WSNG238Z15	MD
2023-12-15	227-888-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	WSNG238Z15	MD
2023-12-13	227-215-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	LAUREL236	MD
2023-12-07	227-220-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WALDORF	MD
2023-12-07	227-220-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WALDORF	MD
2023-12-07	227-220-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WALDORF	MD
2023-12-07	227-220-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	WALDORF	MD
2023-11-28	227-220-0XXX	0000–0999	Assigned	COMMIO, LLC	939H	WALDORF	MD
2023-11-28	227-220-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	WALDORF	MD
2023-11-28	227-220-2XXX	2000–2999	Assigned	COMMIO, LLC	939H	WALDORF	MD
2023-11-28	227-220-3XXX	3000–3999	Assigned	COMMIO, LLC	939H	WALDORF	MD
2023-11-24	227-206-0XXX	0000–0999	Assigned	COMMIO, LLC	939H	WSHNGTNZN5	MD
2023-11-24	227-206-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	WSHNGTNZN5	MD
2023-11-24	227-206-2XXX	2000–2999	Assigned	COMMIO, LLC	939H	WSHNGTNZN5	MD
2023-11-24	227-206-3XXX	3000–3999	Assigned	COMMIO, LLC	939H	WSHNGTNZN5	MD
2023-11-21	227-205-3XXX	3000–3999	Assigned	COMMIO, LLC	939H	WSHNGTNZN4	MD
2023-11-21	227-205-4XXX	4000–4999	Assigned	COMMIO, LLC	939H	WSHNGTNZN4	MD
2023-11-21	227-205-5XXX	5000–5999	Assigned	COMMIO, LLC	939H	WSHNGTNZN4	MD
2023-11-21	227-205-6XXX	6000–6999	Assigned	COMMIO, LLC	939H	WSHNGTNZN4	MD
2023-11-21	227-221-0XXX	0000–0999	Assigned	COMMIO, LLC	939H	SMITHSBURG	MD
2023-11-21	227-221-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	SMITHSBURG	MD
2023-11-21	227-221-2XXX	2000–2999	Assigned	COMMIO, LLC	939H	SMITHSBURG	MD
2023-11-21	227-221-3XXX	3000–3999	Assigned	COMMIO, LLC	939H	SMITHSBURG	MD
2023-11-21	227-221-4XXX	4000–4999	Assigned	COMMIO, LLC	939H	SMITHSBURG	MD
2023-11-21	227-223-0XXX	0000–0999	Assigned	COMMIO, LLC	939H	FREDERICK	MD
2023-11-21	227-223-1XXX	1000–1999	Assigned	COMMIO, LLC	939H	FREDERICK	MD
2023-11-21	227-223-2XXX	2000–2999	Assigned	COMMIO, LLC	939H	FREDERICK	MD
2023-11-09	227-200-0XXX	0000–0999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - DC	7529	WSHNGTNZN2	MD
2023-11-03	227-220-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WALDORF	MD
2023-10-25	227-219-1XXX	1000–1999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ASHTON236	MD
2023-10-25	227-219-2XXX	2000–2999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ASHTON236	MD
2023-10-25	227-219-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ASHTON236	MD
2023-10-25	227-219-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ASHTON236	MD
2023-10-24	227-215-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LAUREL236	MD
2023-10-24	227-215-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LAUREL236	MD
2023-10-19	227-215-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL236	MD
2023-10-19	227-215-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL236	MD
2023-10-19	227-218-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNG236Z14	MD
2023-10-19	227-218-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNG236Z14	MD
2023-10-19	227-218-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNG236Z14	MD
2023-10-17	227-222-2XXX	2000–2999	Assigned	WIDE VOICE, LLC - MD	530H	WSNGTNZN16	MD
2023-10-17	227-222-7XXX	7000–7999	Assigned	HD CARRIER LLC	321J	WSNGTNZN16	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.