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 585

EXIANT COMMUNICATIONS LLC 3

TC SYSTEMS, INC. - NY 1

NEW CINGULAR WIRELESS PCS, LLC - DC 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
2011-02-22	585-403-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	OLEAN	NY
2011-02-22	585-479-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	BATAVIA	NY
2011-02-17	585-228-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	WARSAW	NY
2011-02-17	585-457-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	JAVA	NY
2011-02-17	585-851-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	ROCHESTER	NY
2011-02-09	585-625-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-02-09	585-625-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-02-09	585-625-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-02-02	585-236-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	WEBSTER	NY
2011-02-02	585-500-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ROCHESTER	NY
2011-02-02	585-596-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	WELLSVILLE	NY
2011-02-02	585-991-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	GENESEO	NY
2011-01-24	585-500-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-01-24	585-500-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-01-18	585-617-8XXX	8000–8999	Assigned	LEVEL 3 TELECOM OF NEW YORK, LP - NY	8473	SPENCERPT	NY
2011-01-12	585-456-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-01-12	585-456-6XXX	6000–6999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-01-12	585-456-7XXX	7000–7999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-01-12	585-456-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-01-12	585-456-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ROCHESTER	NY
2011-01-11	585-310-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	EROCHESTER	NY
2011-01-11	585-957-7XXX	7000–7999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	ROCHESTER	NY
2011-01-04	585-500-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ROCHESTER	NY
2010-12-21	585-270-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	ROCHESTER	NY
2010-12-17	585-209-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	CUBA	NY
2010-12-17	585-496-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	CHAFFEE	NY
2010-12-17	585-653-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	ARCADE	NY
2010-12-17	585-735-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	MIDDLEPORT	NY
2010-12-17	585-969-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	PERRY	NY
2010-12-09	585-366-2XXX	2000–2999	Assigned	LEVEL 3 TELECOM OF NEW YORK, LP - NY	8473	HILTON	NY
2010-12-07	585-250-8XXX	8000–8999	Assigned	YMAX COMMUNICATIONS CORP. - NY	282E	BATAVIA	NY
2010-12-07	585-250-9XXX	9000–9999	Assigned	YMAX COMMUNICATIONS CORP. - NY	282E	BATAVIA	NY
2010-12-07	585-479-6XXX	6000–6999	Assigned	YMAX COMMUNICATIONS CORP. - NY	282E	BATAVIA	NY
2010-12-06	585-204-9XXX	9000–9999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	DANSVILLE	NY
2010-12-06	585-403-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	OLEAN	NY
2010-12-06	585-534-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	ATLANTA	NY
2010-12-03	585-209-8XXX	8000–8999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CUBA	NY
2010-12-03	585-296-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WELLSVILLE	NY
2010-11-23	585-270-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	ROCHESTER	NY
2010-11-23	585-270-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	ROCHESTER	NY
2010-11-04	585-500-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ROCHESTER	NY
2010-11-03	585-969-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PERRY	NY
2010-10-27	585-487-7XXX	7000–7999	Assigned	PAETEC ITEL, LLC	829J	HENRIETTA	NY
2010-10-18	585-308-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	LE ROY	NY
2010-10-13	585-204-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	DANSVILLE	NY
2010-10-13	585-708-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	ATTICA	NY
2010-10-05	585-270-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	ROCHESTER	NY
2010-10-05	585-851-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ROCHESTER	NY
2010-09-27	585-270-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	ROCHESTER	NY
2010-09-20	585-337-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - NY	997E	CANANDAGUA	NY

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.