Recent thousands-block assignments

22 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 475

ONVOY, LLC - CT 14

BANDWIDTH.COM CLEC, LLC - CT 4

CSC WIRELESS, LLC 3

OMNIPOINT COMMUNICATIONS, INC. - CT 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
2017-03-27	475-225-2XXX	2000–2999	Assigned	TELNYX LLC	073H	BRIDGEPORT	CT
2017-03-27	475-233-0XXX	0000–0999	Assigned	TELNYX LLC	073H	WATERBURY	CT
2017-03-27	475-245-0XXX	0000–0999	Assigned	TELNYX LLC	073H	NORWALK	CT
2017-03-27	475-328-8XXX	8000–8999	Assigned	TELNYX LLC	073H	DARIEN	CT
2017-03-27	475-330-9XXX	9000–9999	Assigned	TELNYX LLC	073H	FAIRFIELD	CT
2017-03-27	475-465-8XXX	8000–8999	Assigned	TELNYX LLC	073H	OLDGRNWICH	CT
2017-03-27	475-731-6XXX	6000–6999	Assigned	TELNYX LLC	073H	ANSONIDRBY	CT
2017-03-27	475-775-2XXX	2000–2999	Assigned	TELNYX LLC	073H	MERIDEN	CT
2017-03-15	475-465-1XXX	1000–1999	Assigned	ONVOY, LLC - CT	639C	OLDGRNWICH	CT
2017-03-08	475-214-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-214-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-214-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-214-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-217-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	STAMFORD	CT
2017-03-08	475-331-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	NEW HAVEN	CT
2017-03-08	475-331-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	NEW HAVEN	CT
2017-03-08	475-731-5XXX	5000–5999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	ANSONIDRBY	CT
2017-03-06	475-434-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	NEW HAVEN	CT
2017-02-28	475-333-3XXX	3000–3999	Assigned	TELNYX LLC	073H	STAMFORD	CT
2017-02-24	475-218-4XXX	4000–4999	Assigned	TELNYX LLC	073H	DANBURY	CT
2017-02-02	475-325-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	GEORGETOWN	CT
2017-02-02	475-330-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	FAIRFIELD	CT
2017-02-01	475-232-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	STAMFORD	CT
2017-01-06	475-231-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	TRUMBULL	CT
2017-01-04	475-279-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	DANBURY	CT
2016-12-30	475-269-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	HUNTINGTON	CT
2016-12-27	475-319-3XXX	3000–3999	Assigned	METROPCS, INC.	5562	BRIDGEPORT	CT
2016-12-22	475-279-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	DANBURY	CT
2016-12-06	475-234-1XXX	1000–1999	Assigned	TELNYX LLC	073H	NEW HAVEN	CT
2016-11-18	475-323-0XXX	0000–0999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	NEWTOWN	CT
2016-11-10	475-206-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	DANBURY	CT
2016-11-10	475-300-8XXX	8000–8999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	NEW HAVEN	CT
2016-11-10	475-559-9XXX	9000–9999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	WATERBURY	CT
2016-11-09	475-233-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WATERBURY	CT
2016-11-08	475-329-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	DANBURY	CT
2016-11-04	475-232-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	STAMFORD	CT
2016-10-28	475-228-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	ANSONIDRBY	CT
2016-10-14	475-731-3XXX	3000–3999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	ANSONIDRBY	CT
2016-10-14	475-731-4XXX	4000–4999	Assigned	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	ANSONIDRBY	CT
2016-10-05	475-331-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	NEW HAVEN	CT
2016-09-30	475-319-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	BRIDGEPORT	CT
2016-09-30	475-319-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	BRIDGEPORT	CT

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.