Recent thousands-block assignments

16 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 385

LEVEL 3 COMMUNICATIONS, LLC - UT 5

BANDWIDTH.COM CLEC, LLC - UT 5

NEW CINGULAR WIRELESS PCS, LLC 4

ONVOY, LLC - UT 2

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
2017-03-09	385-499-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	SALT LAKE	UT
2017-03-07	385-485-1XXX	1000–1999	Assigned	WIDE VOICE, LLC - UT	659H	MURRAY	UT
2017-03-02	385-448-8XXX	8000–8999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	SPANIHFORK	UT
2017-03-01	385-331-5XXX	5000–5999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	AMERCNFORK	UT
2017-03-01	385-350-9XXX	9000–9999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	MORGAN	UT
2017-03-01	385-388-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	MURRAY	UT
2017-03-01	385-389-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	OGDEN	UT
2017-03-01	385-423-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	CLEARFIELD	UT
2017-03-01	385-425-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	MURRAY	UT
2017-03-01	385-425-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	MURRAY	UT
2017-03-01	385-434-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	MIDVALE	UT
2017-03-01	385-440-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	PLEASATGRV	UT
2017-03-01	385-449-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	ALTA	UT
2017-03-01	385-489-6XXX	6000–6999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BOUNTIFUL	UT
2017-03-01	385-626-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	OGDEN	UT
2017-03-01	385-895-3XXX	3000–3999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	PAYSON	UT
2017-03-01	385-988-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	FARMINGTON	UT
2017-02-28	385-515-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	KAYSVILLE	UT
2017-02-24	385-261-5XXX	5000–5999	Assigned	ONVOY, LLC - UT	871E	SALT LAKE	UT
2017-02-09	385-515-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAYSVILLE	UT
2017-02-09	385-515-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAYSVILLE	UT
2017-02-09	385-515-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAYSVILLE	UT
2017-02-09	385-515-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAYSVILLE	UT
2017-02-09	385-515-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAYSVILLE	UT
2017-01-27	385-434-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	MIDVALE	UT
2017-01-27	385-434-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	MIDVALE	UT
2017-01-27	385-434-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	MIDVALE	UT
2017-01-27	385-434-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	MIDVALE	UT
2017-01-24	385-258-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-24	385-429-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	SALT LAKE	UT
2017-01-18	385-285-1XXX	1000–1999	Assigned	WIDE VOICE, LLC - UT	659H	SALT LAKE	UT
2017-01-09	385-423-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	CLEARFIELD	UT
2017-01-09	385-455-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	LEHI	UT
2017-01-06	385-289-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	OGDEN	UT
2017-01-03	385-423-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	CLEARFIELD	UT
2016-12-30	385-277-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT
2016-12-30	385-277-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT
2016-12-30	385-277-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT
2016-12-30	385-277-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT
2016-12-30	385-277-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT
2016-12-30	385-277-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT
2016-12-30	385-277-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PROVO	UT

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.