Recent thousands-block assignments

43 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 435

UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 40

TDS BROADBAND SERVICE LLC 1

PEERLESS NETWORK OF UTAH, LLC - UT 1

AHOI LLC 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
2012-08-29	435-250-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	NEPHI	UT
2012-08-29	435-994-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	LOGAN	UT
2012-08-24	435-319-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	ST GEORGE	UT
2012-08-17	435-339-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	BRIGHAM CY	UT
2012-08-14	435-319-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	ST GEORGE	UT
2012-08-10	435-225-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	BRIGHAM CY	UT
2012-08-08	435-241-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	TOOELE	UT
2012-08-08	435-262-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	FAIRVIEW	UT
2012-08-08	435-406-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	DELTA	UT
2012-08-08	435-414-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	ST GEORGE	UT
2012-08-08	435-421-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	BEAVER	UT
2012-08-08	435-558-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	RICHFIELD	UT
2012-08-08	435-592-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	CEDAR CITY	UT
2012-08-08	435-612-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	MONROE	UT
2012-08-08	435-851-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	MANTI	UT
2012-08-08	435-994-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	LOGAN	UT
2012-07-24	435-319-6XXX	6000–6999	Assigned	ONVOY, LLC - UT	871E	ST GEORGE	UT
2012-07-17	435-319-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	ST GEORGE	UT
2012-07-12	435-503-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	HEBER CITY	UT
2012-07-12	435-749-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	CASTLEDALE	UT
2012-07-10	435-899-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KANAB	UT
2012-07-02	435-919-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	BRIGHAM CY	UT
2012-06-11	435-299-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PRICE	UT
2012-06-11	435-393-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PAROWAN	UT
2012-06-11	435-414-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	ST GEORGE	UT
2012-06-11	435-565-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	PARK CITY	UT
2012-06-11	435-610-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	NEPHI	UT
2012-06-11	435-813-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	MANTI	UT
2012-06-11	435-994-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	LOGAN	UT
2012-06-05	435-200-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	PARK CITY	UT
2012-06-05	435-258-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	LOGAN	UT
2012-04-30	435-919-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	BRIGHAM CY	UT
2012-04-12	435-531-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	CEDAR CITY	UT
2012-04-10	435-414-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	ST GEORGE	UT
2012-04-10	435-421-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	BEAVER	UT
2012-04-04	435-233-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	CEDAR CITY	UT
2012-04-04	435-233-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	CEDAR CITY	UT
2012-04-04	435-233-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	CEDAR CITY	UT
2012-04-04	435-731-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	PARK CITY	UT
2012-04-04	435-731-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	PARK CITY	UT
2012-04-04	435-731-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	PARK CITY	UT
2012-03-23	435-938-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	LOGAN	UT
2012-03-19	435-714-6XXX	6000–6999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	PARK CITY	UT
2012-03-09	435-531-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	CEDAR CITY	UT
2012-03-07	435-414-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	ST GEORGE	UT
2012-03-07	435-527-6XXX	6000–6999	Assigned	ONVOY, LLC - UT	871E	MONROE	UT
2012-03-07	435-709-4XXX	4000–4999	Assigned	ONVOY, LLC - UT	871E	HEBER CITY	UT
2012-03-06	435-355-0XXX	0000–0999	Assigned	E. FIBER MOAB, LLC	831J	MOAB	UT
2012-03-06	435-414-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - UT	117F	ST GEORGE	UT
2012-03-06	435-572-7XXX	7000–7999	Assigned	ONVOY, LLC - UT	871E	CEDAR CITY	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.