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
2005-03-11	435-695-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	BRIGHAM CY	UT
2005-03-02	435-749-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	CASTLEDALE	UT
2005-02-17	435-213-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	LOGAN	UT
2005-02-11	435-215-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	ST GEORGE	UT
2005-02-08	435-669-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	ST GEORGE	UT
2005-01-27	435-862-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	ST GEORGE	UT
2004-12-28	435-213-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	LOGAN	UT
2004-12-28	435-730-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	BRIGHAM CY	UT
2004-12-16	435-491-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	BICKNELL	UT
2004-12-13	435-214-0XXX	0000–0999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	PARK CITY	UT
2004-12-09	435-231-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ENTERPRISE	UT
2004-12-09	435-232-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	LOGAN	UT
2004-12-03	435-209-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	MILFORD	UT
2004-12-03	435-212-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	HILDALE	UT
2004-11-15	435-227-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	LOGAN	UT
2004-11-15	435-627-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	ST GEORGE	UT
2004-11-15	435-940-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	PARK CITY	UT
2004-11-05	435-669-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	ST GEORGE	UT
2004-10-20	435-881-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	LOGAN	UT
2004-10-19	435-258-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	LOGAN	UT
2004-10-19	435-772-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	ST GEORGE	UT
2004-10-13	435-849-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	TOOELE	UT
2004-10-07	435-915-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	LOGAN	UT
2004-10-05	435-216-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	ST GEORGE	UT
2004-09-28	435-730-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	BRIGHAM CY	UT
2004-09-27	435-245-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	LOGAN	UT
2004-09-27	435-671-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	HEBER CITY	UT
2004-09-17	435-862-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	ST GEORGE	UT
2004-08-16	435-621-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	VERNAL	UT
2004-08-16	435-621-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	VERNAL	UT
2004-07-19	435-228-2XXX	2000–2999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	TOOELE	UT
2004-07-19	435-228-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	TOOELE	UT
2004-07-07	435-850-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	TOOELE	UT
2004-06-11	435-862-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	ST GEORGE	UT
2004-05-04	435-228-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	TOOELE	UT
2004-05-04	435-261-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	BEAVER	UT
2004-05-04	435-580-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	NEPHI	UT
2004-04-13	435-630-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	PRICE	UT
2004-04-12	435-237-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	BRIGHAM CY	UT
2004-04-07	435-232-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	LOGAN	UT
2004-03-29	435-862-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	ST GEORGE	UT
2004-01-28	435-862-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	ST GEORGE	UT
2004-01-07	435-245-8XXX	8000–8999	Assigned	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	7176	LOGAN	UT
2004-01-07	435-850-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	TOOELE	UT
2003-12-22	435-226-2XXX	2000–2999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	BRIGHAM CY	UT
2003-11-19	435-627-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	ST GEORGE	UT
2003-11-19	435-868-4XXX	4000–4999	Assigned	PAETEC ITEL, LLC	829J	CEDAR CITY	UT
2003-10-17	435-862-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	ST GEORGE	UT
2003-10-14	435-633-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	RICHFIELD	UT
2003-09-26	435-214-5XXX	5000–5999	Assigned	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	7176	PARK 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.