Recent thousands-block assignments

43 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-04-19	435-297-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-04-19	435-297-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-04-19	435-297-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-04-19	435-297-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-04-19	435-297-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-04-19	435-297-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-04-19	435-297-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-04-13	435-254-3XXX	3000–3999	Assigned	ONVOY, LLC - UT	871E	PORTAGE	UT
2021-04-13	435-547-7XXX	7000–7999	Assigned	TON80 COMMUNICATIONS, LLC	516J	BRIAN HEAD	UT
2021-03-23	435-302-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-03-23	435-302-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-03-23	435-302-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-03-23	435-302-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-03-15	435-523-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ST GEORGE	UT
2021-03-11	435-289-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	RICHFIELD	UT
2021-03-08	435-352-2XXX	2000–2999	Assigned	ONVOY, LLC - UT	871E	HEBER CITY	UT
2021-03-08	435-352-3XXX	3000–3999	Assigned	ONVOY, LLC - UT	871E	HEBER CITY	UT
2021-03-08	435-406-2XXX	2000–2999	Assigned	ONVOY, LLC - UT	871E	DELTA	UT
2021-02-22	435-281-0XXX	0000–0999	Assigned	TELNYX LLC	073H	WASATCH	UT
2021-02-22	435-523-0XXX	0000–0999	Assigned	TELNYX LLC	073H	ST GEORGE	UT
2021-02-22	435-625-8XXX	8000–8999	Assigned	TELNYX LLC	073H	BEAVER	UT
2021-02-09	435-274-0XXX	0000–0999	Assigned	TELNYX LLC	073H	TOOELE	UT
2021-02-09	435-289-1XXX	1000–1999	Assigned	TELNYX LLC	073H	RICHFIELD	UT
2021-02-09	435-592-8XXX	8000–8999	Assigned	TELNYX LLC	073H	CEDAR CITY	UT
2021-02-02	435-210-7XXX	7000–7999	Assigned	ONVOY, LLC - UT	871E	MOAB	UT
2021-02-02	435-220-7XXX	7000–7999	Assigned	ONVOY, LLC - UT	871E	MOAB	UT
2021-02-02	435-260-3XXX	3000–3999	Assigned	ONVOY, LLC - UT	871E	MOAB	UT
2021-02-02	435-271-6XXX	6000–6999	Assigned	ONVOY, LLC - UT	871E	SALINA	UT
2021-02-02	435-271-7XXX	7000–7999	Assigned	ONVOY, LLC - UT	871E	SALINA	UT
2021-02-02	435-281-2XXX	2000–2999	Assigned	ONVOY, LLC - UT	871E	WASATCH	UT
2021-02-02	435-281-3XXX	3000–3999	Assigned	ONVOY, LLC - UT	871E	WASATCH	UT
2021-02-02	435-296-4XXX	4000–4999	Assigned	ONVOY, LLC - UT	871E	GLNCNYONCY	UT
2021-02-02	435-296-5XXX	5000–5999	Assigned	ONVOY, LLC - UT	871E	GLNCNYONCY	UT
2021-02-02	435-303-3XXX	3000–3999	Assigned	ONVOY, LLC - UT	871E	BEARRIV CY	UT
2021-02-02	435-303-4XXX	4000–4999	Assigned	ONVOY, LLC - UT	871E	BEARRIV CY	UT
2021-02-02	435-352-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	HEBER CITY	UT
2021-02-02	435-352-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	HEBER CITY	UT
2021-02-02	435-513-3XXX	3000–3999	Assigned	ONVOY, LLC - UT	871E	PARK CITY	UT
2021-02-02	435-513-7XXX	7000–7999	Assigned	ONVOY, LLC - UT	871E	PARK CITY	UT
2021-02-02	435-513-8XXX	8000–8999	Assigned	ONVOY, LLC - UT	871E	PARK CITY	UT
2021-02-02	435-666-8XXX	8000–8999	Assigned	ONVOY, LLC - UT	871E	PARK CITY	UT
2021-01-29	435-299-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	PRICE	UT
2021-01-29	435-302-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-01-29	435-302-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-01-29	435-302-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-01-29	435-302-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-01-29	435-302-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-01-29	435-302-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	KAMAS	UT
2021-01-26	435-281-1XXX	1000–1999	Assigned	NUSO, LLC	478J	WASATCH	UT
2021-01-26	435-303-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT	6571	BEARRIV CY	UT

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.