NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 435-395

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 435-395 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 435 blocks

Most active assignees, all time — NPA 435
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 4
ONVOY, LLC - UT 3
NEW CINGULAR WIRELESS PCS, LLC 2
PEERLESS NETWORK OF UTAH, LLC - UT 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-03-06 435-395-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 HEBER CITY UT
2020-06-24 435-395-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 HEBER CITY UT
2022-11-14 435-395-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 HEBER CITY UT
2019-04-23 435-395-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E HEBER CITY UT
2019-04-23 435-395-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E HEBER CITY UT
2020-03-06 435-395-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 HEBER CITY UT
2021-06-30 435-395-6XXX 6000–6999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H HEBER CITY UT
2020-10-30 435-395-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E HEBER CITY UT
2018-12-18 435-395-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HEBER CITY UT
2018-12-18 435-395-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HEBER 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.