NumberResearchThousands-blocks in 435-592
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
The ten 1,000-number thousand-blocks inside prefix 435-592 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, last 30 days — NPA 435
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 435-592-0XXX | 0000–0999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | CEDAR CITY | UT |
| 2008-09-04 | 435-592-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | CEDAR CITY | UT |
| — | 435-592-2XXX | 2000–2999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | CEDAR CITY | UT |
| 2006-02-16 | 435-592-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | CEDAR CITY | UT |
| 2009-09-10 | 435-592-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | CEDAR CITY | UT |
| 2006-08-10 | 435-592-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | CEDAR CITY | UT |
| 2012-08-08 | 435-592-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | CEDAR CITY | UT |
| 2026-09-14 | 435-592-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF UTAH, LLC - UT | 526H | CEDAR CITY | UT |
| 2021-02-09 | 435-592-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | CEDAR CITY | UT |
| 2010-06-15 | 435-592-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | 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.