NumberResearchThousands-blocks in 530-452
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/21/2026
The ten 1,000-number thousand-blocks inside prefix 530-452 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 530 blocks
Most active assignees, all time — NPA 530
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 |
|---|---|---|---|---|---|---|---|
| — | 530-452-0XXX | 0000–0999 | Reserved | ONVOY, LLC - CA | 649C | NTAH THCY | CA |
| 2023-11-29 | 530-452-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NTAH THCY | CA |
| 2020-12-11 | 530-452-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NTAH THCY | CA |
| 2025-02-18 | 530-452-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NTAH THCY | CA |
| — | 530-452-4XXX | 4000–4999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | NTAH THCY | CA |
| 2005-10-07 | 530-452-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NTAH THCY | CA |
| — | 530-452-6XXX | 6000–6999 | Available | NTAH THCY | CA | ||
| — | 530-452-7XXX | 7000–7999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | NTAH THCY | CA |
| 2021-09-02 | 530-452-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | NTAH THCY | CA |
| 2024-06-25 | 530-452-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | NTAH THCY | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.