NumberResearchThousands-blocks in 530-830
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 530-830 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
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-05-26 | 530-830-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN NORTH | CA |
| 2011-08-02 | 530-830-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN NORTH | CA |
| 2009-01-26 | 530-830-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN NORTH | CA |
| 2012-12-03 | 530-830-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | AUBN NORTH | CA |
| 2014-02-03 | 530-830-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | AUBN NORTH | CA |
| 2011-05-17 | 530-830-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | AUBN NORTH | CA |
| 2010-06-16 | 530-830-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | AUBN NORTH | CA |
| 2013-02-12 | 530-830-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | AUBN NORTH | CA |
| 2014-10-17 | 530-830-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AUBN NORTH | CA |
| 2010-02-01 | 530-830-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN NORTH | CA |
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.