NumberResearchThousands-blocks in 530-657
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 530-657 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-04-14 | 530-657-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | WEED | CA |
| 2024-09-16 | 530-657-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WEED | CA |
| — | 530-657-2XXX | 2000–2999 | Available | WEED | CA | ||
| 2013-12-06 | 530-657-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | WEED | CA |
| — | 530-657-4XXX | 4000–4999 | Available | WEED | CA | ||
| 2019-07-10 | 530-657-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | WEED | CA |
| — | 530-657-6XXX | 6000–6999 | Available | WEED | CA | ||
| — | 530-657-7XXX | 7000–7999 | Available | WEED | CA | ||
| 2009-05-07 | 530-657-8XXX | 8000–8999 | Assigned | CAL-ORE COMMUNICATIONS, INC. - CA | 734E | WEED | CA |
| 2018-06-15 | 530-657-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | WEED | 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.