NumberResearchThousands-blocks in 530-937
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 530-937 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 530-937-0XXX | 0000–0999 | Reserved | ONVOY, LLC - CA | 649C | YREKA | CA |
| 2023-07-20 | 530-937-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | YREKA | CA |
| — | 530-937-2XXX | 2000–2999 | Reserved | ONVOY, LLC - CA | 649C | YREKA | CA |
| — | 530-937-3XXX | 3000–3999 | Reserved | ONVOY, LLC - CA | 649C | YREKA | CA |
| 2025-03-21 | 530-937-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | YREKA | CA |
| 2011-10-04 | 530-937-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | YREKA | CA |
| 2025-03-21 | 530-937-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | YREKA | CA |
| 2024-09-06 | 530-937-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YREKA | CA |
| 2023-07-20 | 530-937-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | YREKA | CA |
| 2023-07-20 | 530-937-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | YREKA | 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.