NumberResearchThousands-blocks in 507-853
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 507-853 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 507 blocks
Most active assignees, all time — NPA 507
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 507-853-0XXX | 0000–0999 | Reserved | FRONTIER COMMUNICATIONS OF MINNESOTA, INC. | 1367 | OKABENA | MN |
| 2017-05-01 | 507-853-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MN | 184D | OKABENA | MN |
| 2020-06-26 | 507-853-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | OKABENA | MN |
| 2014-12-19 | 507-853-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MN | 184D | OKABENA | MN |
| — | 507-853-4XXX | 4000–4999 | Reserved | FRONTIER COMMUNICATIONS OF MINNESOTA, INC. | 1367 | OKABENA | MN |
| 2019-08-14 | 507-853-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MN | 184D | OKABENA | MN |
| 2017-03-29 | 507-853-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OKABENA | MN |
| 2011-10-21 | 507-853-7XXX | 7000–7999 | Assigned | SOUTHWEST MINNESOTA BROADBAND SERVICES - MN | 569G | OKABENA | MN |
| — | 507-853-8XXX | 8000–8999 | Reserved | FRONTIER COMMUNICATIONS OF MINNESOTA, INC. | 1367 | OKABENA | MN |
| — | 507-853-9XXX | 9000–9999 | Reserved | FRONTIER COMMUNICATIONS OF MINNESOTA, INC. | 1367 | OKABENA | MN |
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.