NumberResearchThousands-blocks in 205-858
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 205-858 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 205 blocks
Most active assignees, all time — NPA 205
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-06-21 | 205-858-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - AL | 072F | COLUMBIANA | AL |
| 2018-11-28 | 205-858-1XXX | 1000–1999 | Assigned | AIRUS, INC. - AL | 476H | COLUMBIANA | AL |
| 2019-02-11 | 205-858-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AL | 604E | COLUMBIANA | AL |
| 2019-02-11 | 205-858-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AL | 604E | COLUMBIANA | AL |
| 2019-04-01 | 205-858-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AL | 604E | COLUMBIANA | AL |
| 2019-04-01 | 205-858-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AL | 604E | COLUMBIANA | AL |
| 2019-04-04 | 205-858-6XXX | 6000–6999 | Assigned | CORETEL ALABAMA, INC. - AL | 476F | COLUMBIANA | AL |
| 2022-05-31 | 205-858-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLUMBIANA | AL |
| 2017-08-23 | 205-858-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | COLUMBIANA | AL |
| 2018-02-06 | 205-858-9XXX | 9000–9999 | Assigned | AIRUS, INC. - AL | 476H | COLUMBIANA | AL |
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.