NumberResearchThousands-blocks in 620-733
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 620-733 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 620 blocks
Most active assignees, all time — NPA 620
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-04-08 | 620-733-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PROTECTION | KS |
| 2024-12-23 | 620-733-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PROTECTION | KS |
| 2022-02-25 | 620-733-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PROTECTION | KS |
| 2020-08-06 | 620-733-3XXX | 3000–3999 | Assigned | FRACTEL, LLC | 965H | PROTECTION | KS |
| 2020-09-17 | 620-733-4XXX | 4000–4999 | Assigned | ONVOY, LLC - KS | 205F | PROTECTION | KS |
| 2020-09-17 | 620-733-5XXX | 5000–5999 | Assigned | ONVOY, LLC - KS | 205F | PROTECTION | KS |
| — | 620-733-6XXX | 6000–6999 | Available | PROTECTION | KS | ||
| 2020-08-06 | 620-733-7XXX | 7000–7999 | Assigned | FRACTEL, LLC | 965H | PROTECTION | KS |
| 2024-08-02 | 620-733-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PROTECTION | KS |
| 2025-08-20 | 620-733-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF KANSAS, LLC - KS | 018H | PROTECTION | KS |
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.