NumberResearchThousands-blocks in 620-677
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 620-677 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
Jul 2026
Jun 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-12-03 | 620-677-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PLAINS | KS |
| 2021-10-13 | 620-677-1XXX | 1000–1999 | Assigned | IDEATEK TELCOM, LLC - KS | 014E | PLAINS | KS |
| 2024-08-02 | 620-677-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PLAINS | KS |
| 2024-12-23 | 620-677-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PLAINS | KS |
| 2025-05-12 | 620-677-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF KANSAS, LLC - KS | 018H | PLAINS | KS |
| 2020-09-21 | 620-677-5XXX | 5000–5999 | Assigned | ONVOY, LLC - KS | 205F | PLAINS | KS |
| 2020-09-21 | 620-677-6XXX | 6000–6999 | Assigned | ONVOY, LLC - KS | 205F | PLAINS | KS |
| 2020-07-01 | 620-677-7XXX | 7000–7999 | Assigned | FRACTEL, LLC | 965H | PLAINS | KS |
| 2022-04-08 | 620-677-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PLAINS | KS |
| — | 620-677-9XXX | 9000–9999 | Available | PLAINS | 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.