NumberResearchThousands-blocks in 620-288
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 620-288 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 620-288-0XXX | 0000–0999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | 6532 | FREDONIA | KS |
| 2014-02-25 | 620-288-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - KS | 986E | FREDONIA | KS |
| 2015-08-17 | 620-288-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - KS | 986E | FREDONIA | KS |
| 2017-04-20 | 620-288-3XXX | 3000–3999 | Assigned | ONVOY, LLC - KS | 205F | FREDONIA | KS |
| 2012-11-16 | 620-288-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | 6532 | FREDONIA | KS |
| — | 620-288-5XXX | 5000–5999 | Available | FREDONIA | KS | ||
| 2008-10-27 | 620-288-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - KS | 986E | FREDONIA | KS |
| 2014-02-05 | 620-288-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FREDONIA | KS |
| 2021-06-30 | 620-288-8XXX | 8000–8999 | Assigned | FRACTEL, LLC | 965H | FREDONIA | KS |
| — | 620-288-9XXX | 9000–9999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | 6532 | FREDONIA | 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.