NumberResearchThousands-blocks in 620-487
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 620-487 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
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-04-06 | 620-487-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | EMPORIA | KS |
| 2024-05-14 | 620-487-1XXX | 1000–1999 | Assigned | ONVOY, LLC - KS | 205F | EMPORIA | KS |
| 2012-07-27 | 620-487-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - KS | 986E | EMPORIA | KS |
| 2010-06-25 | 620-487-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | EMPORIA | KS |
| 2016-06-08 | 620-487-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EMPORIA | KS |
| 2014-07-02 | 620-487-5XXX | 5000–5999 | Assigned | NEX-TECH WIRELESS, LLC | 122D | EMPORIA | KS |
| 2014-02-10 | 620-487-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EMPORIA | KS |
| 2009-03-09 | 620-487-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - KS | 8995 | EMPORIA | KS |
| 2026-05-20 | 620-487-8XXX | 8000–8999 | Assigned | ONVOY, LLC - KS | 205F | EMPORIA | KS |
| — | 620-487-9XXX | 9000–9999 | Reserved | AT&T - LOCAL | 7421 | EMPORIA | 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.