NumberResearchThousands-blocks in 620-559
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 620-559 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
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-01-13 | 620-559-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - KS | 986E | EUREKA | KS |
| 2022-04-06 | 620-559-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | EUREKA | KS |
| 2021-11-04 | 620-559-2XXX | 2000–2999 | Assigned | ONVOY, LLC - KS | 205F | EUREKA | KS |
| — | 620-559-3XXX | 3000–3999 | Available | EUREKA | KS | ||
| 2024-03-06 | 620-559-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EUREKA | KS |
| 2025-03-21 | 620-559-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | EUREKA | KS |
| 2025-02-10 | 620-559-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | 6532 | EUREKA | KS |
| — | 620-559-7XXX | 7000–7999 | Available | EUREKA | KS | ||
| 2022-11-16 | 620-559-8XXX | 8000–8999 | Assigned | ONVOY, LLC - KS | 205F | EUREKA | KS |
| 2024-01-11 | 620-559-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EUREKA | 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.