AS400866
Harmony Networks, Inc.
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS400866 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 216.225.171.0/24 | 26,607 | 2026-07-23 20:29:59 |
| 216.225.167.0/24 | 26,588 | 2026-07-23 20:29:59 |
| 23.251.54.0/24 | 13,277 | 2026-07-23 20:24:13 |
| 23.251.53.0/24 | 12,051 | 2026-07-23 20:24:51 |
| 198.44.161.0/24 | 10,861 | 2026-07-23 20:24:02 |
| 216.225.165.0/24 | 10,657 | 2026-07-23 20:24:02 |
| 216.225.169.0/24 | 10,654 | 2026-07-23 20:24:02 |
| 198.44.162.0/24 | 10,573 | 2026-07-23 20:24:02 |
| 2.59.148.0/23 | 5,332 | 2026-07-23 20:04:58 |
| 216.225.161.0/24 | 5,021 | 2026-07-23 20:05:06 |
| 216.225.160.0/24 | 4,813 | 2026-07-23 20:04:53 |
| 216.225.164.0/24 | 4,572 | 2026-07-23 20:05:05 |
| 23.95.177.0/24 | 3,895 | 2026-07-23 20:04:58 |
| 216.225.168.0/24 | 3,864 | 2026-07-23 20:24:37 |
| 104.168.31.0/24 | 3,756 | 2026-07-23 20:04:58 |
| 82.153.200.0/24 | 3,745 | 2026-07-23 20:04:58 |
| 82.152.4.0/24 | 3,738 | 2026-07-23 20:04:58 |
| 216.225.163.0/24 | 3,714 | 2026-07-23 20:04:58 |
| 45.87.100.0/24 | 3,696 | 2026-07-23 20:04:58 |
| 82.153.156.0/24 | 3,692 | 2026-07-23 20:04:58 |
| 107.172.149.0/24 | 3,685 | 2026-07-23 20:04:58 |
| 147.79.23.0/24 | 3,680 | 2026-07-23 20:04:58 |
| 82.152.5.0/24 | 3,676 | 2026-07-23 20:04:58 |
| 213.210.63.0/24 | 3,648 | 2026-07-23 20:04:58 |
| 82.153.153.0/24 | 3,642 | 2026-07-23 20:04:58 |
| 141.11.29.0/24 | 3,635 | 2026-07-23 20:04:58 |
| 198.46.247.0/24 | 3,620 | 2026-07-23 20:04:58 |
| 213.218.211.0/24 | 3,610 | 2026-07-23 20:04:58 |
| 194.79.15.0/24 | 3,609 | 2026-07-23 20:04:58 |
| 213.218.233.0/24 | 1,757 | 2026-07-23 19:35:38 |
| 79.61.166.0/24 | 1,743 | 2026-07-23 19:59:01 |
| 185.148.69.0/24 | 761 | 2026-07-23 19:36:10 |
| 191.101.252.0/24 | 755 | 2026-07-23 19:36:10 |
| 181.215.112.0/24 | 754 | 2026-07-23 19:36:10 |
| 216.225.170.0/24 | 58 | 2026-05-21 02:30:31 |
| 81.31.235.0/24 | 6 | 2026-07-20 00:48:03 |
Frequently Asked Questions
What is AS400866?
AS400866 is an Autonomous System Number assigned to Harmony Networks, Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS400866 announce?
AS400866 announces 8.4K IPv4 addresses distributed across 28 routed CIDR prefixes. The network is registered in Japan.
Who operates AS400866?
AS400866 is operated by Harmony Networks, Inc.. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS400866 registered in?
AS400866 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
