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 →
Network profile
Source: PeeringDB →Present at 12 internet exchanges: LOCIX FRANKFURT: Peering LAN, BGP.Exchange - Frankfurt, Impart IX, STUIX, CXIX - Great Lakes, ZXIX Hangzhou, INTERIX, BGP.Exchange - Hong Kong, Protocol 7 IX - Tokyo, Protocol 7 IX - Hong Kong, …
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 142.249.114.0/23 | 512 |
2.9%
|
zhenyun sun | US | — | — |
| 142.249.114.0/24 | 256 |
0.8%
|
zhenyun sun | US | — | — |
| 142.249.115.128/25 | 128 |
0.0%
|
zhenyun sun | TW | — | — |
| 142.249.115.64/26 | 64 |
0.0%
|
zhenyun sun | TW | — | — |
| 142.249.115.0/27 | 32 |
0.0%
|
zhenyun sun | TW | — | — |
| 142.249.115.48/28 | 16 |
0.0%
|
zhenyun sun | TW | — | — |
| 142.249.115.32/30 | 4 |
0.0%
|
zhenyun sun | TW | — | — |
| 142.249.115.38/31 | 2 |
0.0%
|
zhenyun sun | TW | — | — |
| 142.249.115.46/31 | 2 |
0.0%
|
zhenyun sun | HK | — | — |
| 142.249.115.36 | 1 |
0.0%
|
zhenyun sun | JP | — | — |
| 142.249.115.37 | 1 |
0.0%
|
zhenyun sun | CN | — | — |
| 142.249.115.40 | 1 |
0.0%
|
zhenyun sun | JP | — | — |
| 142.249.115.41 | 1 |
0.0%
|
zhenyun sun | GB | — | — |
| 142.249.115.42 | 1 |
0.0%
|
zhenyun sun | MY | — | — |
| 142.249.115.43 | 1 |
0.0%
|
zhenyun sun | CN | — | — |
| 142.249.115.44 | 1 |
0.0%
|
zhenyun sun | CN | — | — |
| 142.249.115.45 | 1 |
0.0%
|
zhenyun sun | HK | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS204921 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 |
|---|---|---|
| 142.249.114.0/24 | 466,307 | 2026-08-02 02:28:53 |
| 142.249.115.0/24 | 227,935 | 2026-08-02 05:21:17 |
| 142.249.114.0/23 | 14,152 | 2026-06-24 17:22:23 |
Frequently Asked Questions
What is AS204921?
AS204921 is an Autonomous System Number assigned to zhenyun sun. 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 AS204921 announce?
AS204921 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Hong Kong.
Who operates AS204921?
AS204921 is operated by zhenyun sun. The organization is based in Hong Kong. You can view all IP ranges and related ASNs on the organization page.
What country is AS204921 registered in?
AS204921 is registered in Hong Kong. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
