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
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 89.239.24.0/21 | 2.0K |
0.0%
|
KnVnet services s.r.o. | CZ | Central Bohemia | Kralupy nad Vltavou |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS56821 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 |
|---|---|---|
| 89.239.24.0/21 | 3,646 | 2026-07-31 03:26:22 |
Frequently Asked Questions
What is AS56821?
AS56821 is an Autonomous System Number assigned to KnVnet services s.r.o.. 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 AS56821 announce?
AS56821 announces 2.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Czechia.
Who operates AS56821?
AS56821 is operated by KnVnet services s.r.o.. The organization is based in Czechia. You can view all IP ranges and related ASNs on the organization page.
What country is AS56821 registered in?
AS56821 is registered in Czechia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
