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 2 internet exchanges: SIX.SK, Peering.cz
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 147.78.168.0/22 | 1.0K |
15.3%
|
OSTV s.r.o. | SK | Nitra Region | Nitra |
| 194.110.119.0/24 | 256 |
0.8%
|
OSTV s.r.o. | SK | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS209531 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 |
|---|---|---|
| 194.110.119.0/24 | 310,224 | 2026-07-30 05:54:48 |
| 147.78.168.0/22 | 6,989 | 2026-07-30 05:43:10 |
| 147.78.168.0/23 | 2,490 | 2026-07-30 03:11:32 |
| 147.78.170.0/23 | 2,373 | 2026-07-30 03:11:32 |
Frequently Asked Questions
What is AS209531?
AS209531 is an Autonomous System Number assigned to OSTV 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 AS209531 announce?
AS209531 announces 1.3K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Slovakia.
Who operates AS209531?
AS209531 is operated by OSTV s.r.o.. The organization is based in Slovakia. You can view all IP ranges and related ASNs on the organization page.
What country is AS209531 registered in?
AS209531 is registered in Slovakia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
