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 →Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 81.163.72.0/21 | 2.0K |
0.0%
|
Sia Netvision | LV | Valmiera | Valmiera |
| 193.0.136.0/22 | 1.0K |
0.0%
|
Sia Netvision | LV | Valmiera | Valmiera |
| 195.211.156.0/22 | 1.0K |
0.3%
|
Sia Netvision | LV | Valmiera | Valmiera |
| 193.0.140.0/23 | 512 |
0.2%
|
Sia Netvision | LV | Valmiera | Strenči |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS57223 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 |
|---|---|---|
| 81.163.72.0/21 | 9,967 | 2026-07-23 22:26:00 |
| 195.211.156.0/22 | 9,113 | 2026-07-23 22:26:00 |
| 193.0.140.0/23 | 9,095 | 2026-07-23 22:26:00 |
| 193.0.136.0/22 | 9,093 | 2026-07-23 22:26:00 |
Frequently Asked Questions
What is AS57223?
AS57223 is an Autonomous System Number assigned to Sia Netvision. 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 AS57223 announce?
AS57223 announces 4.6K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Latvia.
Who operates AS57223?
AS57223 is operated by Sia Netvision. The organization is based in Latvia. You can view all IP ranges and related ASNs on the organization page.
What country is AS57223 registered in?
AS57223 is registered in Latvia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
