AS8508
Silesian University of Technology, Computer Centre
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
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 3 internet exchanges: EPIX.Katowice, THINX Warsaw, TPIX PL
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 155.158.0.0/16 | 65.5K |
34.3%
|
Silesian University of Technology, Computer Centre | PL | Silesia | Katowice |
| 157.158.0.0/16 | 65.5K |
2.8%
|
Silesian University of Technology, Computer Centre | PL | Silesia | Zabrze |
| 83.230.96.0/19 | 8.2K |
10.9%
|
Silesian University of Technology, Computer Centre | PL | Silesia | Mikołów |
| 213.227.96.0/19 | 8.2K |
1.4%
|
Silesian University of Technology, Computer Centre | PL | Silesia | Katowice |
| 83.230.64.0/20 | 4.1K |
0.1%
|
Silesian University of Technology, Computer Centre | PL | Silesia | Katowice |
| 212.106.176.0/20 | 4.1K |
28.2%
|
Silesian University of Technology, Computer Centre | PL | Silesia | Gliwice |
| 213.227.80.0/20 | 4.1K |
26.7%
|
Silesian University of Technology, Computer Centre | PL | — | — |
| 91.220.103.0/24 | 256 |
98.0%
|
Silesian University of Technology, Computer Centre | PL | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS8508 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 |
|---|---|---|
| 213.227.80.0/20 | 201,591 | 2026-07-23 18:59:44 |
| 83.230.96.0/19 | 193,062 | 2026-07-23 18:59:44 |
| 83.230.64.0/20 | 191,144 | 2026-07-23 18:59:44 |
| 83.230.64.0/21 | 190,524 | 2026-07-23 18:59:44 |
| 91.220.103.0/24 | 183,222 | 2026-07-23 18:59:44 |
| 157.158.0.0/16 | 170,955 | 2026-07-23 18:59:44 |
| 213.227.96.0/19 | 164,649 | 2026-07-23 18:59:44 |
| 212.106.176.0/20 | 136,520 | 2026-07-23 18:57:25 |
| 155.158.0.0/16 | 77,271 | 2026-07-23 18:59:44 |
| 83.230.110.0/24 | 15,911 | 2026-07-23 18:55:31 |
| 213.227.88.0/21 | 14,658 | 2026-07-23 18:55:24 |
| 83.230.118.0/23 | 10,606 | 2026-07-23 18:56:55 |
| 212.106.183.0/24 | 10,592 | 2026-07-23 18:56:55 |
| 212.106.184.0/22 | 10,562 | 2026-07-23 18:56:55 |
| 83.230.99.0/24 | 9,636 | 2026-07-23 18:56:55 |
Frequently Asked Questions
What is AS8508?
AS8508 is an Autonomous System Number assigned to Silesian University of Technology, Computer Centre. 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 AS8508 announce?
AS8508 announces 160.0K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Poland.
Who operates AS8508?
AS8508 is operated by Silesian University of Technology, Computer Centre. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.
What country is AS8508 registered in?
AS8508 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
