AS15851
Wroclaw Centre of Networking and Supercomputing
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 |
|---|---|---|---|---|---|---|
| 213.231.224.0/19 | 8.2K |
98.9%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 213.231.208.0/20 | 4.1K |
0.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 212.127.64.0/21 | 2.0K |
6.8%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 212.127.80.0/21 | 2.0K |
0.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 213.231.200.0/21 | 2.0K |
0.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 212.127.72.0/22 | 1.0K |
12.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | Lower Silesia | Wroclaw |
| 213.231.192.0/22 | 1.0K |
1.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 212.127.76.0/23 | 512 |
0.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 213.231.198.0/23 | 512 |
0.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 212.127.79.0/24 | 256 |
0.0%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
| 213.231.196.0/24 | 256 |
99.2%
|
Wroclaw Centre of Networking and Supercomputing | PL | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS15851 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 |
|---|---|---|
| 213.231.192.0/18 | 9,387 | 2026-07-23 21:26:12 |
| 212.127.64.0/19 | 9,169 | 2026-07-23 21:26:12 |
Frequently Asked Questions
What is AS15851?
AS15851 is an Autonomous System Number assigned to Wroclaw Centre of Networking and Supercomputing. 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 AS15851 announce?
AS15851 announces 22.0K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in Poland.
Who operates AS15851?
AS15851 is operated by Wroclaw Centre of Networking and Supercomputing. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.
What country is AS15851 registered in?
AS15851 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
