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 1 internet exchange: Equinix Warsaw
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 193.109.212.0/24 | 256 |
20.7%
|
National Bank of Poland | PL | Mazovia | Warsaw |
| 195.85.196.0/24 | 256 |
14.1%
|
National Bank of Poland | PL | Mazovia | Warsaw |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21328 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 |
|---|---|---|
| 195.85.196.0/24 | 16,209 | 2026-08-03 04:34:21 |
| 193.109.212.0/24 | 15,832 | 2026-08-03 04:34:21 |
Frequently Asked Questions
What is AS21328?
AS21328 is an Autonomous System Number assigned to National Bank of Poland. 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 AS21328 announce?
AS21328 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Poland.
Who operates AS21328?
AS21328 is operated by National Bank of Poland. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.
What country is AS21328 registered in?
AS21328 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
