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
- Isp allocation +5
- Trust score 70 / 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 |
|---|---|---|---|---|---|---|
| 91.221.134.0/23 | 512 |
41.6%
|
Netpro ISP d.o.o | RS | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51927 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 |
|---|---|---|
| 91.221.134.0/23 | 9,490 | 2026-07-31 00:11:51 |
Frequently Asked Questions
What is AS51927?
AS51927 is an Autonomous System Number assigned to Netpro ISP d.o.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 AS51927 announce?
AS51927 announces 512 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Serbia.
Who operates AS51927?
AS51927 is operated by Netpro ISP d.o.o. The organization is based in Serbia. You can view all IP ranges and related ASNs on the organization page.
What country is AS51927 registered in?
AS51927 is registered in Serbia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
