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 |
|---|---|---|---|---|---|---|
| 91.223.156.0/24 | 256 |
6.3%
|
ALRO S.A. | RO | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51885 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 |
|---|---|---|
| 91.223.156.0/24 | 11,144 | 2026-07-31 11:58:32 |
Frequently Asked Questions
What is AS51885?
AS51885 is an Autonomous System Number assigned to ALRO S.A.. 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 AS51885 announce?
AS51885 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Romania.
Who operates AS51885?
AS51885 is operated by ALRO S.A.. The organization is based in Romania. You can view all IP ranges and related ASNs on the organization page.
What country is AS51885 registered in?
AS51885 is registered in Romania. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
