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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
About ESET
ESET is a Slovak cybersecurity company headquartered in Bratislava. Founded in 1992 by Miroslav Trnka, Peter Paško and Rudolf Hrubý, it originated from the NOD antivirus software developed by Trnka and Paško in 1987.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 91.228.164.0/22 | 1.0K |
99.0%
|
ESET, spol. s r.o. | SK | Bratislava Region | Bratislava |
| 38.90.226.0/23 | 512 |
50.8%
|
ESET, spol. s r.o. | US | California | San Diego |
| 91.228.164.0/23 | 512 |
98.4%
|
ESET, spol. s r.o. | SK | Bratislava Region | Bratislava |
| 185.94.158.0/23 | 512 |
0.0%
|
ESET, spol. s r.o. | SK | Bratislava Region | Bratislava |
| 91.228.166.0/24 | 256 |
99.6%
|
ESET, spol. s r.o. | SK | — | — |
| 91.228.167.0/24 | 256 |
99.6%
|
ESET, spol. s r.o. | DE | — | — |
| 185.94.157.0/24 | 256 |
0.8%
|
ESET, spol. s r.o. | SK | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS50881 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 |
|---|---|---|
| 185.94.159.0/24 | 245,710 | 2026-10-13 23:44:22 |
| 185.94.158.0/24 | 39,352 | 2026-10-13 20:48:40 |
| 91.228.167.0/24 | 35,340 | 2026-10-13 22:28:28 |
| 91.228.164.0/24 | 31,991 | 2026-10-13 22:28:24 |
| 185.94.157.0/24 | 31,850 | 2026-10-13 22:35:42 |
| 91.228.165.0/24 | 31,287 | 2026-10-13 22:28:24 |
| 91.228.166.0/24 | 31,256 | 2026-10-13 22:28:24 |
| 38.90.227.0/24 | 24,278 | 2026-10-13 23:10:04 |
| 38.90.226.0/24 | 24,273 | 2026-10-13 23:10:04 |
Frequently Asked Questions
What is AS50881?
AS50881 is an Autonomous System Number assigned to ESET, spol. s r.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 AS50881 announce?
AS50881 announces 2.3K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Slovakia.
Who operates AS50881?
AS50881 is operated by ESET, spol. s r.o.. The organization is based in Slovakia. You can view all IP ranges and related ASNs on the organization page.
What country is AS50881 registered in?
AS50881 is registered in Slovakia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
