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Autonomous System

AS48539

Bifrost Systems OU

Announced IPs
8,192
CIDR prefixes
29
ASN
AS48539

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Geographic scope Europe
Peering policy Open

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
45.85.122.0/23 512
0.0%
Bifrost Systems OU EE
185.209.86.0/23 512
0.0%
Bifrost Systems OU US
188.244.96.0/23 512
0.0%
Bifrost Systems OU US California Los Angeles
213.239.152.0/23 512
0.0%
Bifrost Systems OU EE
2.152.78.0/24 256
0.0%
Bifrost Systems OU EE
5.252.156.0/24 256
0.0%
Bifrost Systems OU GB England London
45.81.151.0/24 256
2.0%
Heymman Servers Corporation CA
45.85.120.0/24 256
0.0%
Bifrost Systems OU EE
45.85.123.0/24 256
0.0%
Bifrost Systems OU EE
79.98.39.0/24 256
0.0%
GB England London
87.192.81.0/24 256
3.1%
RCN IE
89.21.84.0/24 256
0.0%
OVH SAS UA
89.28.207.0/24 256
0.0%
Bifrost Systems OU UA
89.251.31.0/24 256
0.0%
HIVELOCITY, Inc. UA
109.205.189.0/24 256
0.0%
Bifrost Systems OU EE
130.78.10.0/24 256
0.0%
Bifrost Systems OU DE State of Berlin Berlin
146.19.131.0/24 256
0.0%
Bifrost Systems OU EE
152.89.195.0/24 256
44.9%
Cagri Topuz UA
178.17.247.0/24 256
0.0%
Bifrost Systems OU EE
178.212.137.0/24 256
0.0%
Bifrost Systems OU EE
188.66.25.0/24 256
0.0%
M247 Europe SRL UA
188.244.96.0/24 256
0.0%
IT
188.244.97.0/24 256
0.0%
DE State of Berlin Berlin
193.93.55.0/24 256
0.0%
Virtual Machine Solutions LLC UA
193.246.161.0/24 256
0.0%
Bifrost Systems OU EE
194.63.144.0/24 256
0.0%
Bifrost Systems OU EE
194.147.218.0/24 256
0.0%
Bifrost Systems OU EE
194.238.77.0/24 256
0.0%
Bifrost Systems OU EE
195.123.188.0/24 256
53.9%
NextServ LLC UA
213.109.181.0/24 256
0.0%
Bifrost Systems OU GB England London
213.218.163.0/24 256
0.8%
Bifrost Systems OU EE
217.180.23.0/24 256
0.0%
Bifrost Systems OU EE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS48539 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
193.93.55.0/24 109,880 2026-09-11 04:56:10
188.66.25.0/24 30,962 2026-09-11 04:15:30
45.85.120.0/24 27,351 2026-09-11 03:59:28
45.85.123.0/24 27,178 2026-09-11 03:59:18
45.81.151.0/24 26,839 2026-09-11 04:15:30
188.244.97.0/24 26,657 2026-09-11 04:01:31
213.218.163.0/24 26,595 2026-09-11 04:01:31
185.209.87.0/24 26,331 2026-09-11 04:56:13
45.85.122.0/24 26,199 2026-09-11 04:15:30
109.205.189.0/24 25,991 2026-09-11 04:15:30
194.147.218.0/24 25,266 2026-09-11 04:15:30
213.239.152.0/24 25,067 2026-09-11 04:15:30
217.180.23.0/24 24,805 2026-09-11 04:15:30
213.239.153.0/24 24,705 2026-09-11 04:15:30
146.19.131.0/24 24,231 2026-09-11 04:15:30
89.251.31.0/24 21,799 2026-09-11 04:15:30
193.246.161.0/24 21,137 2026-09-11 04:56:10
178.17.247.0/24 19,881 2026-09-11 04:58:58
5.252.156.0/24 17,928 2026-09-11 04:56:14
178.212.137.0/24 13,727 2026-09-11 03:44:01
185.209.86.0/24 13,296 2026-09-11 04:44:42
194.238.77.0/24 13,196 2026-09-11 04:44:37
130.78.10.0/24 13,158 2026-09-11 04:15:30
89.28.207.0/24 13,082 2026-09-11 05:10:07
195.123.188.0/24 11,148 2026-09-11 04:01:31
188.244.96.0/24 10,047 2026-09-11 05:00:54
194.63.144.0/24 9,256 2026-09-11 03:43:17
152.89.195.0/24 8,308 2026-09-11 04:45:00
89.21.84.0/24 5,718 2026-09-11 04:56:17
213.109.181.0/24 5,026 2026-09-11 04:55:55
87.192.81.0/24 4,081 2026-09-11 03:59:48
2.152.78.0/24 3,300 2026-09-11 04:44:42
79.98.39.0/24 1,797 2026-09-11 04:44:54
91.226.57.0/24 724 2026-09-11 04:49:44

Frequently Asked Questions

What is AS48539?

AS48539 is an Autonomous System Number assigned to Bifrost Systems OU. 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 AS48539 announce?

AS48539 announces 8.2K IPv4 addresses distributed across 29 routed CIDR prefixes. The network is registered in Estonia.

Who operates AS48539?

AS48539 is operated by Bifrost Systems OU. The organization is based in Estonia. You can view all IP ranges and related ASNs on the organization page.

What country is AS48539 registered in?

AS48539 is registered in Estonia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-11 05:09:06 UTC
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