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Autonomous System

AS50113

First Server Limited

Announced IPs
3,840
CIDR prefixes
11
ASN
AS50113

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 6 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS50113 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
5.101.88.0/24 AS50113, AS207569 2026-07-22 23:23:24
185.255.134.120/32 AS50113, AS204997 2026-07-22 23:23:24
46.17.104.122/32 AS50113, AS204997 2026-07-22 18:53:23
194.63.142.0/24 AS50113, AS207569 2026-07-21 13:38:11
185.180.230.0/24 AS50113, AS204997 2026-07-21 13:38:11
194.63.140.0/24 AS50113, AS207569 2026-07-21 13:38:11

Network profile

Source: PeeringDB →
Network type Enterprise
Traffic level 5-10Gbps
Geographic scope Europe
Traffic ratio Mostly Outbound
Peering policy Restrictive
IRR record AS-NTX

Present at 1 internet exchange: Eurasia Peering IX: Peering LAN

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS50113 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
132.243.27.0/24 35,621 2026-07-23 09:39:06
91.217.77.0/24 33,470 2026-07-23 09:39:06
193.168.226.0/24 33,058 2026-07-23 09:39:06
194.63.143.0/24 32,950 2026-07-23 09:39:06
192.162.102.0/24 32,932 2026-07-23 09:39:06
185.174.139.0/24 32,924 2026-07-23 09:39:06
192.162.103.0/24 32,899 2026-07-23 09:39:06
193.0.203.0/24 32,867 2026-07-23 09:39:06
192.162.101.0/24 32,866 2026-07-23 09:39:06
193.0.200.0/24 32,864 2026-07-23 09:39:06
192.162.100.0/24 32,807 2026-07-23 09:39:06
193.0.202.0/24 32,780 2026-07-23 09:39:06
194.63.141.0/24 32,727 2026-07-23 09:39:06
185.188.180.0/24 17,718 2026-07-23 09:37:12
5.101.88.0/24 8,525 2026-07-23 09:35:40
185.255.134.120/32 277 2026-07-23 09:11:23
185.255.133.170/32 33 2026-07-17 15:25:22
185.180.230.0/24 12 2026-07-20 13:46:04
194.63.140.0/24 12 2026-07-20 13:48:12
194.63.142.0/24 12 2026-07-20 13:48:12
45.144.66.153/32 4 2026-06-29 18:16:23
46.17.104.122/32 2 2026-07-21 18:57:51
46.17.104.126/32 2 2026-07-08 22:07:43
132.243.19.35/32 1 2026-07-03 18:32:59
5.252.116.117/32 1 2026-06-11 11:27:31
132.243.18.47/32 1 2026-07-13 08:02:14
193.109.78.239/32 1 2026-07-13 16:18:50
104.128.141.104/32 1 2026-05-23 07:59:10
132.243.18.253/32 1 2026-07-07 05:37:17
185.195.24.154/32 1 2026-07-07 12:18:00
185.195.24.121/32 1 2026-07-09 12:34:03

Frequently Asked Questions

What is AS50113?

AS50113 is an Autonomous System Number assigned to First Server Limited. 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 AS50113 announce?

AS50113 announces 3.8K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in Russia.

Who operates AS50113?

AS50113 is operated by First Server Limited. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS50113 registered in?

AS50113 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 09:40:31 UTC
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