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// ASN

AS204154

FIRST-SERVER-US-AS, GB

Detailed information about the Autonomous System. Need another one? Look up a different ASN.

ASN
AS204154
Organization
FIRST SERVER LIMITED
Description
FIRST-SERVER-US-AS, GB
Country
GB
Address
Dummy address for ORG-FSL27-RIPE
Registry (RIR)
RIPE
Created
2022-11-25
Updated
2026-03-26
IPv4 Prefixes
6
IPv6 Prefixes
1

IPv4 Prefixes

6 total
132.243.28.0/23
185.172.129.0/24
185.200.191.0/24
45.86.47.0/24
46.17.107.0/24
92.118.10.0/24

IPv6 Prefixes

1 total
2a04:5201:1::/48

What is AS204154?

AS204154 is an Autonomous System Number (ASN) assigned to FIRST SERVER LIMITED. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.

Looking for more ASN data?

Use our ASN Lookup Tool for real-time WHOIS queries, or explore our API documentation to integrate ASN data into your applications.