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ASN Lookup Tool
AS51561 AS-ICUK

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS51561
Organisation
ICUK Computing Services Limited
Name
AS-ICUK
Total IPv4 Addresses
58725
Total IPv4 Prefixes
88
Total IPv6 Prefixes
17
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,921 out of 77,309
Registry
Ripe
Registered Country
GB flag GB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2010-09-28
Registration Last Change
2022-12-19
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS41805
IQ flagSAWAD LAND for Information Technology Ltd
AS328832
ZA flagNetwork Platforms (PTY) LTD
AS20562
NL flagBroadband Hosting B.V.
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications
Showing 5 of 58
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS13213
GB flagUK-2 Limited
AS201060
GB flagSNETTERTON TELECOM LIMITED
AS48325
GB flagBazTel Ltd
AS209505
GB flagUnchained ISP Limited
AS42330
GB flagUnchained ISP Limited
Showing 5 of 6
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix2.56.84.0/22
Range From2.56.84.0
Range To2.56.87.255
Prefix5.133.168.0/23
Range From5.133.168.0
Range To5.133.169.255
Prefix5.133.170.0/23
Range From5.133.170.0
Range To5.133.171.255
Prefix5.254.162.0/23
Range From5.254.162.0
Range To5.254.163.255
Prefix5.254.164.0/23
Range From5.254.164.0
Range To5.254.165.255
Showing 5 of 88
IPv6 Active Prefixes
Prefix2a00:b900::/47
Range From2a00:b900::
Range To2a00:b900:1:ffff:ffff:ffff:ffff:ffff
Prefix2a00:b900:2::/48
Range From2a00:b900:2::
Range To2a00:b900:2:ffff:ffff:ffff:ffff:ffff
Prefix2a00:b900:3::/48
Range From2a00:b900:3::
Range To2a00:b900:3:ffff:ffff:ffff:ffff:ffff
Prefix2a00:b900:4::/46
Range From2a00:b900:4::
Range To2a00:b900:7:ffff:ffff:ffff:ffff:ffff
Prefix2a00:b900:8::/45
Range From2a00:b900:8::
Range To2a00:b900:f:ffff:ffff:ffff:ffff:ffff
Showing 5 of 17
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.