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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
61,175
Total IPv4 Prefixes
59
Total IPv6 Prefixes
17
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,808 out of 78,162
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
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications
AS2914
US flagNTT America, Inc.
AS13335
US flagCloudflare, Inc.
AS7575
AU flagAustralian Academic and Research Network
Showing 5 of 17
Transit To

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

 

ASN
Organisation
AS201060
GB flagSNETTERTON TELECOM LIMITED
AS199204
GB flagWebmate Internet Services Ltd.
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 59
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