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ASN Lookup Tool
AS41230 ASK4

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS41230
Organisation
ASK4 Limited
Name
ASK4
Total IPv4 Addresses
88,320
Total IPv4 Prefixes
16
Total IPv6 Prefixes
7
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,079 out of 78,154
Registry
Ripe
Registered Country
GB flag GB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2006-07-05
Registration Last Change
2024-03-07
Receiving From

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

ASN
Organisation
AS209735
GB flagLagrange Cloud Technologies Limited
AS20562
NL flagBroadband Hosting B.V.
AS33891
DE flagCore-Backbone GmbH
AS2914
US flagNTT America, Inc.
AS3303
CH flagSwisscom (Schweiz) AG
Showing 5 of 64
Transit To

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

 

ASN
Organisation
AS8916
GB flagPortfast Ltd
AS30933
GB flagKDA WEB SERVICES LTD
IPv4 Active Prefixes

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

Prefix31.205.0.0/18
Range From31.205.0.0
Range To31.205.63.255
Prefix31.205.64.0/18
Range From31.205.64.0
Range To31.205.127.255
Prefix31.205.128.0/18
Range From31.205.128.0
Range To31.205.191.255
Prefix31.205.192.0/18
Range From31.205.192.0
Range To31.205.255.255
Prefix45.81.120.0/22
Range From45.81.120.0
Range To45.81.123.255
Showing 5 of 16
IPv6 Active Prefixes
Prefix2a00:1a10::/29
Range From2a00:1a10::
Range To2a00:1a17:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a07:c300::/29
Range From2a07:c300::
Range To2a07:c307:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a0e:2a40::/29
Range From2a0e:2a40::
Range To2a0e:2a47:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a0e:2ac0::/29
Range From2a0e:2ac0::
Range To2a0e:2ac7:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a0e:5680::/29
Range From2a0e:5680::
Range To2a0e:5687:ffff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 7
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.