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ASN Lookup Tool
AS13037 ZEN-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS13037
Organisation
Zen Internet Ltd
Name
ZEN-AS
Total IPv4 Addresses
731929
Total IPv4 Prefixes
33
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#458 out of 76,387
Registry
Ripe
Registered Country
GB flag GB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2002-09-20
Registration Last Change
2023-08-02
Receiving From

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

ASN
Organisation
AS8714
GB flagLondon Internet Exchange Ltd.
AS20562
NL flagBroadband Hosting B.V.
AS41805
IQ flagSAWAD LAND for Information Technology Ltd
AS33891
DE flagCore-Backbone GmbH
AS2914
US flagNTT America, Inc.
Showing 5 of 73
Transit To

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

 

ASN
Organisation
AS13037
GB flagZen Internet Ltd
AS64999
WORLD flagPrivate Use AS
AS208697
GB flagKellogg Management Services (Europe) Limited
AS15248
US flagMetaswitch Networks Corp.
AS203460
GB flagViridian Communications Limited
Showing 5 of 8
IPv4 Active Prefixes

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

Prefix37.252.48.0/20
Range From37.252.48.0
Range To37.252.63.255
Prefix51.148.0.0/16
Range From51.148.0.0
Range To51.148.255.255
Prefix51.155.0.0/16
Range From51.155.0.0
Range To51.155.255.255
Prefix51.170.0.0/16
Range From51.170.0.0
Range To51.170.255.255
Prefix62.3.64.0/18
Range From62.3.64.0
Range To62.3.127.255
Showing 5 of 33
IPv6 Active Prefixes
Prefix2a02:8010::/29
Range From2a02:8010::
Range To2a02:8017:ffff:ffff:ffff:ffff:ffff:ffff
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.