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ASN Lookup Tool
AS513 CERN

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS513
Organisation
CERN - European Organization for Nuclear Researc..
Name
CERN
Total IPv4 Addresses
354,816
Total IPv4 Prefixes
20
Total IPv6 Prefixes
2
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#726 out of 78,607
Registry
Ripe
Registered Country
CH flag CH
Registered Country Name
Switzerland
Registered Date
2001-10-22
Registration Last Change
2022-02-17
Receiving From

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

ASN
Organisation
AS174
US flagCogent Communications
AS6730
CH flagSunrise GmbH
AS293
US flagESnet
AS6939
US flagHurricane Electric LLC
AS13030
CH flagInit7 (Switzerland) Ltd.
Showing 5 of 11
Transit To

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

 

ASN
Organisation
AS20940
NL flagAkamai International B.V.
AS64512
WORLD flagPrivate Use AS
AS64555
WORLD flagPrivate Use AS
AS21449
CH flagETAT DE GENEVE
AS65020
WORLD flagPrivate Use AS
Showing 5 of 19
IPv4 Active Prefixes

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

Prefix128.141.0.0/16
Range From128.141.0.0
Range To128.141.255.255
Prefix128.142.0.0/16
Range From128.142.0.0
Range To128.142.255.255
Prefix137.138.0.0/16
Range From137.138.0.0
Range To137.138.255.255
Prefix185.249.56.0/22
Range From185.249.56.0
Range To185.249.59.255
Prefix188.184.0.0/16
Range From188.184.0.0
Range To188.184.255.255
Showing 5 of 20
IPv6 Active Prefixes
Prefix2001:1458::/32
Range From2001:1458::
Range To2001:1458:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1459::/32
Range From2001:1459::
Range To2001:1459:ffff:ffff:ffff:ffff:ffff:ffff