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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
#755 out of 79,124
Registry
Ripe
Registered Country
CH flagCH
Registered Country Name
Switzerland
Registered Date
2001-10-22
Registration Last Change
2022-02-17
Receiving From
ASN
Organisation
AS174
US flagCogent Communications
AS1103
NL flagSURF B.V.
AS6730
CH flagSunrise GmbH
AS293
US flagESnet
AS6939
US flagHurricane Electric LLC
Showing 5 of 12
Transit To
ASN
Organisation
AS20940
NL flagAkamai International B.V.
AS64512
WORLD flagPrivate Use AS
AS21449
CH flagETAT DE GENEVE
AS65009
WORLD flagPrivate Use AS
AS28810
CH flagWorld Health Organization (WHO)
Showing 5 of 21
IPv4 Active Prefixes
PrefixRange FromRange To
128.141.0.0/16128.141.0.0128.141.255.255
128.142.0.0/16128.142.0.0128.142.255.255
137.138.0.0/16137.138.0.0137.138.255.255
185.249.56.0/22185.249.56.0185.249.59.255
188.184.0.0/16188.184.0.0188.184.255.255
Showing 5 of 20
IPv6 Active Prefixes
PrefixRange FromRange To
2001:1458::/322001:1458::2001:1458:ffff:ffff:ffff:ffff:ffff:ffff
2001:1459::/322001:1459::2001:1459:ffff:ffff:ffff:ffff:ffff:ffff