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
354816
Total IPv4 Prefixes
20
Total IPv6 Prefixes
2
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#739 out of 76,964
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
US flagCogent Communications
NL flagSURF B.V.
CH flagSwisscom (Schweiz) AG
CH flagSunrise GmbH
US flagESnet
Showing 5 of 11
Transit To

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

 

ASN
Organisation
NL flagAkamai International B.V.
WORLD flagPrivate Use AS
WORLD flagPrivate Use AS
CH flagETAT DE GENEVE
CH flagWorld Health Organization (WHO)
Showing 5 of 25
IPv4 Active Prefixes

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

Showing 5 of 20
IPv6 Active Prefixes
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.