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ASN Lookup Tool
AS5517 CSL

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS5517
Organisation
CSL Computer Service Langenbach GmbH
Name
CSL
Total IPv4 Addresses
139,262
Total IPv4 Prefixes
3
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,421 out of 77,684
Registry
Ripe
Registered Country
DE flag DE
Registered Country Name
Germany
Registered Date
1970-01-01
Registration Last Change
2023-10-30
Receiving From

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

ASN
Organisation
AS8881
DE flag1&1 Versatel Deutschland GmbH
AS8220
GB flagCOLT Technology Services Group Limited
IPv4 Active Prefixes

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

Prefix159.25.0.0/16
Range From159.25.0.0
Range To159.25.255.255
Prefix194.176.0.0/19
Range From194.176.0.0
Range To194.176.31.255
Prefix194.245.0.0/16
Range From194.245.0.0
Range To194.245.255.255
IPv6 Active Prefixes
Prefix2a01:4fc0::/34
Range From2a01:4fc0::
Range To2a01:4fc0:3fff: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.