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ASN Lookup Tool
AS21309 CASAWEB-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21309
Organisation
Acantho S.p.a
Name
CASAWEB-AS
Total IPv4 Addresses
61,131
Total IPv4 Prefixes
25
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,836 out of 77,548
Registry
Ripe
Registered Country
IT flag IT
Registered Country Name
Italy
Registered Date
2002-07-19
Registration Last Change
2023-11-08
Receiving From

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

ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS174
US flagCogent Communications
AS3269
IT flagTelecom Italia S.p.A.
AS9498
IN flagBharti Airtel Limited
AS8220
GB flagCOLT Technology Services Group Limited
Showing 5 of 21
Transit To

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

 

ASN
Organisation
AS29177
IT flagAcantho S.p.a
AS8884
IT flagCRIF S.p.A.
AS49535
IT flagE-Mind Srl
AS197807
IT flagEos sistemi s.r.l.
AS42933
IT flagAeroporto G. Marconi di Bologna s.p.a.
Showing 5 of 6
IPv4 Active Prefixes

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

Prefix5.63.136.0/21
Range From5.63.136.0
Range To5.63.143.255
Prefix77.89.0.0/20
Range From77.89.0.0
Range To77.89.15.255
Prefix77.89.16.0/20
Range From77.89.16.0
Range To77.89.31.255
Prefix77.89.32.0/20
Range From77.89.32.0
Range To77.89.47.255
Prefix77.89.48.0/20
Range From77.89.48.0
Range To77.89.63.255
Showing 5 of 25
IPv6 Active Prefixes
Prefix2a03:c380::/32
Range From2a03:c380::
Range To2a03:c380: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.