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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
61326
Total IPv4 Prefixes
25
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,835 out of 76,369
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
AS3269
IT flagTelecom Italia S.p.A.
AS174
US flagCogent Communications
AS7713
ID flagTelekomunikasi Indonesia (PT)
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.