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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
HERABIT S.p.A.
Name
CASAWEB-AS
Total IPv4 Addresses
78,438
Total IPv4 Prefixes
44
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,302 out of 79,333
Registry
Ripe
Registered Country
IT flagIT
Registered Country Name
Italy
Registered Date
2002-07-19
Registration Last Change
2025-11-19
Receiving From
ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS174
US flagCogent Communications, LLC
AS7713
ID flagTelekomunikasi Indonesia (PT)
AS9498
IN flagBharti Airtel Limited
AS8708
RO flagDIGI ROMANIA S.A.
Showing 5 of 28
Transit To
ASN
Organisation
AS31495
IT flagHERABIT 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.
AS29177
IT flagHERABIT S.p.A.
Showing 5 of 10
IPv4 Active Prefixes
PrefixRange FromRange To
5.63.136.0/215.63.136.05.63.143.255
31.216.240.0/2231.216.240.031.216.243.255
31.216.244.0/2231.216.244.031.216.247.255
31.216.248.0/2331.216.248.031.216.249.255
31.216.251.0/2431.216.251.031.216.251.255
Showing 5 of 44
IPv6 Active Prefixes
PrefixRange FromRange To
2a03:c380::/322a03:c380::2a03:c380:ffff:ffff:ffff:ffff:ffff:ffff