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ASN Lookup Tool
AS29321 CentroNetAS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS29321
Organisation
O2 Czech Republic, a.s.
Name
CentroNetAS
Total IPv4 Addresses
15,360
Total IPv4 Prefixes
5
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#7,603 out of 79,010
Registry
Ripe
Registered Country
CZ flagCZ
Registered Country Name
Czechia
Registered Date
2003-07-31
Registration Last Change
2024-06-20
Receiving From
ASN
Organisation
AS16246
CZ flagO2 Czech Republic, a.s.
IPv4 Active Prefixes
PrefixRange FromRange To
80.243.96.0/2080.243.96.080.243.111.255
94.143.168.0/2194.143.168.094.143.175.255
109.239.64.0/20109.239.64.0109.239.79.255
194.59.240.0/22194.59.240.0194.59.243.255
217.195.160.0/20217.195.160.0217.195.175.255
IPv6 Active Prefixes
PrefixRange FromRange To
2a02:b20::/322a02:b20::2a02:b20:ffff:ffff:ffff:ffff:ffff:ffff