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ASN Lookup Tool
AS12570 ITSELF

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS12570
Organisation
O2 Czech Republic, a.s.
Name
ITSELF
Total IPv4 Addresses
50,432
Total IPv4 Prefixes
24
Total IPv6 Prefixes
2
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#4,127 out of 78,985
Registry
Ripe
Registered Country
CZ flagCZ
Registered Country Name
Czechia
Registered Date
2002-05-27
Registration Last Change
2024-06-20
Receiving From
ASN
Organisation
AS16246
CZ flagO2 Czech Republic, a.s.
Transit To
ASN
Organisation
AS197798
CZ flagNet-Connect s.r.o.
AS25192
CZ flagCZ.NIC, z.s.p.o.
AS51968
CZ flagNEOS v.o.s.
AS196815
CZ flagLAN servis s.r.o.
AS51424
CZ flagJiri Sperl
Showing 5 of 13
IPv4 Active Prefixes
PrefixRange FromRange To
80.78.144.0/2080.78.144.080.78.159.255
88.83.224.0/1988.83.224.088.83.255.255
89.190.40.0/2189.190.40.089.190.47.255
89.190.48.0/2289.190.48.089.190.51.255
89.190.54.0/2389.190.54.089.190.55.255
Showing 5 of 24
IPv6 Active Prefixes
PrefixRange FromRange To
2001:4ba8::/292001:4ba8::2001:4baf:ffff:ffff:ffff:ffff:ffff:ffff
2a0b:bb41::/322a0b:bb41::2a0b:bb41:ffff:ffff:ffff:ffff:ffff:ffff