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ASN Lookup Tool
AS43542 OptoNet-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS43542
Organisation
OptoNet Communication, spol. s.r.o.
Name
OptoNet-AS
Total IPv4 Addresses
7,936
Total IPv4 Prefixes
5
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#11,423 out of 79,013
Registry
Ripe
Registered Country
CZ flagCZ
Registered Country Name
Czechia
Registered Date
2007-08-20
Registration Last Change
2024-06-07
Receiving From
ASN
Organisation
AS16019
CZ flagVodafone Czech Republic a.s.
AS6855
SK flagSlovak Telekom, a.s.
AS6939
US flagHurricane Electric LLC
AS32590
US flagValve Corporation
AS49544
NL flagi3D.net B.V
Showing 5 of 14
Transit To
ASN
Organisation
AS207945
CZ flagCNI Group s.r.o.
AS48091
CZ flagKraj Vysocina
AS202979
CZ flagNGA Services, spol. s r.o.
AS44104
CZ flagLCJ Invest, a.s.
IPv4 Active Prefixes
PrefixRange FromRange To
78.156.128.0/2178.156.128.078.156.135.255
78.156.136.0/2278.156.136.078.156.139.255
78.156.141.0/2478.156.141.078.156.141.255
78.156.142.0/2378.156.142.078.156.143.255
78.156.144.0/2078.156.144.078.156.159.255
IPv6 Active Prefixes
PrefixRange FromRange To
2a00:d940::/322a00:d940::2a00:d940:ffff:ffff:ffff:ffff:ffff:ffff