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ASN Lookup Tool
AS21254 CTM-ASN

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21254
Organisation
CITCO TECHNOLOGY MANAGEMENT (SWITZERLAND) SA
Name
CTM-ASN
Total IPv4 Addresses
1,536
Total IPv4 Prefixes
6
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#26,821 out of 79,215
Registry
Ripe
Registered Country
CH flagCH
Registered Country Name
Switzerland
Registered Date
2007-05-25
Registration Last Change
2025-12-16
Receiving From
ASN
Organisation
AS8220
GB flagCOLT Technology Services Group Limited
IPv4 Active Prefixes
PrefixRange FromRange To
77.246.128.0/2477.246.128.077.246.128.255
77.246.129.0/2477.246.129.077.246.129.255
77.246.130.0/2477.246.130.077.246.130.255
77.246.131.0/2477.246.131.077.246.131.255
77.246.133.0/2477.246.133.077.246.133.255
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