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API Packages
  • IP Geolocation
  • Reverse Geocoding
  • Phone & Email Verification
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  • Free API
Tools
  • What is my IP?
  • IP Lookup
  • ASN Lookup
  • Network Lookup
Insights
  • Daily IP Geolocation Accuracy Report
  • ASN Rank by IPv4 space
  • Tor Exit Nodes
  • Bogon Routes
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Resources
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ACTIVE IPV4 PREFIXES
AS31 CIT
California Institute of Technology
Page 2

Powered By:
BGP Active Prefixes API
  1. Home
  2. Asn Lookup
  3. As31
  4. Prefixes
PrefixRange FromRange To
131.215.241.0/24131.215.241.0131.215.241.255
131.215.242.0/23131.215.242.0131.215.243.255
131.215.244.0/23131.215.244.0131.215.245.255
131.215.246.0/23131.215.246.0131.215.247.255
131.215.248.0/21131.215.248.0131.215.255.255
134.4.0.0/16134.4.0.0134.4.255.255
137.164.3.74/31137.164.3.74137.164.3.75
137.164.24.72/29137.164.24.72137.164.24.79
192.12.19.0/24192.12.19.0192.12.19.255
192.31.43.0/24192.31.43.0192.31.43.255
192.41.208.0/24192.41.208.0192.41.208.255
Showing 16 - 26 of 26 Results
12
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