BigDataCloud
API Packages
  • IP Geolocation
  • Reverse Geocoding
  • Phone & Email Verification
  • Network Engineering
  • 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
  • IPv4 Address Space Report
  • IPv6 Address Space Report
Resources
  • Getting Started
  • Support Articles
  • Blog
BigDataCloud LogoBigDataCloud Logo
API Packages
  • IP Geolocation
  • Reverse Geocoding
  • Phone & Email Verification
  • Network Engineering
  • 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
  • IPv4 Address Space Report
  • IPv6 Address Space Report
Resources
  • Getting Started
  • Support Articles
  • Blog

ACTIVE IPV4 PREFIXES
AS3661 ERX-CUHKNET
The Chinese University of Hong Kong

Powered By:
BGP Active Prefixes API
  1. Home
  2. Asn Lookup
  3. As3661
  4. Prefixes
PrefixRange FromRange To
103.49.160.0/22103.49.160.0103.49.163.255
123.255.64.0/21123.255.64.0123.255.71.255
137.189.0.0/17137.189.0.0137.189.127.255
137.189.128.0/18137.189.128.0137.189.191.255
137.189.192.0/22137.189.192.0137.189.195.255
137.189.196.0/24137.189.196.0137.189.196.255
137.189.197.0/24137.189.197.0137.189.197.255
137.189.198.0/23137.189.198.0137.189.199.255
137.189.200.0/21137.189.200.0137.189.207.255
137.189.208.0/20137.189.208.0137.189.223.255
137.189.224.0/19137.189.224.0137.189.255.255
175.159.224.0/22175.159.224.0175.159.227.255
202.40.216.0/24202.40.216.0202.40.216.255
203.188.64.0/20203.188.64.0203.188.79.255
Showing 1 - 14 of 14 Results
1
  • Packages
  • IP Geolocation
  • Reverse Geocoding
  • Phone & Email Verification
  • Network Engineering
  • Free API
  • Tools
  • What is my IP?
  • Update My Location
  • IP Lookup
  • ASN Lookup
  • Network Lookup
  • Insights
  • Daily IP Geolocation Accuracy Report
  • ASN Rank by IPv4 space
  • Tor Exit Nodes
  • Bogon Routes
  • IPv4 Address Space Report
  • IPv6 Address Space Report
  • Developers
  • Getting started
  • Support Articles
  • Blog
  • Company
  • About Us
  • Contact Us
  • Privacy Policy
  • Terms and Conditions
  • Free Mobile App IP Tools for Network Insights
  • Download BigDataCloud iOS App
  • Download BigDataCloud Android App
Copyright © 2025 — BigDataCloud Pty Ltd