203.143.0.0/18 covers 203.143.0.0 to 203.143.63.255, 16,384 IPv4 addresses. It is announced by AS5087 (Lanka Communication Services Private Ltd). Every sampled address geolocates to Sri Lanka, with 59% in Colombo. 91% of it is registered to a hosting or cloud provider. None of the sampled addresses are flagged as VPN, proxy or Tor.