221.199.130.0/23 covers 221.199.130.0 to 221.199.131.255, 512 IPv4 addresses. It is announced by AS4837 (China Unicom). Every sampled address geolocates to China, with 100% in Hohhot. It is registered to an internet service provider. None of the sampled addresses are flagged as VPN, proxy or Tor.