186.51.16.0/20 covers 186.51.16.0 to 186.51.31.255, 4,096 IPv4 addresses. It is announced by AS6057 (Administración Nacional de Telecomunicaciones). Every sampled address geolocates to Uruguay, with 100% in Montevideo. It is registered to a business. None of the sampled addresses are flagged as VPN, proxy or Tor.