170.253.16.0/20 covers 170.253.16.0 to 170.253.31.255, 4,096 IPv4 addresses. It is announced by AS15704 (Xtra Telecom S.A.). Every sampled address geolocates to Spain, with 56% in Palencia. It is registered to an internet service provider. None of the sampled addresses are flagged as VPN, proxy or Tor.