186.237.138.0/23 covers 186.237.138.0 to 186.237.139.255, 512 IPv4 addresses. It is announced by AS28330 (IFTNET Telecomunicacoes Ltda). Every sampled address geolocates to Brazil, with 97% in Barueri. 97% of it is registered to a business. None of the sampled addresses are flagged as VPN, proxy or Tor.