186.237.128.0/23 covers 186.237.128.0 to 186.237.129.255, 512 IPv4 addresses. It is announced by AS28330 (IFTNET Telecomunicacoes Ltda). Every sampled address geolocates to Brazil, with 100% in Sao Jose do Rio Preto. 97% of it is registered to a business. 3% of sampled addresses are flagged as proxy.