177.133.224.0/19 covers 177.133.224.0 to 177.133.255.255, 8,192 IPv4 addresses. It is announced by AS18881 (Telefônica Brasil S.A.). Every sampled address geolocates to Brazil, with 84% in Sao Paulo. It is registered to an internet service provider. 3% of sampled addresses are flagged as proxy.