89.153.0.0/18 covers 89.153.0.0 to 89.153.63.255, 16,384 IPv4 addresses. It is announced by AS2860 (NOS Comunicações, S.A.). Every sampled address geolocates to Portugal, with 28% in Senhora do Porto. It is registered to an internet service provider. 3% of sampled addresses are flagged as proxy.