208.58.128.0/20 covers 208.58.128.0 to 208.58.143.255, 4,096 IPv4 addresses. It is announced by AS6079 (RCN Telecom Services, LLC). Every sampled address geolocates to United States, with 94% in Philadelphia. 97% of it is registered to an internet service provider. None of the sampled addresses are flagged as VPN, proxy or Tor.