Comcast has large gray boxes installed on some telephone pole lines that are wifi access points (with an ssid of xfinitywifi). They are installed in many citie

Comcast has large gray boxes installed on some telephone pole lines that are wifi access points (with an ssid of xfinitywifi). They are installed in many cities across the country (including in NJ) and can be found on this map: http://www.att.com/maps/wifi.html http://www.att.com/maps/wifi.html (ignore the fact that this information is hosted on an att.com website)