Chart Mobile Canada LTE 3G APN for Windows Phone 10, 8, 8.1, 7, Nokia Lumia 1020,1320,520,635
Chatr Mobile APN Settings for Windows Phone
Windows Phone Tap Settings -> Network & Wireless -> Cellular & SIM Settings -> Add Internet APN

INTERNET APN:
Profile Name: Internet
APN: chatrweb.apn
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy server (URL): Blank
Proxy Port : Blank
MMS APN:
Profile Name: MMS
APN: chatrweb.apn
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy Server : 205.151.11.11
Proxy Port : 8080
MMSC (URL): http://mms.chartwireless.com
MMSC Port: Blank
Maximum MMS Size (KB): 1024

INTERNET APN:
Profile Name: Internet
APN: chatrweb.apn
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy server (URL): Blank
Proxy Port : Blank
MMS APN:
Profile Name: MMS
APN: chatrweb.apn
User name: Blank
Password: Blank
Type of Sing-in-info : None
IP Type :Ipv4
Proxy Server : 205.151.11.11
Proxy Port : 8080
MMSC (URL): http://mms.chartwireless.com
MMSC Port: Blank
Maximum MMS Size (KB): 1024