Comcast Unlimited customers: Calls placed to Canada, Puerto Rico, Guam, US Virgin Islands, America Samoa, Saipan, and N. Mariana Islands are included in your calling plan and there is no additional charge for these calls.
Local with More customers: You will be charged $0.05/minute for calls placed to Canada, Puerto Rico, Guam, US Virgin Islands, America Samoa, Saipan, and N. Mariana Islands.
I travel to PR quite a bit so this topic is of particular interest to me. I've had problems with Xfinity mobile regarding PR. It is Xfinity's intent to treat PR as the other major carriers, att, Verizon, do. However, they have some ways to go. I've called out from PR to discover that I had to use operator assistant and the calls were charged at Int'l rates. I have spoken to them on various occassions and they claim that they will correct this problem but it's taking a long time and every time I call them translates into extremely long wait periods. I like their cost structure so I'm being very patient with them but wonder if I can hold out.