I didn't call these numbers.

[riken]

Why are there calls on my bill that I didn't make? It's not costing me anything but still someone is calling Buffalo several times a week. Has my phone line been hacked?

[Anthony_VZ]

Sorry to hear about the troubles with the call logs. Looking at the timestamps was the telephone in use at the time?

[smith6612]

Anthony makes a good point. If you aren't dialing during those times or if it's happening at random hours of the day or night, I'd investigate devices connected to the line to see if perhaps one dials out automatically on a periodic basis, such as a satellite receiver, alarm system, or some other system.