AFN typically broadcasts outside the usual international broadcast meter bands. I'm not sure if they have a special exemption. 5446.5 is usually pretty weak here in Texas; 7811 is strongest here and audible throughout the day, with occasional fades; 10320 varies, sometimes I can get it at night during the summer. I'm not sure if 6350 is active, it's usually buried under jamming intended to QRM a South Korean clandestine on 6348 AM. Ironically, it only blocks AFN because the jammer seems to be mostly USB; tuning to 6348 LSB brings in the clandestine fairly well.