I get calls from nigeria country code 234 many numbers. It started when I got a new phone number. sometimes i answer and tell them never to call back then the calls start coming from another nigerian number. Here is a list of the Nigerian numbers calling me. There are more but you get the picture
802-376-1216, 805-934-5015, 803-808-1861, 803-488-4464, 805-225-1156, 806-640-1448,809-332-7620, 803-612-0120, 806-572-2141, 803-800-2816