Who called from 2547265859

Keep getting calls and texts from this number.  The texts seem like they are coming from some place in Africa.  The calls only have a radio playing in the background and no one speaks.  This has happened a handful of times.  I text them back to stop calling and texting me twice.  I won't acknowledge the calls or texts any longer. The phone number comes in different variations.  254726585971, 25472733919, 1125472658.

this number keep calling in defferent variation and free from blocking. Most time it calls in midningt.  It is so annoying

call comes up unavailable on my cell phone, leaves no message.

2 calls on land line 9-7-2016 from 254-726402409 - no message left. 254 is WACO Texas area code. I did not respond.