I get about 1 text message from this number every day.  Sometimes several a day.  Sometimes there is swearing, sometimes "I love you" type messages, but never anything personal like "call me" or "good seing you yesterday"  Here is one: "I'm so f**king p*ssed off. Y did you have to open ur big [***] mouth.  Now everyone knows I'm f**king sexy"  Odd.  Could be kids playing a prank.  Figure if I ignore it it will go away but it has gone on for about 3 months now.  The least I can do is list their number online and maybe get them some spam/telemarketers.