Who called from 2406811033

got a message from this number n my cell phone, do not know who it is

Received a text from this number today. They somehow knew my name and they asked me to add them on yahoo messenger. Username was ellieflirter1. Never received a response when I asked who it was.

Also got a text from this-they knew my name and asked me to add them on yahoo.

You just sent me a text. Who are you?

Got a text "Hey Stephanie". Possibly could be someone from online dating sites? Not someone I've chatted with, but perhaps someone hacking into one of those sites...