Well you can block your number with *67
Can I send someone a text message and have a difference number show up. And if they send a text back will it come to my phone?
Solution - buy an additional simcard to swap with your original simcard.
You can call people. I don't believe you can text. If you dial *67 before their number it will come as a private caller.
Hello. I think you can hide your number, but if they reply it will send it back to you.
You can use this site www.mobileincanada.com to send SMS anonymus to anybody, but they will not able to answer to your message...