The same way you save you friends, parents etc... contacts into your phone, the same way they all save your contacts into their phones, actually if it's a new phone number you have, you will just need to inform them all only once and if they want to save your contact into their phones they will do that, so as way that the next time you send them a text message, not your number will show on their phones but the name they use to save your contact into their phone. There is no need to mention who you are when u texting people you know, unless you really want to load a signature into your text mesaages.
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