why is my messagas sending through my email when i txt people but i didn’t t change my number

Hi bmholden27,

Re: why r my text messages coming through as my email address?

iMessage works both with wifi, and by paid service with your phone provider.

Texts you send and receive using iMessage don’t count against your SMS/MMS allowances in your cellular messaging plan.

If Wi-Fi is unavailable, iMessages will be sent over cellular data. Then cellular data rates may apply.

An iPhone generally works according to how it is set up.

See the Apple Support article below.

About iMessage and SMS/MMS on iPhone:

What is the difference between iMessage and SMS/MMS? – Apple Support

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Re: and how do i change that ?

Ensure Messages app Settings are set up in the way you want.

To turn iMessage on or off, go to Settings > Messages.

If you're not using iMessage, you can use SMS/MMS.

And

Check that your phone number is available for use in Messages app.

Add or remove your phone number in Messages or FaceTime - Apple Support

More info:

Apple Messages Support:

How to learn more about Messages

Messages for iPhone, iPad, Apple Watch, and Mac - Official Apple Support

All the best :-)