IPhone 7 texting issues?

I have an iPhone 7. When I text a certain persons phone number and they reply I get there reply from "phonenumber@messenger.sprintpcs.com" how do I stop that/fix the issue?

How can people tell your location from your iphone? - 1

I'm from the US and will be travelling to the UK in 2 weeks for work. My mom has an anxiety disorder, so her therapist recommended that I not tell her to prevent potential panic attacks. We communicate via text, phone calls and whatsapp. A couple questions for you folks:

1. If she were to call me, or I were to call her using my regular AT&T iphone while I were in the UK would there be any indication that I was out of the US?

2. Would there be any indication on whatsapp that I'm out of the country?

3. Is there anything on my iphone features that may give it away?

Thanks everyone for your time. This is a sensitive situation, but in the end, for her mental health (she has severe panic attacks when things are outside of routine) this is the only way to go.

How can people tell your location from your iphone?

I'm from the US and will be travelling to the UK in 2 weeks for work. My mom has an anxiety disorder, so her therapist recommended that I not tell her to prevent potential panic attacks. We communicate via text, phone calls and whatsapp. A couple questions for you folks:

1. If she were to call me, or I were to call her using my regular AT&T iphone while I were in the UK would there be any indication that I was out of the US?

2. Would there be any indication on whatsapp that I'm out of the country?

3. Is there anything on my iphone features that may give it away?

Thanks everyone for your time. This is a sensitive situation, but in the end, for her mental health (she has severe panic attacks when things are outside of routine) this is the only way to go.

I want to get a phone! Do you think my parents will give me one?

Ok so I was on a walk with my family and my brother and my dad were getting me really mad. I decided to walk home and my mom called at me and said, "Don't let them ruin your night come walk with me". I then told her that I wasn't going to walk with those two losers, talking about my brother and my dad. (I wish I could go back and not say it UGH!) Anyways, my dad yells at me and says you were going to get an iPhone on the day of the national junior honor society ceremony(because I got excepted). I went home and started crying because all my friends have phones and I really wanted one. My mom then said when she got home stop crying don't you think if we thought about we're gonna think about it again. UGH! Some of my friends think that they will just give it to me anyways, but I really wanna know. I wanna get an iPhone! Someone help me!