English | Español

Featured products at Metro by T-Mobile 300 E Diamond Ave

Shop all products
Metro by T-Mobile 300 E Diamond Ave - 300 E Diamond Ave

In-store services at Metro by T-Mobile 300 E Diamond Ave

Shop this Metro by T-Mobile store to find your next device or prepaid phone plan. We have the largest selection of free 5g phones in wireless, along with great deals on iPhones and Samsung devices. Visit this location in Gaithersburg, MD to switch or get help with your prepaid service.

Additional information about Metro by T-Mobile 300 E Diamond Ave

IDs Accepted
  • US State issued drivers license
  • US Passport or Permanent Resident Card (Green Card)
  • State ID
  • International student visa with passport (Visa types: M, J, F)
  • Matricula Consular card (Mexico and most Latin American countries, check with your store mobile expert)
  • Employment Authorization Document (EAD)
  • US Military ID

Featured reviews at Metro by T-Mobile 300 E Diamond Ave

Alba Cortez
July 26, 2026, 8:22 p.m.
(Translated by Google) This is more than just a good rating; it's a heartfelt congratulations to this store. I've been a customer here for years, and I've never received service like today. Thank you, Andrea, for your attention, patience, and dedication to doing an excellent job. I wish all Metro stores were like this. Congratulations to your team for having you with them. God bless you. (Original) Esto más que una buena calificación es una felicitaciones para esta tienda hace años soy cliente aquí y nunca había tenido una atención como la de día de hoy gracias Andrea por tu atención paciencia y querer hacer un excelente trabajo ojalá así fueran todos las tiendas de metro felicidades a tu equipo por tenerte con ellos Dios te bendiga View on Google
Boost Mobile
July 13, 2026, 3:44 p.m.
(Translated by Google) Good morning, I wasn't a member of this company before; I just came in to ask what I needed to switch. The service was truly excellent. I asked the young woman if she was the manager, and she said no. I congratulated her because her work is masterful. She has a helpful attitude, even though she didn't have a phone. Thank you, Andrea, thank you, and God bless you. (Original) Buen dia no pertenecía a esta compañía solo entre a preguntar que necesitaba para cambiarme y la atención es excelente de verdad le dije a la muchacha que si ella era la manager me dijo no y le dije que felicitaciones porque su trabajo es magistral tiene una actitud de querer ayudar a pesar de que no tenía un teléfono gracias Andrea gracias dios te bendiga View on Google
Merary Castellon
June 13, 2026, 7:44 p.m.
(Translated by Google) Today I went in just to ask a question and ended up receiving excellent service and a tablet. Thank you so much, the young woman was very kind. Thank you. (Original) Hoy fui solo hacer una pregunta y termine llevándome una buena atención y una tableta muchas gracias muy amable la muchacha gracias View on Google
Thomas Kozlowski
June 12, 2026, 11:17 p.m.
I just want to thank Andrea for everything she did for my phone and myself. She was very pleasant in her communication with regards to my issues. It's nice to see customer service as cheerful as Andrea!! You guys are truly grateful to have her on your team!! View on Google
Oscar Delfin Oliganga
June 1, 2026, 8:10 p.m.
(Translated by Google) Excellent service! Thank you, Miss Andrea! Excellent! (Original) Excelente servicios Thank you Miss Andrea! Excelent ***** View on Google

Locations near Metro by T-Mobile 300 E Diamond Ave

Authorized Retailer
Metro by T-Mobile 210 N Frederick Ave
0.5 miles away
Authorized Retailer
Metro by T-Mobile 8035 Snouffer School Rd
2.1 miles away
4.5
Authorized Retailer
Metro by T-Mobile 9989 Stedwick Rd
2.1 miles away

Got Questions about Metro by T-Mobile Stores?

Metro by T-Mobile has multiple ways to make your payment, including: 

  • In-store 
  • Online by visiting https://www.metrobyt-mobile.com/guestpay/landing
  • Using the MyMetro app 
  • Calling Customer Service at 1-888-863-8768 or 611 from your mobile phone  
  • Set up AutoPay in-store, via the MyMetro app, or by calling Customer Service 

If your phone is unlocked from the previous provider, you can check the device compatibility at Metro by T-Mobile's compatibility checker.

Head to a store or call Customer Care at 888-863-8768 to see your upgrade options or check out the newest Metro Flex options. 

Yes. If your phone is eSIM capable, we can get you set up in-store or online through metrobyt-mobile.com/resources/bring-your-own-phone.

Check out our latest deals at https://www.metrobyt-mobile.com/deals.

Please check with your local Metro by T-Mobile store or view our online inventory.

You can trade in your old phone when you buy a new one at any Metro by T-Mobile store.  For more information on trade-ins check out our website.

Sure! Visit a Metro by T-Mobile store to talk to one of our experts or call customer care at 1-888-863-8768.

You can find accessories for your phone at your local Metro by T-Mobile store.

Prime is included with our Metro Flex Plus plans. Check out the details on metrobyt-mobile.com/benefits/amazon-prime.