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Metro by T-Mobile 300 E Diamond Ave

★★★★★ 4.0
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Metro by T-Mobile 300 E Diamond Ave

Open - 10:00 am - 8:00 pm
4.0 ★
More details
Open

Wed: 10:00 am - 8:00 pm

Thurs: 10:00 am - 8:00 pm

Fri: 10:00 am - 8:00 pm

Sat: 10:00 am - 8:00 pm

Sun: 11:00 am - 6:00 pm

Mon: 10:00 am - 8:00 pm

Tues: 10:00 am - 8:00 pm

300 E Diamond Ave Gaithersburg, MD 20877
    • One line unlimited 5G $20

    That's 50% off
    Unlimited 5G.

    AND no activation fees.
    Get one line of unlimited 5G for $20/mo., when you prepay for 6 months. Bring your phone and shop online or in store.
    Get the details
    50% savings versus $40 Period plan. $120 upfront payment required. If you use a lot of data, more than 35GB/mo., you may notice slower speeds when our network is busy.
    MEXICO UNLIMITED INCLUDED

    Get unlimited calls & texts from the U.S. to Mexico.

    AND get the new Samsung Galaxy A17 5G for FREE.

    AND pay no activation fees. That's like $250+ in your pocket. When you join Metro on the $40 Period plan and bring your number. Visit your Metro store for details.

    Get one line of unlimited 5G for $20/mo., when you prepay for 6 months. Bring your phone and shop online or in store.

    Get directions
    $250+ based on Metro device discount and waived activation fee. Activate in store.
    Llamadas y textos a México sin límites incluidos
    Llamadas y textos a México sin límites incluidos
    MEXICO UNLIMITED INCLUDED

    Get unlimited calls & texts from the U.S. to Mexico.

    AND get the new Samsung Galaxy A17 5G for FREE.

    AND pay no activation fees. That's like $250+ in your pocket. When you join Metro on the $40 Period plan and bring your number. Visit your Metro store for details.

    Get one line of unlimited 5G for $20/mo., when you prepay for 6 months. Bring your phone and shop online or in store.

    $250+ based on Metro device discount and waived activation fee. Activate in store.

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

    iPhone 13
    Apple
    iPhone 13
    4163
    $49.99 $629.99
    Generally carried
    Galaxy A17 5G
    Samsung
    Galaxy A17 5G
    $0.00 $229.99
    Generally carried
    iPhone 16e
    Apple
    iPhone 16e
    $99.99 $599.99
    Generally carried
    Galaxy A16 5G
    Samsung
    Galaxy A16 5G
    $0.00 $189.99
    Generally carried
    moto g - 2026
    Motorola
    moto g - 2026
    $0.00 $189.99
    Generally carried
    moto g play - 2026
    Motorola
    moto g play - 2026
    $0.00 $139.99
    Generally carried
    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.

    No activation fees. Metro has your back.

    Join Metro at your local Metro store and enjoy taxes and fees included with your plan.
    Get directions
    If you use a lot of data, more than 35GB/mo., you may notice slower speeds when our network is busy. Video streams in SD.

    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

    Leave a review Google
    Oscar Ayala
    May 17, 2026, 5:09 p.m.
    (Translated by Google) Excellent service, friendliness, help, and understanding at this store! Thank you for helping me recover my number and accounts. (Original) Excelente servicio, amabilidad, ayuda y entendimiento en esta tienda! Gracias por ayudarme a recuperar mi número y cuentas View on Google
    Marina Sosa
    May 17, 2026, 4:39 p.m.
    (Translated by Google) Excellent service, thank you to the girls Rossana and Andrea for helping me, God bless you. (Original) Excelente atención gracias a las muchachas por ayudarme rossana y andrea dios las bendiga View on Google
    Teresa Jaramillo
    May 15, 2026, 8:02 p.m.
    (Translated by Google) I'm so happy with my experience at this store. I went in because of a problem with my phone, and the young woman there took the time to call me. I was there for almost two hours, and I accidentally ended up exchanging my sister's phone. She gave me an excellent price, and I was surprised by her empathy. If I remember correctly, her name is Andrea. God bless you, keep up the good work! Thank you. I hope you see this comment someday. (Original) Estoy muy feliz de la experiencia que tuve en esta tienda simplemente fui por un problema en mi teléfono y la muchacha se encargó de tomar su tiempo y llamar dure casi dos horas y sin querer cambie el teléfono de mi hermana me dió un excelente precio y me sorprendió la empatía que tuvo conmigo si más no recuerdo su nombre es Andrea dios te bendiga sigue así! Gracias espero veas algún día este comentario View on Google
    Marianela Rodriguez
    May 15, 2026, 4:23 p.m.
    (Translated by Google) I love this store, excellent service! (Original) Me encabta esta tienda excelente servicio! View on Google
    Ducks
    Oct. 4, 2025, 9:04 p.m.
    (Translated by Google) I love coming here, this store is super good, great promotions, free tablets, just pay $15 monthly, super deals. (Original) Me encanta venir aquí súper esta tienda muy buenas promociones tabletas gratis solo pagando mensual $15 dólares súper ofertas 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
    5.0
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    Authorized Retailer
    Metro by T-Mobile 701 Russell Ave
    0.9 miles away
    5.0
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    Authorized Retailer
    Metro by T-Mobile 8035 Snouffer School Rd
    2.1 miles away
    4.5
    View

    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.