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- Milford
- T-Mobile at Costco
T-Mobile at Costco
- Costco Membership Required
- No In-Store Pickup
T-Mobile Network Performance
Try T-Mobile FREE
for 30 days.
Test-drive our award-winning network and some of our favorite benefits for 30 days—no commitment or credit card required. We won't even tell your other carrier.
Try T-Mobile FREE for 30 days.
Limited-time; subject to change. 5G device required to access 5G network. Data available for 30 days. Active non-T-Mobile service required; your carrier's terms also apply. You may need to upgrade your device when you switch to get full coverage. Coverage not available in some areas. Activate up to 4K UHD streaming on capable device, or video typically streams in SD. Up to 250GB high-speed then unlimited on our network at max 3G speeds. Review Network Management Policies and Terms and Conditions (including arbitration provision) at T-Mobile.com for additional information.
Featured Promotions at T-Mobile at Costco
Get iPhone 18 Pro On Us.
Get up to $200 back when you sign up for T-Mobile 5G Home Internet.
Check availability
Switch to T-Mobile, and we'll help pay off your phone—up to $800.
Get the detailsiPhone 18 Pro On Us — full terms
Qualifying plans.
- Experience Beyond 2.0 (New and existing members)
- Experience Beyond, Go5G Next (Existing members only)
If you cancel entire account before receiving all bill credits, credits stop and balance on required finance agreement is due (e.g., $1,199.99 – iPhone 18 Pro 256GB). Bill credits end if you pay off device early. Tax on pre-credit price due at sale. Limited-time; subject to change. Qualifying credit and service ($100+/mo. plan w/AutoPay, plus taxes & fees), & eligible trade-in (e.g., Save $1,200: iPhone 16; Save $930: iPhone 14; Save $500: iPhone 6) required. Trade-in terms and conditions apply. $35 device connection charge due at sale. Up to $1,200 via bill credits; line with promo must be active and in good standing to receive credits; allow 2 bill cycles. Max 4 discounted devices/account. May not be combinable with some offers, discounts, or promotions.
Sign up for T-Mobile Home Internet online or via chat to get up to $200 Virtual Prepaid Mastercard® back. Plus, our 5G Wi-Fi Gateway is included at no additional cost and shipping is FREE.
Limited-time; subject to change. Up to $200 Back: Available for digital activations ($100: Rely; $100: Amplified; $200: All-In), not available in retail. Register code within 30 days of activating a qualifying new Home Internet line. If you have cancelled Internet lines in past 90 days, you may need to reactivate them first. Up to $200 via virtual prepaid Mastercard; use online or in-store via accepted mobile payment apps; no cash access & expires in 6 months. The Virtual Prepaid Mastercard is issued by Sunrise Banks N.A., Member FDIC, pursuant to a license from Mastercard International Incorporated. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated. This card may be used everywhere Debit Mastercard is accepted. Registration, activation, acceptance, or use of this card constitutes acceptance of the terms and conditions stated in the Prepaid Card Agreement. This promotion is not associated, sponsored, or endorsed by Mastercard or Sunrise Banks N.A. Lines must be active and in good standing when card is issued. Max 1/account. May not be combined with some offers, discounts, or promotions.
Get up to $800.
Limited time offer; subject to change. Qualifying device, credit, service, and port-in (Verizon, AT&T, Spectrum, Claro, Xfinity, Liberty, or US Cellular) required. You must unlock device before port-out; ask us how. Device balance (incl. lease purchase option) up to $800 paid by virtual prepaid MasterCard (no cash access & expires in 6 months) which you can use online or in-store via accepted mobile payment apps, typically within 15 days. Tax excluded. Submit proof of balance & 90+ days in good standing with carrier & device within 30 days of port-in and be active and in good standing when processed; allow up to 15 days. Devices previously used for Keep & Switch are not eligible. We might ask for more information. Up to 4 lines. One offer per subscriber. T-Mobile Prepaid MasterCard is rebate/reimbursement or exchange on port-in; for any tax implications, consult a tax advisor. No money has been paid by you for the card. Card is issued by Sunrise Banks N.A., Member FDIC, pursuant to a license from Mastercard International Incorporated. Mastercard is a registered trademark of Mastercard International Incorporated. Use of this card constitutes acceptance of the terms and conditions stated in the Cardholder Agreement.
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
T-LIFE
Tap into exclusive benefits, shop our best deals 24/7, manage your account and devices, and more.
Download the T-Life app today.
Ready to shop now?
- Activate Wireless Service
- Activate Home Internet Services
- Upgrade or Trade-In Your Phone
- Exclusive Member Benefits
Featured reviews at T-Mobile at Costco
Locations near T-Mobile at Costco
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access_time
Wed:11:00 am - 8:00 pm
- call (203) 874-0534
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location_on
1201 Boston Post Road
#2430
Milford, CT 06460
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access_time
Wed:10:00 am - 8:00 pm
- call (203) 993-8276
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265 E Main St
Bridgeport, CT 06608
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access_time
Wed:10:00 am - 8:00 pm
- call (203) 230-8542
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2100 Dixwell Ave
Ste 103
Hamden, CT 06514
Got Questions about T-Mobile Stores?
Yes. Check out our special offers for new phones and great deals on our mobile phone plans.
We offer the latest iPhones. Check our store inventory and either buy in-store or online today.
Yes. Trade in your phone at a T-Mobile store and receive instant appraisal and credit. See our trade-in guide for details.
Yes, visit our T-Mobile store at T-Mobile at Costco for assistance with setting up your device.
Browse devices and plans online, contact us for assistance, or visit this T-Mobile location at T-Mobile at Costco for personalized help.
Yes. Some plans include subscriptions to services like Netflix or Apple TV+. Check our plans for available perks and add-ons.
Use our Store Locator to find the nearest T-Mobile store.
T-Mobile stores offer a wide range of accessories compatible with your device, including cases, chargers, and headphones.
No, you can pay your bill online through our website or the T-Mobile app.
Only compatible devices can use T-Mobile's 5G network. All new phones are 5G ready.