Featured promotions at UScellular & T-Mobile Authorized Retailer S Grand Ave & 18th St

T-Mobile Network Performance

Data provided by Umlaut From April-2025 to September-2025   See coverage map
5G network score
The higher your score, the more likely you can connect to a faster, more stable network.
77
/100
AT&T
59
/100
Verizon
50
/100
5G coverage availability
More availability means having access to 5G speeds more often.
94 %
75 %
AT&T
32 %
Verizon
5G download speed
Higher speed means quicker downloads and smoother video calling.
66
Mbps
Verizon
59
Mbps
AT&T
36
Mbps
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Compare Plan Prices vs the Other Carriers at  UScellular & T-Mobile Authorized Retailer S Grand Ave & 18th St

Featured reviews at UScellular & T-Mobile Authorized Retailer S Grand Ave & 18th St

Kato Tornado
Jan. 27, 2026, 4:59 p.m.
Had a great recent experience at the Charles City, US Cellular. Jonetta was very helpful and informative. I brought in my non working phone and got an upgrade, she helped me get my new phone set up with ease. All the worries I had melted away and I walked out with a huge smile on my face! View on Google
Danielle Morris
Jan. 20, 2026, 10:08 p.m.
Jonetta did an amazing job, she was very pleasant and made sure that everything was done correctly before I left the store. I would recommend this store again and again because of her alone. View on Google
Jeremy Ledbetter
Jan. 15, 2026, 5:39 p.m.
I saw Katie Lenox in Charles City needing to transfer things from an old iPhone to a new one bought at a T-Mobile store in Mason City yesterday. She was so helpful, so knowledgable, so pleasant & a joy to deal with. I will not hesitate going back there with any potential issues! View on Google
Diane Smith
Jan. 14, 2026, 11:20 p.m.
Jonetta and Colton V were a big with transitioning to a new phone View on Google
The Rustic Corner
Jan. 9, 2026, 8:56 p.m.
Going in the store was a breeze Jonetta is the best. Please stop in to see her! View on Google

Additional information about UScellular & T-Mobile Authorized Retailer S Grand Ave & 18th St

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
UScellular & T-Mobile Authorized Retailer S Grand Ave & 18th St - 1626 S Grand Ave

T-Mobile S Grand Ave & 18th St
1626 S Grand Ave
(641) 330-6865

This location supports UScellular and T-Mobile Customers
Charles City’s 5G leader — with coverage and perks that go beyond wireless. T-Mobile delivers America’s largest, fastest, and most advanced 5G network — now backed by satellite connectivity. Visit us at T-Mobile S Grand Ave & 18th St to shop the latest phones from Apple, Samsung, and Google, and get expert help with the best deals and flexible payment options.

What You’ll Find In-Store:

  • Activate Wireless or Prepaid Service
  • Activate Home Internet Services
  • Purchase Phones, Tablets, and Accessories In-Store Only
  • Upgrade or Trade-In Your Phone
  • Small Business Plans And Services
  • Connected Products for Home, Family, and Automobile