AT&T vs Ultra Mobile: Which carrier is best?
We compared AT&T & Ultra Mobile plans, coverage & customer ratings: Which cell phone service is best for you?




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Looking to switch carrier but not sure if Ultra Mobile or AT&T is better?
Within this guide, you'll be able to compare Ultra Mobile and AT&T coverage, features, plans and prices side-by-side, so you can decide for yourself which carrier offers the best deal.
AT&T vs Ultra Mobile: Coverage & Plan Comparison 2023
Ultra Mobile vs AT&T plans
Ultra Mobile 3GB


- T-Mobile 5G & 4G LTE networks Ultra Mobile operates on the T-Mobile 5G & 4G LTE networks. This allows you to receive the same wireless coverage but at a fraction of the cost.
- Unlimited talk and text
- 3GB data
- $699 in annual savings Savings are calculated comparing the cost of the Ultra Mobile 3GB vs an unlimited data plan from T-Mobile, AT&T or Verizon over the first 12 months.
$10/mo*
$19/mo* Only $30 for 3 Months Service
Ultra Mobile phone plans offer low-cost access to the T-Mobile network. Offering a range of data allowances from 2GB up to 40GB of high-speed data on their unlimited plan, there's something to suit light and heavy data users.
There are no contracts, and if you've got loved ones abroad, they offer free international calls to 80 countries.
Pros
- T-Mobile 5G & 4G LTE wireless coverage
- Free international calls to 80 countries
- Mobile hotspot access included
- eSIM compatible
Cons
- Extra cost for International roaming
- Ultra Mobile offers a variety of options for affordable cell phone plans with good coverage on the T-Mobile network.
- You'll get free international calls to 90+ countries, and cheap family plans with multi-line discounts are available.
- Mobile hotspot access is available with a limit of 10GB on unlimited plans.
- While the plan doesn't include international data roaming, you have the option to purchase the UpRoam add-on, which allows you to access roaming services at a discounted rate by adding credit.
Compare AT&T unlimited plans
Plan | Data | Monthly Price | Annual Cost |
---|---|---|---|
AT&T Unlimited Starter | Unlimited | $65 | $780 |
AT&T Unlimited Extra | Unlimited | $75 | $900 |
AT&T Unlimited Premium | Unlimited | $85 | $1,020 |
AT&T vs Ultra Mobile comparison
Keep your AT&T phone, number & coverage: Save $322 per year
Carrier | Network Coverage | 4G/5G Data | Price | Annual Cost |
---|---|---|---|---|
AT&T | AT&T 4G & 5G | Unlimited | $75/mo | $900/yr |
Ultra Mobile | AT&T 4G & 5G | Unlimited | $49/mo | $578/yr |
Savings | $26/mo | $322/yr |
Ultra Mobile vs AT&T coverage
Ultra Mobile is powered by T-Mobile. Coverage can vary depending on your location. You can check their availability in your area by using our coverage checker.
Ultra Mobile coverage
Ultra Mobile is powered by T-Mobile 5G & 4G LTE wireless networks.
View Ultra Mobile coverage map
AT&T coverage
Find the cheapest cell phone service in your area
Enter your ZIP code below to find the best cell phone service in your area.
Ultra Mobile vs AT&T plan features
Carrier Features | Ultra Mobile | AT&T |
---|---|---|
Networks | T-Mobile | AT&T |
Data Speed | 5G & 4G LTE | 5G & 4G LTE |
3G Network | GSM | GSM |
Mobile Hotspot | ||
Bring Your Phone | ||
Keep Your Number | ||
Contract | No - prepaid | No - Postpaid |
Credit Check | ||
Customer Service | 24/7 | |
Money Back Guarantee | Yes - 10 day | |
5G | 0 | |
Taxes/fees included | ||
VoLTE | ||
WiFi Calling | ||
Visual Voicemail | ||
Multi-line Discounts | ||
Multi-month Discounts | ||
International Calls | Yes - Includes 80 countries | |
International Roaming |
Ultra Mobile vs AT&T customer service
Ultra Mobile customer service
Contact Ultra Mobile customer care
Call (888) 777-0446
Tag @ultra_mobile on Twitter
AT&T customer service
Contact AT&T customer care
Call (800) 331-0500
Tag @att on Twitter
AT&T vs AT&T FAQs
AT&T is an MVNO with T-Mobile 5G & 4G wireless coverage, they offer cell phone plans starting at $10/mo. While AT&T's phone plans start at $65/mo.
AT&T is powered by the T-Mobile network, they offer much cheaper cell phone service than AT&T. However, because AT&T is an MVNO, data speeds may be slowed during peak times.
Most recent AT&T phones should work with AT&T as long as the device is unlocked. Before signing up, you can check your device's compatibility on the AT&T website.
No. AT&T operates on the T-Mobile 5G & 4G LTE wireless networks.
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