What AT&T offers and who it serves

AT&T is one of the three largest wireless carriers in the United States. It operates its own network infrastructure and sells phone plans directly to consumers through retail stores, online, and by phone. AT&T also sells plans through resellers and prepaid brands it owns, like Cricket Wireless and Prepaid.

AT&T serves roughly 120 million wireless customers across the country. The company offers postpaid plans (where you pay a monthly bill), prepaid plans (where you pay upfront), and business plans. Most consumers encounter AT&T either by switching to it from another carrier or by staying with it after buying a phone from one of its stores.

Understanding how AT&T's plans work, what they cost, and what happens if you break a contract will help you decide whether it fits your needs and budget.

Key Takeaways

  • AT&T postpaid plans charge a monthly fee and may include a device payment plan, while prepaid plans require you to pay before service starts each month.
  • Most AT&T postpaid plans include unlimited talk and text, but data speeds and amounts vary by plan tier and whether you pay extra for premium data.
  • AT&T charges an early termination fee if you cancel a postpaid plan before the contract ends, though many newer plans use device payment agreements instead of traditional contracts.
  • AT&T's coverage depends on its network infrastructure in your area; you can check coverage on AT&T's website by entering your address.
  • If you bring your own phone to AT&T, you must verify it is compatible with AT&T's network bands before signing up.

Postpaid plans: monthly billing with device options

AT&T postpaid plans charge you a monthly bill, usually due on the same date each month. Most postpaid plans include unlimited talk and text to the United States, Canada, and Mexico. The main difference between plan tiers is the amount and speed of data you receive each month.

When you buy a phone from AT&T on a postpaid plan, you typically pay for the phone through a device payment agreement. This means AT&T finances the phone cost and adds a monthly payment (usually $15 to $40) to your bill for 24 or 36 months. You own the phone once you finish paying, but AT&T can lock it to their network until the device payment is complete. If you cancel service before the device payment ends, you still owe the remaining balance.

AT&T postpaid plans also include a line access fee (the base monthly cost for one phone number) plus taxes and fees. Prices vary by plan and region. You can view current plan pricing on AT&T's website or in a store, since rates change and vary by location.

Prepaid plans: pay before you use service

AT&T prepaid plans work differently from postpaid. You pay a set amount upfront, and that money covers your service for a set period—usually 30 days. Once the 30 days end, your service stops until you pay again. There is no monthly bill, no contract, and no device payment agreement.

AT&T prepaid plans come in different data tiers, similar to postpaid. You can buy a prepaid plan online, in an AT&T store, or through retailers like Walmart and Target. If you bring your own phone, you can set up it on a prepaid plan when ready. If you buy a phone from AT&T on prepaid, you pay the full price upfront—there is no payment plan option.

Prepaid plans do not include a contract, so you can stop service at any time without a penalty. This makes prepaid useful if you are unsure about committing to AT&T long-term or if you want to test coverage in your area before switching permanently.

Data speeds, throttling, and network priority

AT&T postpaid plans come with different data speeds depending on the plan you choose. Standard plans may include 4G LTE speeds, while premium plans may include access to 5G where available. The speed you actually experience depends on network congestion in your area and which plan tier you are on.

AT&T also uses a practice called "network management" or throttling. If the network is very congested, AT&T may slow down data for customers who have used a large amount of data in a billing cycle, even if they have data remaining. This is more common on lower-tier plans. Premium plans may have higher thresholds before throttling occurs.

Some AT&T plans include "prioritized data," which means your data is prioritized over other customers' data during network congestion. This costs extra but can mean faster speeds during peak hours. Check your plan details to see whether you have this feature.

Early termination fees and contract terms

AT&T postpaid plans may include an early termination fee (ETF) if you cancel before the contract or agreement period ends. The fee amount depends on how much of your contract remains and whether you are in the middle of a device payment agreement. Typical ETFs range from $100 to $350, but the exact amount varies.

Newer AT&T postpaid plans often use device payment agreements instead of traditional service contracts. This means there is no separate contract for service itself—only for the phone. If you cancel service, you can keep paying the device payment, or you can pay off the remaining balance in full and leave. Some plans do still include service contracts, so check your paperwork or ask in the store before signing up.

Prepaid plans have no contract and no early termination fee. If you stop paying, your service straightforward stops.

Bringing your own phone to AT&T

If you already own a phone, you can bring it to AT&T instead of buying one from them. This is called bringing your own device (BYOD). You will need to verify that your phone is compatible with AT&T's network before you sign up.

AT&T uses specific network bands and technology standards. Your phone must support these bands to work on AT&T's network. You can check compatibility on AT&T's website by entering your phone's model number or IMEI (a unique identifier on your phone). You can also visit an AT&T store and ask a representative to check for you.

If your phone is compatible, you can set up it on either a postpaid or prepaid plan. You will not need to pay for a device, so your monthly bill will be lower than if you were financing a phone through AT&T. Your phone will not be locked to AT&T's network (or will be unlocked after you finish paying any device balance), so you can switch carriers later if you want.

Coverage and network quality in your area

AT&T's coverage depends on where you live and work. AT&T has built network infrastructure across most of the United States, but coverage varies by region. In dense urban areas, coverage is usually strong. In rural areas, coverage may be weaker or nonexistent.

You can check AT&T's coverage map on their website by entering your address. The map will show you what type of coverage (4G LTE, 5G, or no coverage) AT&T offers at that location. Keep in mind that coverage maps are estimates—actual coverage can vary based on buildings, terrain, and network congestion.

If you are switching to AT&T from another carrier, ask friends or family in your area about their experience with AT&T's network. You can also buy a prepaid plan for a month to test coverage before committing to a postpaid plan.

Switching to AT&T from another carrier

If you are moving from another wireless carrier to AT&T, you can keep your phone number through a process called porting. When you sign up for an AT&T plan, tell the representative you want to port your number. AT&T will contact your old carrier and transfer your number to AT&T. This usually takes a few hours to a few days.

During the porting process, your old carrier may charge an early termination fee if you are still under contract with them. AT&T does not pay this fee, so you will owe it to your old carrier. Some carriers offer promotions where they reimburse the ETF, but this is not AT&T's responsibility.

Before you switch, check whether you have any outstanding balances or device payments with your old carrier. These must be paid off before or after you leave—they do not transfer to AT&T.

Frequently Asked Questions

Can I use an AT&T phone on another carrier's network?

If your AT&T phone is unlocked, yes. Most AT&T phones are locked to AT&T's network while you are paying for them. Once you finish paying (or after a certain period), AT&T will unlock the phone. You can then use it on another carrier's network, as long as that carrier supports your phone's bands. Contact AT&T to request an unlock code.

What happens if I do not pay my AT&T bill?

AT&T will send you a notice that your bill is overdue. If you do not pay within a grace period (usually 15 to 30 days), AT&T will suspend your service. You will not be able to make calls, send texts, or use data. If you continue not to pay, AT&T may send your account to a collection agency and report the debt to credit bureaus, which can harm your credit score.

Does AT&T offer discounts for multiple lines or family plans?

Yes. AT&T offers family plans that let you add multiple phone lines to one account at a discounted rate per line. The more lines you add, the lower the per-line cost. AT&T also offers discounts for military members, seniors, and some employers. Ask in an AT&T store or check their website for current promotions.

What is the difference between AT&T and Cricket Wireless?

Cricket Wireless is a prepaid brand owned by AT&T. Cricket uses AT&T's network infrastructure but operates as a separate brand with its own customer service and billing. Cricket plans are typically cheaper than AT&T postpaid plans, but they may have slower data speeds or less customer support. Cricket is a good option if you want AT&T's network coverage at a lower price.

Can I pause my AT&T service instead of canceling?

AT&T offers a service suspension option on some postpaid plans, which lets you temporarily stop service for up to 90 days without canceling. You will not be charged during the suspension, but you will still owe any device payment balance. Contact AT&T to see if this option is available on your plan.