
AT&T offers a range of wireless plans with different data usage options. Some plans include a set amount of data that can be shared with other devices, while others provide data that is limited to a specific line or device. The company may slow down data speeds during network congestion or after a certain amount of data has been used, such as 50GB or 22GB in a single billing period. The Unlimited Extra EL plan, for example, offers 75GB of high-speed data before throttling occurs during network congestion. AT&T's service capability speeds are limited to and measured between the user's location and a point on their network, which may affect the performance of certain applications, particularly those requiring real-time, high-bandwidth usage like 4K video streaming or video conferencing.
Characteristics and Values of High-Speed Data Usage from AT&T
| Characteristics | Values |
|---|---|
| Data Usage Limit | 75GB |
| Data Speed Slowed After Usage | 50GB or 22GB in a single bill period |
| Data Speed Slowed After Usage Percentage | 37.5GB or 16.5GB (75% of 50GB or 22GB) |
| Data Transmission Rate Limit | 3.0 Mbps |
| Max Speed for Streaming Video | 2 Mbps for 5G-enabled devices and rate plans |
| Max Speed for Non-5G Compatible Devices | 1.5 Mbps |
| Monthly Mobile Hotspot/Tethering Allotment | Varies per plan |
| Data Transmission Rate After Allotment | 128 Kbps |
| Congestion-Based Network Management | Always on for Standard plan; triggered after 250GB of wireless data usage in a bill cycle for Premium plan |
| Video Management Feature | Standard definition streaming with a max speed of 2 Mbps for 5G-enabled devices and 1.5 Mbps for non-5G compatible devices |
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What You'll Learn
- Unlimited plans may be slowed at any time if the network is busy
- Unlimited plans may be slowed after 50GB or 22GB of data usage
- The Starter SL plan may be throttled if the network is busy
- The Unlimited Extra EL plan provides 75GB of high-speed data
- Service capability speed may not support streaming 4K video or video conferencing

Unlimited plans may be slowed at any time if the network is busy
When it comes to AT&T's wireless plans, there are different options available, including those with a set amount of data to share with other devices and those with data allocated for a specific line or device. The performance of these plans can be affected by various factors, such as network congestion, which occurs when multiple devices use mobile data simultaneously.
In the context of high-speed data usage, AT&T's unlimited plans may experience temporary speed reductions during network congestion. This means that if the network is busy, the company may slow down the data speed for unlimited plans to ensure that all users remain connected. Such slowdowns are not unique to AT&T and are a common practice among wireless carriers.
The specific terms of AT&T's unlimited plans vary. For example, the Starter SL plan offers unlimited talk, text, and data but may be throttled during network congestion, resulting in lower data speeds. On the other hand, the Unlimited Extra EL plan provides 75GB of high-speed data before throttling occurs. These plans also differ in their priority levels, with Starter SL considered lower priority and Unlimited Extra EL offering higher priority for the first 75GB.
It's important to note that AT&T's network management practices aim to balance data speeds and network congestion. They may slow down speeds after a certain data threshold, such as 50GB or 22GB in a billing period. Customers are notified when they reach 75% of these thresholds. Additionally, AT&T's broadband plans, like the retired Unlimited Choice plan, may have data transmission rate limits, affecting streaming video quality.
While AT&T's unlimited plans may experience slower speeds during network congestion, the company strives to maintain a balance between providing high-speed data and ensuring a stable connection for all users. Customers can refer to their specific plan details to understand when and how their data speeds may be affected by network congestion or data usage thresholds.
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Unlimited plans may be slowed after 50GB or 22GB of data usage
AT&T offers a range of wireless plans, including unlimited data plans. While these plans provide customers with the flexibility to use as much data as they need, there are certain conditions under which their data speeds may be temporarily slowed.
One such condition is related to high data usage. According to AT&T's data usage policies, unlimited plans may be subject to slower speeds after a certain threshold of data consumption. Specifically, if a customer uses more than 50GB or 22GB of data in a single billing period, their data speed may be reduced. This threshold varies depending on the specific unlimited plan the customer has.
It's important to note that this slowdown only occurs during times of network congestion. When the network is busy, AT&T may temporarily slow down the data speed of unlimited plan customers who have exceeded the specified data usage threshold. This is done to ensure that more people can remain connected and maintain their access to the network.
To help customers manage their data usage and avoid potential slowdowns, AT&T provides text message notifications. Customers on unlimited plans will receive a text when they reach 75% of the data threshold, which is 37.5GB for the 50GB plan and 16.5GB for the 22GB plan. This notification is designed to give customers enough time to adjust their data usage and prevent any significant impact on their speeds.
Additionally, it's worth mentioning that AT&T's network management practices also include congestion-based management for their Premium plan. Unlike the Standard plan, where congestion-based management is always on, the Premium plan triggers this feature after 250GB of wireless data usage in a billing cycle. This further highlights AT&T's approach to managing network traffic and ensuring a balanced data experience for all its customers.
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The Starter SL plan may be throttled if the network is busy
The Starter SL plan from AT&T offers "unlimited talk, text, and data" but may be throttled if the network is congested or busy. This means that, while the plan provides an unlimited data allowance, the speed at which data is transmitted may be reduced under certain conditions to maintain network performance for all users.
Network congestion occurs when many devices are using mobile data simultaneously, straining the network infrastructure. In such cases, AT&T may temporarily slow down data speeds to ensure all users remain connected. This practice is known as "network congestion-based management" and is implemented to maintain a consistent level of service for all customers during peak usage periods.
The Starter SL plan is considered "deprioritized," meaning it may be subject to throttling more frequently than other plans with higher priority levels. Throttling refers to the intentional slowing of internet speeds by an internet service provider (ISP). In the context of the Starter SL plan, throttling can occur regardless of the amount of data used, and speeds may be reduced even if the user has not exceeded their data allotment.
It's important to note that the Starter SL plan is not the only one subject to potential throttling. Other AT&T plans, such as the Unlimited Extra EL plan, may also experience throttling after a certain threshold of data usage. For example, the Unlimited Extra EL plan offers 75GB of high-speed data, after which the user may be throttled if the network is busy.
While the Starter SL plan may be more susceptible to throttling due to its lower priority level, AT&T does provide full access to all types of 5G networks across their plans. This means that, even with potential speed reductions, users on the Starter SL plan can still utilise the latest 5G technology, albeit at potentially slower speeds during network congestion.
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The Unlimited Extra EL plan provides 75GB of high-speed data
The Unlimited Extra EL plan from AT&T provides 75GB of high-speed data. This means that the first 75GB of data used will be at a higher priority than data used on the Starter SL plan, which is always deprioritized. After the 75GB of high-speed data has been used, data speeds may be slowed, particularly if the network is busy or congested.
Network congestion occurs when many devices are using mobile data simultaneously, which can strain the network. In this case, AT&T may slow down data speeds for some users to maintain connectivity for everyone. Additionally, on unlimited plans, AT&T may temporarily slow down data speeds at any time if the network is busy, or after a certain amount of data has been used in a single bill period. For example, speeds may be slowed after 50GB or 22GB of data usage, and users will receive a text notification when they reach 75% of these thresholds.
The high-speed data provided by the Unlimited Extra EL plan ensures that users can utilize data-intensive applications without sacrificing speed. Activities such as transferring large data files or streaming 4K video require higher-speed services to function optimally. By providing 75GB of high-speed data, the Unlimited Extra EL plan offers a buffer before data speeds may be reduced, allowing users to engage in these activities without immediate concern for network congestion or data speed limitations.
It's important to note that the speed of data transmission on the AT&T network can vary depending on various factors. These factors include the type of device and rate plan, with 5G-enabled devices and rate plans offering faster speeds than non-5G alternatives. Additionally, certain plans, like the retired AT&T Unlimited Choice plan, impose data transmission rate limits, which can impact the overall speed of data usage.
The Unlimited Extra EL plan's provision of 75GB of high-speed data showcases AT&T's commitment to offering plans that cater to customers' diverse needs. By providing a substantial amount of high-speed data, the plan ensures that users can engage in data-intensive activities without immediate speed restrictions. However, it's essential to monitor data usage and be aware of potential speed adjustments, especially during network congestion or after exceeding the high-speed data threshold.
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Service capability speed may not support streaming 4K video or video conferencing
When considering streaming 4K video or video conferencing, it's important to note that the speed and performance of your internet service can significantly impact the quality and reliability of your experience. While AT&T offers a range of internet plans with different speeds, not all of them may support high-bandwidth activities like 4K streaming or seamless video conferencing.
4K video streaming and video conferencing are activities that require a significant amount of data and consistent bandwidth to function optimally. 4K video, also known as Ultra HD, offers a higher resolution and sharper image quality compared to standard HD. As a result, it demands a higher data transfer rate to deliver that enhanced visual experience. Similarly, video conferencing can be demanding due to the real-time exchange of audio and video data between multiple participants.
The speed of your internet connection plays a critical role in these activities. Insufficient speeds or inconsistent performance can lead to issues such as buffering, lag, or pixelated video quality. Buffering occurs when your internet speed can't keep up with the data demands of the video, causing the video to pause and load temporarily. Lag refers to delays in the audio or video transmission during video conferencing, resulting in a disjointed and frustrating experience for participants.
To ensure smooth 4K video streaming and reliable video conferencing, it's recommended to have higher internet speeds that can accommodate the data requirements. For 4K streaming, a minimum speed of 25 Mbps is generally considered necessary, but higher speeds are preferable for the best experience. As for video conferencing, the speed requirements can vary depending on the number of participants and the desired video quality. While basic video calls might require lower speeds, HD video conferencing with multiple participants benefits from speeds of at least 10 Mbps or higher for optimal performance.
If your AT&T internet plan provides speeds that meet or exceed these recommendations, you're more likely to enjoy seamless 4K streaming and reliable video conferencing experiences. However, if your plan falls short of these speed thresholds, you may encounter performance issues. Upgrading to a higher-speed plan or exploring alternative internet service providers in your area can be worth considering to enhance your online activities.
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Frequently asked questions
High-speed data refers to the speed at which data is transmitted, typically measured in kilobits, megabits, or gigabits per second. Higher speeds facilitate faster data transfers and support high-bandwidth activities such as streaming 4K video or video conferencing.
AT&T's definition of high-speed data usage varies depending on the specific plan. Some plans offer a set amount of data to share with other devices, while others provide data exclusively for a specific line or device. The Unlimited Extra EL plan, for instance, offers 75GB of high-speed data before throttling during network congestion.
Several factors can impact your high-speed data performance, including network congestion, the number of connected devices, and your chosen plan's data limits. Additionally, AT&T may temporarily slow down your speed if you exceed certain data thresholds, such as 50GB or 22GB in a single billing period.
To check your data usage on AT&T, sign in to your account and view the data usage graph. You can also call *3282# (*DATA#) from your AT&T wireless phone to access usage information.
























