Best AT&T Phone SIM Cards of 2026

Get affordable phone plans with Tello Mobile SIM Card Kit. The kit includes a universal SIM card compatible with unlocked GSM devices, which can activate the Tello network with 4G LTE/5G US coverage. All plans come with free hotspot and international calls to 60+ countries.

The Tracfone Prepaid SIM Kit lets you use your own compatible phone on the Tracfone network, giving you the freedom to keep your current device. It includes a versatile SIM card that works with GSM and CDMA LTE networks and fits nano, micro, and standard SIM slots, so you don’t have to worry about compatibility. Inside the kit, you’ll find a prepaid SIM card that activates easily—just insert it into your phone and follow simple steps to get started. The included activation instructions make setting up your phone straightforward and hassle-free, so you can enjoy service quickly.

Get a reliable and safe cellular data service with EIOTCLUB Prepaid 4G LTE Cellular SIM Card. It provides 300MB data for 30 days without any cost or contract. Just insert the SIM card to your IoT device and it will work through AT&T and T-Mobile networks in the USA. This data-only SIM card is compatible with a wide range of devices, including mobiles, tablets, PCs, pet trackers, security and hunting trail game cameras, GPS devices, and more. The SIM kit is pre-cut in 3 sizes to fit any device. Online support is available for customer convenience.

The Boost Mobile Unlimited SIM offers a simple way to get reliable nationwide coverage, perfect for your 4G or newer US phone made after 2022. This SIM kit comes with three sizes and supports eSIM on some devices, making activation easy no matter your phone type. With this plan, you get unlimited talk and text along with 30 GB of fast data, great for streaming and browsing without worry. Plus, you can enjoy the $25 monthly rate forever with AutoPay, ensuring no surprise fees or contracts. It’s a convenient, budget-friendly choice for staying connected.

The Tello 5GB Plan offers an affordable mobile solution for users looking to save on their phone bills. For just $14 a month, you receive 5GB of data along with unlimited calls and texts, allowing you to stay connected without worrying about overage charges. You have the flexibility to bring your existing phone or choose a new one from Tello, making it convenient to switch services. With a universal SIM card included, you can easily activate your service and start using it right away. Additionally, this plan features free hotspot capabilities and international calling to over 60 countries, adding even more value.

The Verizon Wireless 4G LTE SIM Card is a 3-in-1, single SIM card that fits any compatible Verizon phone. It can be "punched out" to fit standard, micro, and nano-sized SIM slots. The card is compatible with both prepaid and postpaid Verizon accounts, but is not compatible with MVNO's. Please note that this SIM card does not support NFC.

The US Mobile Prepaid SIM offers you a flexible way to stay connected with two SIM cards included—one for the Warp Network and another for the Dark Star Network—giving you options depending on your coverage needs. Activation is quick and simple, so you can get started right away and easily manage your lines whenever you want without hassle. You can choose affordable 5G plans starting as low as $4 per month, making it a budget-friendly option. Plus, if you need more data, the unlimited premium plan comes with up to 10 GB of international data, helping you stay connected even when traveling abroad.

The Verizon Wireless SIM Card is a versatile option for any Verizon device. It is compatible with both 5G and 4G networks, making it suitable for a wide range of devices. With the SimBros Simkey included, accessing the SIM tray of your device becomes effortless. This triple cut SIM card can be easily broken down into every size, ensuring it will fit any Verizon device. Whether you have a prepaid or postpaid Verizon account, this SIM card works seamlessly. Say goodbye to compatibility issues and enjoy the convenience of this all-in-one SIM card.

The SpeedTalk Mobile Plan offers an incredibly affordable prepaid option for just $5. With this plan, you get 100 minutes of talk, 100 texts, and 100MB of data, perfect for light users looking to save money. Enjoy easy activation without contracts or credit checks, allowing you to cancel anytime without any hassle. Plus, you can use any compatible unlocked phone, thanks to the versatile Triple Cut SIM card that fits various devices. You can also keep your existing phone number, making the transition smooth and simple.

Get unlimited talk and text with 4GB of 5G/4G LTE data each month for three (3) months on the largest 5G network in the country. The plan includes a 3-in-1 SIM card with standard, micro, and nano sizes. Enjoy mobile hotspot, Wi-Fi calling and texting, and free calls to Mexico and Canada. Mint Mobile also offers a BYOP program for your unlocked GSM device. The plan has recently been updated with increased high-speed data allotments while keeping the same low pricing.