• IoT Data SIM

    Get unlimited IoT data for walkie talkies, trackers, vending machines, POS systems, smartwatches & more

  • Connect Your Smart Devices

    VoicePing SIM cards offers a physical SIM card for IoT Devices. It provides low data usage at an affordable cost.

    Enjoy the flexibility of upgrading to our full 365-day unlimited plan at any time. Once you've tested your devices and are satisfied with the performance, following the simple instructions provided, you can ensure uninterrupted service and connectivity. Easy Upgrade Options What We Offer Unlimited IoT SIM Card – 30 Day Trial | No Contract | AT&T & T-Mobile Compatible | GPS Trackers & Smart Devices | Upgradeable to 1-Year PlanBrand: VOICEPINGSearch this pageCurrently unavailable.We don't know when or if this item will be back in stock.Brand	VOICEPINGService Provider	AT&T, T-MobileCellular Technology	4g LteProduct Dimensions	1.2"L x 0.8"WUPC	860013581367About this item 30-DAYIoT SIM – Includes 30 days of unlimited data at 128Kbps. Perfect for testing your IoT device before committing long term.READY TO UPGRADE ANYTIME – Like it? Keep it going! Upgrade to our full 365-day unlimited plan by following the instructions included in your package.AT&T + T-MOBILE COVERAGE – Automatically connects to the stronger network for maximum nationwide reliability. IoT OPTIMIZED – Ideal for GPS trackers, smart sensors, security alarms, and always-on low-bandwidth devices.

    Seamless Network Connectivity

    Automatically connects to the AT&T network for reliable nationwide coverage across supported 4G and 5G data networks.

    Our SIM card automatically connects to the strongest network between AT&T and T-Mobile, providing you with robust nationwide coverage. This ensures that your IoT devices remain connected wherever you go, minimizing downtime and maximizing reliability. Nationwide Coverage What We Offer Unlimited IoT SIM Card – 30 Day Trial | No Contract | AT&T & T-Mobile Compatible | GPS Trackers & Smart Devices | Upgradeable to 1-Year PlanBrand: VOICEPINGSearch this pageCurrently unavailable.We don't know when or if this item will be back in stock.Brand	VOICEPINGService Provider	AT&T, T-MobileCellular Technology	4g LteProduct Dimensions	1.2"L x 0.8"WUPC	860013581367About this item 30-DAYIoT SIM – Includes 30 days of unlimited data at 128Kbps. Perfect for testing your IoT device before committing long term.READY TO UPGRADE ANYTIME – Like it? Keep it going! Upgrade to our full 365-day unlimited plan by following the instructions included in your package.AT&T + T-MOBILE COVERAGE – Automatically connects to the stronger network for maximum nationwide reliability. IoT OPTIMIZED – Ideal for GPS trackers, smart sensors, security alarms, and always-on low-bandwidth devices.

    Physical or eSIM options

    Most IoT devices still need a physical sim which is what we provide. Optionally also ask for our eSIM package if you plan to use on supported devices.

    Experience 30 days of unlimited data at 128Kbps, allowing you to thoroughly test and integrate your IoT devices without long-term commitments. This trial period is perfect for assessing performance and compatibility with your GPS trackers and smart devices. Unlimited Data for 30 Days What We Offer Unlimited IoT SIM Card – 30 Day Trial | No Contract | AT&T & T-Mobile Compatible | GPS Trackers & Smart Devices | Upgradeable to 1-Year PlanBrand: VOICEPINGSearch this pageCurrently unavailable.We don't know when or if this item will be back in stock.Brand	VOICEPINGService Provider	AT&T, T-MobileCellular Technology	4g LteProduct Dimensions	1.2"L x 0.8"WUPC	860013581367About this item 30-DAYIoT SIM – Includes 30 days of unlimited data at 128Kbps. Perfect for testing your IoT device before committing long term.READY TO UPGRADE ANYTIME – Like it? Keep it going! Upgrade to our full 365-day unlimited plan by following the instructions included in your package.AT&T + T-MOBILE COVERAGE – Automatically connects to the stronger network for maximum nationwide reliability. IoT OPTIMIZED – Ideal for GPS trackers, smart sensors, security alarms, and always-on low-bandwidth devices.

    30-Day Unlimited Data Trial

    Test your IoT devices with unlimited 128 Kbps data—no contracts or hidden fees. Upgrade anytime to our 365-day plan.

    Purchase via Amazon. Note: Data routes via Hong Kong (~400ms latency); not suitable for TikTok or real-time apps.

    Experience 30 days of unlimited data at 128Kbps, allowing you to thoroughly test and integrate your IoT devices without long-term commitments. This trial period is perfect for assessing performance and compatibility with your GPS trackers and smart devices. Unlimited Data for 30 Days What We Offer Unlimited IoT SIM Card – 30 Day Trial | No Contract | AT&T & T-Mobile Compatible | GPS Trackers & Smart Devices | Upgradeable to 1-Year PlanBrand: VOICEPINGSearch this pageCurrently unavailable.We don't know when or if this item will be back in stock.Brand	VOICEPINGService Provider	AT&T, T-MobileCellular Technology	4g LteProduct Dimensions	1.2"L x 0.8"WUPC	860013581367About this item 30-DAYIoT SIM – Includes 30 days of unlimited data at 128Kbps. Perfect for testing your IoT device before committing long term.READY TO UPGRADE ANYTIME – Like it? Keep it going! Upgrade to our full 365-day unlimited plan by following the instructions included in your package.AT&T + T-MOBILE COVERAGE – Automatically connects to the stronger network for maximum nationwide reliability. IoT OPTIMIZED – Ideal for GPS trackers, smart sensors, security alarms, and always-on low-bandwidth devices.

    High Speed Data

    Need faster burst of speeds or more data for non text based IoT use cases?

    We offer a 30GB data add-on that you can use throughout the 365 days so you can get those pictures or short videos faster.

  • Flexible Pricing Plans

    No contract. No activation fees. Uses AT&T (U.S. only).

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    30-Day Unlimited

    $4.95

    30 days of unlimited data at 128 Kbps. Best for testing or short-term IoT use.

    Recommended

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    1-Year Unlimited

    $30.00

    Unlimited data at 128 Kbps for 1 year. For IoT devices, GPS trackers, sensors, low-data devices.

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    1-Year + 30GB Full Speed

    $69.00

    1 year service with 30GB full-speed data. Unlimited data at 128 Kbps after 30GB. Best for Ideal for dashcams, routers & data-heavy IoT use

  • Getting Connected with VoicePing in Minutes

    Effortless Activation for Reliable, Unlimited IoT Connectivity
    Experience 30 days of unlimited data at 128Kbps, designed for testing your IoT devices without long-term commitment. Unlimited Data for 30 Days Our IoT Solutions Unlimited IoT SIM Card – 30 Day Trial | No Contract | AT&T & T-Mobile Compatible | GPS Trackers & Smart Devices | Upgradeable to 1-Year PlanBrand: VOICEPINGSearch this pageCurrently unavailable.We don't know when or if this item will be back in stock.Brand	VOICEPINGService Provider	AT&T, T-MobileCellular Technology	4g LteProduct Dimensions	1.2"L x 0.8"WUPC	860013581367About this item 30-DAYIoT SIM – Includes 30 days of unlimited data at 128Kbps. Perfect for testing your IoT device before committing long term.READY TO UPGRADE ANYTIME – Like it? Keep it going! Upgrade to our full 365-day unlimited plan by following the instructions included in your package.AT&T + T-MOBILE COVERAGE – Automatically connects to the stronger network for maximum nationwide reliability. IoT OPTIMIZED – Ideal for GPS trackers, smart sensors, security alarms, and always-on low-bandwidth devices.

    Step 1: Need to ON Data Roaming

    Activate your IoT SIM by turning on Data Roaming—this enables seamless connection to supported networks like AT&T with no extra charges.

    Our SIM automatically connects to the best available network, ensuring reliable service with AT&T and T-Mobile. Seamless Network Connectivity Our IoT Solutions Unlimited IoT SIM Card – 30 Day Trial | No Contract | AT&T & T-Mobile Compatible | GPS Trackers & Smart Devices | Upgradeable to 1-Year PlanBrand: VOICEPINGSearch this pageCurrently unavailable.We don't know when or if this item will be back in stock.Brand	VOICEPINGService Provider	AT&T, T-MobileCellular Technology	4g LteProduct Dimensions	1.2"L x 0.8"WUPC	860013581367About this item 30-DAYIoT SIM – Includes 30 days of unlimited data at 128Kbps. Perfect for testing your IoT device before committing long term.READY TO UPGRADE ANYTIME – Like it? Keep it going! Upgrade to our full 365-day unlimited plan by following the instructions included in your package.AT&T + T-MOBILE COVERAGE – Automatically connects to the stronger network for maximum nationwide reliability. IoT OPTIMIZED – Ideal for GPS trackers, smart sensors, security alarms, and always-on low-bandwidth devices.

    Step 2: If APN not set, need to set CMlink

    Most devices auto-configure. If not, go to Settings > Mobile Network > Access Point Names, tap +, and enter: Name: cmlink APN: cmlink

    Love our service? Easily upgrade to a full 365-day unlimited plan anytime during your trial. Flexible Upgrade Options Our IoT Solutions Unlimited IoT SIM Card – 30 Day Trial | No Contract | AT&T & T-Mobile Compatible | GPS Trackers & Smart Devices | Upgradeable to 1-Year PlanBrand: VOICEPINGSearch this pageCurrently unavailable.We don't know when or if this item will be back in stock.Brand	VOICEPINGService Provider	AT&T, T-MobileCellular Technology	4g LteProduct Dimensions	1.2"L x 0.8"WUPC	860013581367About this item 30-DAYIoT SIM – Includes 30 days of unlimited data at 128Kbps. Perfect for testing your IoT device before committing long term.READY TO UPGRADE ANYTIME – Like it? Keep it going! Upgrade to our full 365-day unlimited plan by following the instructions included in your package.AT&T + T-MOBILE COVERAGE – Automatically connects to the stronger network for maximum nationwide reliability. IoT OPTIMIZED – Ideal for GPS trackers, smart sensors, security alarms, and always-on low-bandwidth devices.

    Step 3: Choose Your Network

    Choose AT&T network for best connectivity.

  • Choose the Right Data SIM for Your Device

    Effortless connectivity for your smart devices — perfect for personal or business use!
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    IoT 128kbps

    Low-data use for trackers, smartwatches, sensors like GPS devices, children's smartwatches

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    Full Speed Data 30GB

    High-speed data for video devices like CCTV, dashcams, video surveillance

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    ESIM

    Smartphones and tablets with occasional Mobile Data usage

  • Support & FAQs

    Reliable answers. Real support. Anytime you need it.

  • Not sure which SIM is right for your device?

    Let us help you find the perfect match for your setup.

  • Support Help

    Option 1: Check the Sim Card Itself If you still have the SIM card inserted in your device or stored somewhere Remove the SIM card from your device.Look Closely, Your ICCID is usually printed in very small text directly on the SIMIt typically starts with 89, followed by several digits Option...
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    Terms of Service Policies that apply to your account and use of this website. These Terms of Service are a contract between you and SWT International Pte Ltd (referred to in these Terms of Service as “SWT”, “us”, “we” or “our”), the provider of the SWT International website and the services...
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