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[Home](https://www.t-mobile.com/business) 2. [Solutions](https://www.t-mobile.com/business/solutions) 3. [IOT](https://www.t-mobile.com/business/solutions/iot) 4. Nb IOT Coverage Map # Check Narrowband (NB) IoT Coverage Enter your address or zip code, or use the location icon, to see a detailed coverage map of your area. Delete the previous search text [](https://www.mapbox.com/) Map and service info ## Map Legend NB-IoT No coverage ## Map legend NB-IoT NarrowBand-Internet of Things (NB-IoT) is a standards-based low-power wide-area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT can significantly improve the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage. Battery life of more than 10 years can be supported for a wide range of use cases. No coverage We are constantly working to improve our network, but some areas may have no coverage due to inaccessible landscapes, physical barriers, or places where our towers signal cannot reach. However, most NB-IoT devices are compatible with 4G LTE, please see our [domestic coverage map](http://www.t-mobile.com/business/5g/5g-coverage-map). ##### Map and service info Enter a location or click on the map to check coverage information. A capable device and qualifying service are required for a network connection. Not all devices & signals are compatible; check your device specs. __Map Information:__ Map approximates anticipated coverage outdoors (including 600 Mhz) based on a variety of factors, which may include limited or no coverage areas, and does not guarantee service availability; some data-intensive uses may have decreased functionality in low-bandwidth areas, especially indoors or on the exterior edges of the approximated coverage area. Within coverage areas, network changes, traffic volume, outages, technical limitations, signal strength, your equipment, obstructions, weather, and other conditions may interfere with service quality and availability. Some coverage not depicted. __Roaming/Partner:__ Some services within coverage areas may be provided by roaming partners. Any service while roaming may be limited or unavailable and certain devices and features may not be compatible with these networks. We are not responsible for the performance of our service partner's networks. ## IoT Coverage. Learn more about additional IoT coverage by clicking on the CAT-M loT coverage map. [View CAT-M map](https://www.t-mobile.com/business/solutions/iot/cat-m-iot-coverage-map) ### Helping developers of all sizes succeed through the capabilities of NB-IoT. Learn about the network, tools, platforms, and more we offer to support your IoT ambitions. [Learn more](https://www.t-mobile.com/business/solutions/iot)  ## Helping developers of all sizes succeed through the capabilities of NB-IoT. ### Certify your IoT device today. Let us help find the right certified module, chipset, or device for your IoT needs. [Get certified](https://www.t-mobile.com/business/solutions/iot/device-certification)  ## Certify your IoT device today. ## Got questions? - ### What is Narrowband (NB) IoT? NB-IoT is basic, low-power, wide area (LPWA) technology focused on very small, infrequent data exchanges, has very long battery life and low cost. NB-IoT is ideal for fixed use cases like Smart Meters, Industrial Sensors, and Environmental sensors. - ### What is Cat-M / Cat-1? Cat-M / Cat-1, sometimes known as LTE-M (LTE for Machines) is enhanced low power, wide-area (LPWA) technology supporting higher bandwidth, devices in motion, over-the-air updates, and voice functionality. Cat-M/Cat-1/LTE-Mis ideal for uses cases like wearables, facilities & consumable monitoring, and fleet & asset tracking. - ### What factors affect coverage? Outside factors such as terrain, building structures, weather, and other conditions may interfere with actual service performance and availability. ## Let’s talk. 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