IoT SIM Card

Secure global connectivity for IoT and M2M devices—simplified. Telnyx IoT SIM offers flexible, seamless data coverage in 180+ countries on 650+ networks, with a portal and APIs to manage SIMs over the air.

Telnyx IoT SIM Card
COSMO logo
Customer Logo Philips
Customer Logo Colectivo
Customer Logo Valor Paytech
Use eSIM to deploy your IoT devices or to provide connectivity to your personal mobile handset.

Bring smart devices online, from anywhere

Internet of Things (IoT) deployments hinge on secure, stable internet connectivity. Businesses are shifting away from old-age WiFi and ethernet connections in favor of cellular data. With stronger security and broad, global coverage, Telnyx M2M and IoT SIMs enable vendors to activate, configure, and monitor devices remotely, no matter where they’re deployed.

All Telnyx SIMs are eUICC enabled and are available as triple-size plastic SIM cards, eSIM chips (embedded MFF2) and over-the-air eSIMs.


Connect your devices on your terms

Construct and deploy a device connectivity system that suits your needs and scales with you, via one global SIM card, an intuitive management portal and flexible APIs.

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    Global, multi-network coverage

    One Telnyx SIM card connects your devices to over 650 networks (4G LTE, 3G, 2G and LTE-M) in over 180 countries worldwide. Check out our extensive coverage list.

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    All major US carriers on 1 SIM

    Telnyx SIMs connect to all major carriers in the United States including AT&T, T-Mobile, US Cellular, and Verizon.

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    Pay-as-you-go pricing

    Pay $1 one-time-charge per SIM and only pay for the data you use, with plans as low as $0.01 / MB, and low fees for inactive SIMs.

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    Private LTE networks

    Connect devices directly to your corporate network with Private Wireless Gateways to avoid the dangers and inefficiencies of the public internet.

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    Public static IP

    Map public IP addresses to your SIMs so you can connect to your devices from other places on the internet, expanding their usability and making it easier to scale your IoT solution.

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    Automatic failover to the best carrier

    Telnyx SIMs connect your devices to the best available network. If a single carrier has an outage, your devices will automatically and seamlessly connect to another for maximum uptime.


Starting at $0.01 per MB

Say goodbye to minimum order quantities and monthly data usage lock-ins. Pay as you go, for what you need and nothing more.


Wherever you need to go

No more managing local carriers and complex roaming agreements. Telnyx IoT SIM cards have global intelligent roaming on tier-1 networks.


countries with multiple carrier options

We've got you covered

Localize your connectivity today.


4G (LTE), 3G, 2G & LTE-M networks

With a single SIM

No SIM swapping, no data roaming fees.


EUICC Sim Card

How It Works
MFF2 vs. SIM Card

Start building

Our code is your code.

curl -X PATCH \
  --header "Content-Type: application/json" \
  --header "Accept: application/json" \
  --header "Authorization: Bearer YOUR_API_KEY" \
  --data '{"tags": ["region_7", "int_cards"]}' \
  • Icon Resources Docs


    Explore tutorials to activate and configure IoT SIM cards on Raspberry Pi, PepWave and other popular devices. Or, browse our in-depth API reference.

  • Icon Resources Article

    Telnyx IoT SIMs power COSMO's child-safe smartwatches

    Learn how COSMO and Telnyx are pioneering child-safe watches with reliable connectivity for a safer, connected future.

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    Create a private LTE network with Telnyx Wireless

    Learn why private LTE networks are essential for secure IoT, and find out how to build one with Private Wireless Gateways and IoT SIM Cards.

Only pay for what you use

Say goodbye to minimum order quantities and monthly data usage lock-ins. Pay as you go, for what you need and nothing more.

Data starting at:


Per MB

Futureproof your IoT deployments

Customer Stories
We used several different carriers before Telnyx, but it was a huge headache to manage. From data limits, to billing, to having to switch SIMs as devices moved around to different parts of the world.
Customer Quote Clair Global

Spencer Lowe

DevOps Manager, Clair Global


The Internet of Things (IoT) refers to the billions of devices that are connected to the internet, collecting and sharing data. Cellular IoT simply connects IoT devices using cellular (or mobile) networks. Learn more about IoT connectivity best practices here.