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Professional SIM cards for use in M2M and IoT devices

Use our SIM cards to connect your M2M and IoT devices to over 470 global networks. Manage SIM cards and incoming and outgoing communication via data transfer and SMS.

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Go through 3 simple steps to get started with's SIM cards


Order the amount of SIM cards you wish to use


Insert SIM cards in your devices. The SIM cards are activated and ready to use when you receive them.


Use the SIM cards to connect your devices to over 470 global networks.

Our SIM cards support all technologies

In addition to 2G, 3G, 4G and 5G, our SIM cards of course also support the new NB-IoT and LTE-M network technologies.

Roaming is supported in over 180 countries on more than 470 global networks. Our SIM cards are intended for industrial use, meaning they are more durable than standard SIM cards and have a longer life and a larger memory. Our SIM cards are available in three sizes: Nano, micro and normal.

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Applications of IoT and M2M SIM cards

IoT and M2M technology are on the rise in virtually all industries and countries. Below you can find a number of use cases from different industries, where our M2M and IoT sim cards can be used to send and receive data to and from equipment, sensors, vehicles, robots, and other applications.


Over 20 years of experience with network technology was founded by the ONLINECITY.IO team, which has been working with network technologies since 1999. In addition to, the team currently operates the global SMS platform, GatewayAPI and the omnichannel platform RelationCity.’s journey began with SIM card requests in relation to GatewayAPI, and has since evolved into its own business unit. We have been able to utilize our expertise in the field as well as our direct collaboration with operators worldwide, which has made it possible to offer SIM card solutions at the highest level.

This also means that we can offer unique package solutions, where e.g. 2-way SMS communication via the GatewayAPI platform is included.


Why should you choose

  • Best SIM card deal in the industry
  • Best coverage in the industry both locally and globally
  • Easy administration
  • Lightning fast support
  • Competitive prices
  • Fast delivery
  • Synergy effect between GatewayAPI and RelationCity
  • Flexible agreements and package solutions
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Frequently asked questions

Can's SIM cards be used for private use?

We currently only offer our services to companies with a VAT number, and we therefore cannot offer our SIM cards for private use.

What is the notice period?

We do not operate with a minimum contract period. You can always cancel with 1 month's notice. For example, if you cancel on the 22nd of the month, you pay out the month + 1 month.

What is the delivery time?

Delivery time is 1-2 working days in DK and 2-5 working days in the rest of the EU.

What happens if I use all my data?

You can always contact us and ask for more data on your SIM cards. You can also choose to pool the SIM cards you have with us, enabling data to be utilized across all your SIM cards.

What standards do you support?

We support 2G, 3G, 4G and 5G as well as NB-IoT and LTE-M. However, there may be a difference depending on where in the world you need to use your SIM cards.


Contact us

If you would like to know more or just have questions for us, fill out the contact form here to the right or call us directly so we can discuss your needs and wishes. You are also welcome to catch us directly on the chat when we are online.

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