IoT SIM Card for Czech Republic

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IoT SIM Coverage for Czech Republic

Com4 IoT SIM cards connect to 3 networks in Czech Republic on a single profile.

Operator	2G	3G	4G/LTE	5G	NB-IoT	LTE-M
O2/CETIN/Telefonica	✔	–	✔	✔	–	✔
T-Mobile Czech Republic a.s.	✔	–	✔	✔	✔	✔
VODAFONE CZECH REPUBLIC	✔	–	✔	✔	✔	✔

Non-steered SIM

Com4 SIMs are non-steered and carrier-agnostic. The modem connects to the strongest signal available rather than defaulting to one partner network.

One profile across Central Europe

Czechia borders four countries. The same Com4 SIM works across 190+ countries and 750+ networks, so devices crossing those borders stay on one profile.

LTE-M and NB-IoT on the same SIM

Com4 supports LTE-M, NB-IoT, 4G and 5G on one profile, so low-power sensors and high-throughput gateways can share a single connectivity contract.

Ready for the 2G and 3G shutdowns

Com4 publishes a shutdown tracker by country and network. Our SIMs carry LTE-M, NB-IoT, 4G and 5G on one profile, so capable hardware keeps working without a field visit.

Pilot to national rollout

No minimum contract. Pay-as-you-go or data pooling. You pay for active SIMs only, with data from EUR 0.001/MB and volume discounts as you scale.

M2M hardware and a Test Lab

Com4 supplies M2M-grade hardware and runs a Test Lab, so module behaviour can be validated before a production deployment rather than after it.

Global IoT SIM CardsNon-steered, carrier-agnostic, multi-IMSI, eUICC and SGP.32 ready. Five form factors.

Polaris CMPSIM and device management. Real-time monitoring, usage tracking, API-first integration.

Connectivity plansNo minimum contract. Pay-as-you-go or data pooling. Active SIMs only, from EUR 0.001/MB.

Add-on productsCloud Connect, IoT Security via VPN and APN, Fixed Wireless Access, M2M hardware, Test Lab.

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What Our Customers Say About Com4's IoT Connectivity Solutions

"AI is transforming crop protection, but it depends on fast and reliable connectivity in every field. With Com4’s low latency and high speed IoT services, data flows seamlessly and software updates anywhere, driving smarter and more sustainable farming."

Kristian Kaurstad Morthen

Founder and CEO, Dimensions Agri Technologies

“It’s critical that the IoT connectivity just works. With Com4, it does – and that’s why we chose them.”

Bjørn Toreid

Founder and CEO, MedThings

"Com4 enables a reliable and efficient connection at all our customers’ stations. It is of the utmost importance for us to have a supplier who can guarantee that our communication works smoothly and reliably in all nine countries where we operate."

Malin Giselsson

Head of technology, Gomero

"It's often a tedious task to monitor machines that run as they should 99.5% of the time. With our solution based on Com4 technology, workdays are better, and we contribute to fewer cars on the road."

Ole Johan Aspestrand Bjerke

Managing Director, Soundsensing

“Com4 was the only company that showed the flexibility needed to handle the new CENELEC-protocol requiring a different form of communication with the electricity meters.”

Mohammad Ali Koteich

Head Engineer, Bane NOR

"Rapid and stable connectivity between the cages and the operations center is fundamental for the advancement of artificial intelligence."

Svein Erik Gregersen

Chief Operations Officer, Remora Robotics

"The solutions from Com4 are absolutely essential when sensor data from containers is transferred to the cloud."

Henrik Holen

Chief Commercial Officer, Sensorita

“Com4's IoT solutions have exhibited flawless performance, unlike other operators we have tested.”

Lars Lunde Birkeland

Commercial Director, Just Eat Norway

"The solution from Com4 makes it easy for us to get the old telephone devices online. All devices connect to a central web solution. This allows booth guardians across the country to update and upload audio files to the kiosks."

Jens Brynildsen

Managing Director, Maketronics

“For an entrepreneurial company, the expertise of Com4 has been invaluable in developing our GPS tracking technology – and has elevated our capacity in a way we are very grateful for.”

Christian Johannessen

CEO and Founder, Beehive Project

"The technology has been critical to our success and reliable, which is essential in the healthcare sector.”

Jens Espeland

Product Developer, Dignio

2G & 3G

Existing installed base; legacy alarm panels; devices scheduled for module replacement

4G & 5G

Video and camera feeds; gateways and routers; digital signage; Fixed Wireless Access; remote operations

NB-IoT

Utility metering; environmental sensors; alarm panels; fill-level sensors; smart home devices

LTE-M

Asset and vehicle tracking; fleet telematics; cross-border logistics; mobile alarms

Satellite

Remote agricultural land; isolated energy assets; backup connectivity for critical sites

Com4 free IoT test kit box

Try Com4 IoT SIMs in the Czech Republic at no cost

Test our SIMs in your own hardware before you commit to anything. Free kit, no contract, 60 days to reach a decision.

What the free test kit includes:

Up to 5 SIM cards per applicant
100 MB of data per SIM per month, usable within the EU
A 60-day validity period
eSIM form factor available on request
2G, 3G, 4G, 5G, LTE-M and NB-IoT all supported on a single SIM

Worth testing across a land border as well, since assets leaving the country stay on the same profile without a swap.

Order a free test kit

Speak to Our
IoT Expert Today

Tell us about your deployment in Czech Republic and we will get back to you with coverage, pricing and a test kit.

Czech Republic is an EU member state, so EU electronic communications rules apply. The defining change right now is the 2G and 3G withdrawal, which runs per network and decides what hardware is still viable. Regionally, GSMA data shows NB-IoT deployed more widely here than LTE-M. For the live position in Czech Republic, see our coverage tool and sunset tracker.

NB-IoT suits static endpoints sending little data on a long battery life. LTE-M holds a session through cell handover, so it suits anything that moves. One catch: LTE-M has wholesale roaming agreements while NB-IoT lags, so NB-IoT devices can reach fewer networks. Com4 SIMs carry both.

There is no single national date. Timelines run per network, so check our 2G and 3G sunset tracker, filterable by country and network. Devices with LTE-M, NB-IoT or 4G fall back on the same Com4 profile without a site visit. 2G-only modules need replacing, and we will audit yours.

Rules diverge across Europe, and permanent roaming is not treated uniformly even inside the EU. Some countries require IoT SIM registration, some exempt machine-only SIMs, a few restrict permanent roaming. Com4's position for Czech Republic is stated above, and we confirm it against your deployment. Given four land borders, check every country your devices reach.

Order a free test kit: up to five SIM cards, 100 MB per SIM per month, 60-day validity, eSIM on request, and 2G through 5G plus LTE-M and NB-IoT on every SIM. Five SIMs lets you test more than one hardware variant at once. There is no minimum contract.

IoT SIM Cards for Czech Republic: 3 Networks, 2G, 4G/LTE, 5G & more

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IoT SIM Coverage for Czech Republic