National LoRaWAN Network

LoRaWAN (Long Range Wide Area Network) is a wireless communication technology designed for the Internet of Things (IoT).It allows devices with very low power consumption to send small amounts of data over long distances, from several kilometers in urban areas to more than 15 km in rural areas.

Network is live

SSI’s Operational LoRaWAN Network

SSI has built its own LoRaWAN network, in live operation since 2026. Our gateways receive sensor data 24 hours a day, and the data is processed by our own network and application servers. The network is ready to connect new devices and pilot projects.

8cities covered

AES-128data encryption

24/7real-time data

See live data from a sensor in Sofia ↓

How Does LoRaWAN Work?

LoRaWAN uses a star topology::

1End Devices (Sensors)Measure data such as temperature, humidity, location and more.

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2GatewayReceives signals from the devices.

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3Network ServerProcesses, filters and forwards the data.

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4Application ServerVisualizes and uses the information.

Communication is encrypted and optimized for minimal power consumption.

Key Advantages

Very low power consumption – batteries can last for years
Long range
Low deployment cost
High level of security
Operates in unlicensed frequency bands

Applications

LoRaWAN is widely used in:

Smart cities – street lighting, parking
Agriculture – soil moisture, climate
Industry – equipment monitoring
Utilities – water and electricity meters
Environment – air quality, noise

Coverage

Map of LoRaWAN coverage points in Bulgaria

Sofia
Plovdiv
Gabrovo
Stara Zagora
Ruse
Shumen
Blagoevgrad
Svishtov

Live Network Data

Temperature and Humidity – 8 Myunhen St., Sofia