Wireless telemetry or Machine-to-Machine technology was adopted early by businesses that could see the value in data and it quickly became commonplace to deploy these systems in applications such as metering. From simple beginnings M2M has sophisticated to a point where it is almost synonymous with the Internet of Things, an association which is likely to strengthen further. IoT is becoming an increasingly prominent technology that has the potential, and is already making steps towards, radically altering our world like almost no other wireless technology that is currently undergoing commercial development.

Deployed IoT Networks

The following chart shows the distribution of active Internet of Things networks by wireless network technology. Our database is a work in progress, data may be incomplete.

eMTC (LTE Cat-M1)

eMTC is a type of LTE-M network published by 3GPP in the Release 13 specification.

NB-IoT (LTE Cat-NB1)

Narrowband IoT (NB-IoT) is a 3GPP Release 13 feature that reuses various principles and building blocks of the LTE physical layer and higher protocol layers and defines a new Cat-NB1 UE. The standard leverages a mobile carriers existing LTE base s


Extended coverage GSM IoT (EC-GSM-IoT) is a standard-based Low Power Wide Area technology. It is based on eGPRS and designed as a high capacity, long range, low energy and low complexity cellular system for IoT communications.


LoRa® is a proprietary physical layer wireless protocol developed by US semiconductor corporation Semtech, designed to facilitate low power, low data rate communications in the unlicensed ISM bands between 137 and 1020 MHz. 

Sigfox UNB

Unlike 3GPP IoT technologies and proprietary protocols, Sigfox is an end-to-end network technology, licensed to a local operator who deploys Sigfox radio access infrastructure on an unlicensed ISM frequency in the host country.


ZigBee is a specification developed by the ZigBee Alliance based on the IEEE 802.15.4 standard for wireless personal area networks (WPANs).