What is NB-IoT NB2?
Matthew Barrera
Updated on April 04, 2026
LTE Cat NB2 refers to devices which are based on the enhanced NB-IoT protocol as standardized in the 3GPP Release 14. Here is a comprehensive comparison table to see the differences between the NB-IoT 3GPP R13 and R14 specifications, and NB1 vs. NB2 devices.
How many devices can be connected to nbnb2?
NB2 supports a multi-carrier mode with up to 15 non-anchor carriers, which can support up to 1,000,000 connected NB-IoT devices per square kilometer. Five new FDD frequency bands are introduced for NB-IoT: 11, 21, 25, 31, and 70.
What is NB-IoT 3GPP R14?
3GPP R14 enhances NB2 devices with a new 14 dBm power class to allow the use of smaller batteries and small form factors. NB-IoT 3GPP release 14. What are the new features? What is ZigBee protocol?
