Current usages:
Now RFID tags can be categorized into four ranges of frequencies: low frequency, high frequency, ultra high frequency, super high frequency. Below are some common usages for each type of tags according to Wikipedia. [1]
Low frequency RFID tags: animal identification, beer keg tracking, automobile key and lock, anti-theft systems, pets’ location.
[4]
High-frequency RFID tags: book tracking, pallet tracking, building access control, airline baggage tracking, and apparel item tracking, identification badges, replacing earlier magnetic stripe cards.
[4]
UHF RFID tags: pallet and container tracking, and truck and trailer tracking in shipping on the highway systems.
Microwave RFID tags are used in long range access control for vehicles.