What does INX stand for?

Illinois Northern Railway - Federal Railroad Administration identification code

Inanwatan - West Irian, Indonesia - Airport symbol (AD)

Index Character - Computer science

Inexco Oil Co. - Toronto Stock Exchange symbol

Information Exchange (SAUO)

Inman Industries Inc., Laguna Niguel, CA - Manufacturer code for watercraft hull identification number (USCG)

Instruct - Telegraphy (PCTE)

Ion Exchange (NRCH)