[1] International Telegraph Alphabet (CCITT)

[2] Independent Television Authority (->"IEEE Standard Dictionary")

[3] Institute for Telecom and Aeronomy (3.)) (->"IEEE Standard Dictionary")

[4] International Tape Association (->"IEEE Standard Dictionary")

[5] International Telecommunications Administration (->"Lexikon der Text- und Datenkommunikation")

[6] Interim Type Approval

[7] Integreated Test Area/Article (->"NASA Acronym List")

[8] Integreated Truss Assembly (Space Shuttle, ->"NASA Acronym List")