[1] Advanced Computing Environments (Corp.)

[2] Automatic Calibration and Equalization

[3] Automatic Calling Equipment {Telefonie}

[4] Advanced Communications/Control Experiments

[5] Access Connection Element

[6] American Council of Education

[7] Animated Computer Education

[8] Association for Cooperation in Engineering

[9] Aviation Construction Engineers

[10] Automatic Computer Evaluation

[11] Automatic Checkout Equipment

[12] Autonomous Computer Engine (Western Digital)

[13] ASCII Compatible Encoding

[14] Advanced Composition Explorer {Weltraumfahrt}

[15] Arrecife, Canary Islands - internationale Fughafen-Kennung.