[1] Connection ID -Verbindungsidentifikation

[2] Caller ID -Nummer des Anrufers (s. auch CLID, ANI, CLI, MSISDN)

[3] Charge Injection Device (s. CCD)

[4] Computer Integrated Design

[5] Configuration Identification

[6] Cooperate Industrial Design (Philips)

[7] Centre for Information and Documentation (Euratom)

[8] Call Instance Data

[9] Configuration Installation Distribution (IBM)

[10] Computer Interface Device (->"NASA Acronym List")

[11] Cedar Rapids/Iowa City, IA, USA -internationale Fughafen-Kennung.