• The signaling interfaces of the UMTS Radio Access Network (RAN) protocols (RANAP, RNSAP, NBAP, and Rrc) are all described in ASN.1 using ASN.1 PER encoding rules to save bandwidth when transmitting data.
  
  
• Intelligent Network Application Part (INAP) specifies in ASN.1 BER the information flows to be exchanged between the different entities of the Intelligent Network functional model.
  
  
• ITU-T H.323 multimedia conferencing protocols (ITU-T H.225, H.235, H.245, H.248, H.450), which includes voice, video, and data conferencing, for use over IP networks are described in ASN.1 using ASN.1 PER encoding rules.
  
  
• Mechanisms used to secure Electronic Commerce on the Internet such as SET (Secured Electronic Transaction) are based on Public-Key Cryptography Standards (PKCS) and X.509 (digital certificates) standards, which are defined using ASN.1 and ASN.1 DER encoding rules.
  
  
• Smart cards such as SIM, WIM and VITALE use ASN.1 for describing the card’s data structure.
  
  
• CTI ( computer-telephony integration) is the use of computers to manage telephone calls. Computer Supported Telecommunications Applications (CSTA), which is part of CTI standards (i.e. CSTA), uses ASN.1 with BER to specify the message exchanged between telecommunications equipment and computing applications.
  
  
• TAP3 : Transferred Account Procedure is the mechanism that specifies how roaming partners (GSM/UMTS) operators are able to bill each other for the use of networks and services. TAP3 format for roaming billing information uses ASN.1 BER encoding rules.
  
  
• The Aeronautical Telecommunication Network (ATN) is a worldwide data network intended to provide data communications connectivity among mobile platforms, airlines and other companies that provide services such as Air Traffic Control, Flight Information Services, Passenger Communications …. Air-ground protocols such as ADS (Automatic Dependent Surveillance), CPDLC (Controller-Pilot Data Link Communications) are described in ASN.1 using ASN.1 PER encoding rules.
  
  
• Telecommunication Management Network (TMN) and Simple Network Management Protocol (SNMP) use ASN.1 (BER) to describe management information.
  
  
• Intelligent Transportation Systems represent the next step in the evolution of the nation's entire transportation system. ITS can be applied to our vast transportation infrastructure of highways, streets, and bridges, as well as to a growing number of vehicles, including cars, buses, trucks, and trains. It uses the latest information and communications technologies to better manage and improve how transportation providers such as governments, transit agencies and truckers offer services to the public. It covers a wide range of new services such as Traffic signal control, Freeway management, Transit management, Electronic toll collection, Railroad crossings or Emergency response. Some protocols defined to provide these services are specified in ASN.1 and use ASN.1 PER encoding rules.
  
  
• Radio frequency identification (RFID) is a new Automatic Identification and Data Capture (AIDC) technology. These wireless AIDC systems allow for non-contact reading and consequently are effective in manufacturing and other hostile environments where barcode labels could not survive. RFID is used in a wide range of markets including livestock identification, automated vehicle identification, automated data collection, identification and analysis systems worldwide. The Radio frequency identification systems use ASN.1 for describing the data exchanged across the air interface.
  
  
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There are many others applications field. You may find more information on the ASN.1 Information site.