Identifies the ICSC code of the Access Service Coordination - Exchange Company (ASC-EC) whenever an access service passes through more than one provider territory.
NOTE 1: An entry in this field indicates that a Multi-EC Form must be associated with this access service request.
NOTE 2: The original value must be retained for the life of the ASR request.
USAGE: This field is conditional.
NOTE 1: Required when multiple providers are involved in providing access service and the EVCI field is not equal to “B” or the PVCI field is not populated.
NOTE 2: Required when the JPR field is populated.
NOTE 3: Otherwise prohibited.
DATA CHARACTERISTICS: 4 alpha/numeric characters
EXAMPLE: N J 9 0