Identifies the ICSC that is the control company.
NOTE 1: The ICSC code appearing in this field will represent the ASC-EC.
NOTE 2: The first two characters identify the provider. The third and fourth character positions are a unique number within the region identifying the specific ICSC. The allowable range is 00 to 99. The ICSC codes will be supplied and periodically updated by the providers to the customers. The providers will also supply guidelines on choosing the appropriate ICSC.
NOTE 3: The format and structure of this field is defined by Telcordia in BR-751-100-801 Interexchange Customer Service Center/Service Center (ICSC/SC).
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VALID ENTRIES: |
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Valid ICSC Code |
NOTE 1: This field must be identical to the ASC-EC entry on the ASR Form.
USAGE: This field is required.
DATA CHARACTERISTICS: 4 alpha/numeric characters.
EXAMPLE: P T 0 2