Identifies the ICSC that will receive this request.
NOTE 1: The ICSC codes appearing in this field represent the Other Exchange Company(s) (OECs) when the ASC-EC field is populated on the ASR form.
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).
VALID ENTRIES: |
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Valid ICSC Code |
NOTE 1: This field cannot be identical to the ASC-EC entry on the ASR Form.
USAGE: This field is required for all OECs involved.
DATA CHARACTERISTICS: 4 alpha/numeric characters.
EXAMPLE: G T 9 9