Identifies the Provider circuit ID.
NOTE 1: This information is the same information found on the ICSC Confirmation Notice in the ECCKT field for new installations and on the ASR in the ECCKT field for subsequent change requests, outside moves and changes in capacity to existing circuit groups.
NOTE 2: This field should match the ECCKT previously provided on the firm order confirmation including spaces and delimiters.
NOTE 3: On DLRs for a multi-point circuit, the ECCKT should also include the segment number for the given circuit segment.
USAGE: This field is required.
DATA CHARACTERISTICS: 53 alpha/numeric characters
EXAMPLES: 3 2 / L G G S / 6 7 8 5 6 2 / N Z / 0 0 1
9 1 0 1 / T 1 / N Y C M N Y B W K Z Z / N Y C M N
Y B S 0 2 A
1 2 3 4 / A F 5 4 I E C N / M D S N W I 1 6
C G O / M - / M D S N W I O 2 0 I T