Identifies the previous Exchange Company Circuit ID for Provider Initiated Network Groom Activity.
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 Form 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.
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 conditional.
NOTE 1: Required when the ECIA field is “X”, otherwise prohibited.
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