Identifies a specific customer trunk number or trunk number range.
NOTE 1: Trunk number component in the message format is a variable length, one to four character numeric code and trunk numbers of fewer than 4 characters are left justified with remaining spaces not filled. Leading zeros are not to be used as part of the trunk number. However, the trunk number zero is allowed.
VALID ENTRIES:
0-9999
NOTE 1: A four numeric entry or range of four numeric entries.
USAGE: This field is conditional.
NOTE 1: Optional when the first position of the REQTYP field on the ASR Form is “M” and the TCIC field is not populated, otherwise prohibited.
DATA CHARACTERISTICS: 9 numeric characters (including 1 preprinted hyphen)
EXAMPLES: 1 - 2 4
NOTE 1: This example illustrates a numeric value but is left justified since it is treated as text.
2 5 2 4 - 2 5 2 5