TRN - Trunk Denotes a communications path connecting two switching systems in a network, used in the establishment of an end-to-end connection. Number

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: Required when the RT field is "D" or "F" and the TRN field on the Trunking and/or ACI Form Additional Circuit Information (ACI) Request Form. Used by the customer or the providerfor stipulating circuit specific information which cannot readily be provided ona service specific request form. Generally, the customer will not submit an ACI Formfor ordering a group of circuits, but will simply identify the order using the quantityfield, the CKR field and the (ECCKT) Exchange Company Circuit Identification field(for existing circuits). is populated, otherwise prohibited.

DATA CHARACTERISTICS: 9 numeric characters (including 1 preprinted hyphen indicating a range)

EXAMPLES: 0 2 2 0 - 0 2 5 9

   0 2 2 5 -