STR - Single Tandem Routing

Identifies a request for connection at a single tandem for terminating calls to a single provider’s tandems and subtending offices in multiple tandem LATAs.

VALID ENTRIES:

Y = Install

R = Remove

USAGE: This field is conditional.

NOTE 1: Optional when the provider has multiple tandems within the LATA LATA is the acronym for Local Access and Transport Area, which defines a geographic area with common economic and social attributes. A LATA may cross a state boundary.AT&T subdivided the United States into some 160 LATAs upon divestiture of its local exchange operations in 1984. Each LATA approximates the subdivision of AT&T's LongLine network prior to divestiture. As part of the divestiture agreement, AT&T and other interexchange carriers (IXCs) could provide service between LATAs (interLATA), while the LECs could provide service within a LATA (intraLATA)., otherwise prohibited.

DATA CHARACTERISTICS: 1 alpha character

EXAMPLE: Y