UPT access number (UPTAN)

A number dialed by a UPT user to contact the service provider when using certain terminals and networks. In order to achieve its purpose, the UPTAN must contain information that can be used (a) to route the call to the user's service provider and (b) to specify the service profile. The UPTAN should be an E. 164 number. [After T1.Rpt41-1995]