Controlled lists represent the possible values of a constrained attribute for data interchange.
This controlled list describes the controlled values for international dialling code type.
It is referred to by the International_Dialling_Code attribute of the Telephone Number sub-type of the Locator entity, which is defined within the Locator Business Data Standard.
This is version 1.1, it replaces v1.0 of the standard.
It is intended for use by, for example, ICT procurers, system developers, programmers, data modellers and statisticians.