G511:1998 1800/13/1300 Number Portability - Network Plan

G511:1998 (.pdf, 259 KB)

Specifies agreed network arrangements for the provision of 1800/13/1300 number portability using a central reference database maintained by an 'Independent body'.

This Guideline was reconfirmed in 2004 and 2009 and the next review is scheduled to occur in 2014.