not really.....the numbers are being recycled over and over again....my wife put my number once under her name dunno for what thing and I have been receiving calls BUT asking for her name for the last 8 years. I have never forgiven her but has since learnt to live with it. Nowadays, I just tell the caller you've got the wrong number, obviously right ...a guy answering a call meant for a very obvious lady's name....screw IDA. 1 DNC registry take so long to implement....letting Singtel, M1 and Starhub earn all the money first....