Hi Ivar,
There are a few people out there with this kind of info - BT being the obvious, but you can also try the providers behind 192.com (who also make the UK Info Disk). This is sourced from the electoral register and other sources.
As an aside, if you get to the stage where you are looking at how to provide your service, I run a company which has serious expertise in automation of DQ services, for a number of international telcos. Drop me a line - duncan.henry@tangent-telecom.com.
Regards,
Duncan |