Hi NoBull,
Bit of an old thread, but I picked up on your interest in where call centre firms get their numbers. I once provided some IT consulting at a call centre company which turned out to be run by a bunch of charlatans. It gave me a very good insight into how these companies operate. Many of them are outbound call centres that sell their telemarketing capacity to the highest bidder. One week they will be phoning you to "come back to Scottish Power", the next to "switch to Talk/Talk". It is standard practice to be provided with customer or "recent leaver" data by the client company when undertaking one of these campaigns. This is completely above board and done in line with the Data Protection Act. The telemarketing company will also agree to prescreen the list given by Talk Talk/Scottish Power against the Telephone Preference System list (the "don't call me" list). For these campaigns they almost always comply.
Most of these call centres also have little internal businesses (particulalry in IVA's bankruptcy services, sub-prime loans and other "financial service" products for not very well off people), or deals with dodgy companies that provide this. The nasty thing is that they routinely keep a copy of the reputable company data, sit on it for a few months and then use it for their own in-house campaigns, and this time they do not screen it against TPS. This is of course a contravention of the DPA, but these charlatans know they are rarely caught. Besides which, the second modus operandi of these guys is to habitually change the name of their limited companies (free to do at Companies House), and also to put themselves into voluntary liquidation every now and again. They then sell off the assets of the company to their new company, and leave the creditors, employees and clients up the swanee.
I have personlly watched telephony agents phone out offering IVA's and other similar services on data that had been provided for completely different reasons. Data of this nature came from a number of high street banks, catalogue shopping companies and a number of mobile telephone providers, who were never aware of the illegal use of their customer records. There is even a second hand market in data sticks with tens of thousands of customer records on them. Going rate at the time was about 10p-12p per custome record if unprofiled, perhaps twice that amount if profiled.
I occassionally read through the messages here, and note with sadness how niaive people are about these things. Poverty and debt breeds desperation, and these rogues play on that. TPS, trading standards, even the FSA do not care about this - I know, I have in the past passed details to all of those bodies and their responses were laughable.