Number of Call Centres

[(glenwhite)]

Would anyone hazard a guess at the number of call centres or agents in New Zealand?

[EldarIO]

Thank you for your reply. But I don't understand what "the short answer is no" means.

Once again, my question:
Can one request a vanity call sign with a number outside of one's own region, or does the number have to match the region?

I can't tell if no is your answer to the first or second part.