zlacker

Yes, I remember that, although EU regulation was in effect, I still couldn't keep my number when switching from O2 to Tchibo (O2 reseller) because O2 did not allow that "for technical reasons".

>>mirolj+(OP)
I looked it up, the regulation was in effect since about 2006, but there was a loophole: It didn’t trigger if you switched from one provider to the same provider. And I guess that still counts when you switch from a reseller. That part has been changed later.

>>Semaph+wr3
Thanks for the info. Good to know for the next time. Although, at the time they didn't say "we don't let you keep your number because we don't have to" but blamed it on "technical reasons".