There are different categories and different forms of VIP mobile numbers.
The different characteristics are as follows.
 

A certain number appears very often in the cell phone number. E.g;

076 541 44 44 | 076 533 33 34

077 222 62 22 | 076 528 88 88

075 555 55 57 | 076 655 55 05

The cell phone number consists of two different numbers, which ideally result in a nice overall picture.

076 535 55 35 | 076 540 50 40

076 636 36 36 | 075 557 57 57

076 770 00 70 | 077 223 22 23

The mobile number has some form of order, this can be ascending or descending. E.g;
076 655 66 77 | 076 234 44 44

076 654321 6  | 076 666 65 64

077 221 22 23 | 076767 7654 

Then there are cell phone numbers that form a palindrome, i.e. have the same sequence of numbers read forwards and backwards. E.g:
076 663 33 66 | 076 360 60 63

075 555 95 55 | 076 828 88 28

076 787 87 87 | 076 66 333 66

We also offer numbers that contain a symbol as a number. E.g:

077 244 24 24 | 077 222 24 22  (24 hour service)

076 666 97 66 | 076 790 79 79  (Born 1979/97)

076 666 911 9 | 07676767 911  (Porsche)

Depending on which feature is fulfilled and to what extent, the number appears more attractive. This is why there are different categories of desired numbers:

BRONZE / SILVER  (Fr. 800.- to 1690.-) / GOLD / PLATINUM.