All Countries


Country code: +41
Number Ordering / Porting (Local Number)
Documents Required for Porting
Letter of Authorization (LOA)

    a. Should be hand-signed and dated within the last 3 months

    b. The local address on the LOA Should match the area code
       of the porting numbers.

Copy of Bill

NOTE: Partial or full port is allowed

Documents Required for Number Ordering

Customer name

Service/Physical address in Switzerland (should match the area code and address stated in the business registration)

Updated Copy of Business Registration

Emergency Numbers


Number Ordering / Porting (Toll-Free)
Documents Required for Porting
Letter of Authorization (LOA)

     a. Should be hand signed

     b. Losing Carrier Name (Company customer pays bills to)

     c. Address (Global Address is accepted)

     d. Bakom Ownership Letter

Copy of Bill

NOTE: Toll-free numbers porting in must initially be assigned
      to the customer, not the customer's current operator. For 
      guidance please see below:

          1. Porting In Toll-Free Numbers in Switzerland- Porting
             in Swiss Toll-Free Numbers is slightly different from
             the usual process because it requires you to be the 
             holder of the number.

             Therefore, before porting Swiss phone numbers into the
             Zoom network, it is vital to make sure that any Toll-Free 
             numbers you wish to port are assigned to you as the 
             current holder of the number, and not to your current 

          2. Verifying Whether You're the Current Holder - In order
             to verify the allocation of your number, please access
             the following link: BAKOM Individual number allocation 
             (0800, 084x, 090x): Individual number (0800, 084x, 090x)  

             Here you will find consumer information on Swiss phone 
             numbers that are allocated individually. These numbers are 
             used to offer services in the following categories: 
             Freephone Numbers (0800), Shared-cost Numbers (084x), 
             Business and Marketing (0900), Games and Competitions 
             (0901), and Adult Entertainment (0906).

          3. Requesting a Reallocation if You Are Not the Holder 
             - Note: If you are not the current holder of the number, 
             you will need to request a reallocation of your number 
             from your current carrier before raising a 'porting in' 
             request with Zoom.

             The reallocation process and duration depend on your 
             current carrier. However, based on industry practice, you 
             will need to download and fill in the form called Transfer 
             of Individually Allocated Number from the following link:
             Individual number (0800, 084x, 090x)

Documents Required for Number Ordering