Number portability

The portability of telephone numbers promotes competition in the telecommunications market. You can keep your old number even if you switch telecoms operators or move to a new address.

You can keep:

  • your mobile telephone number when you change the telecoms operator providing your mobile subscription;
  • your landline telephone number when you change telecoms operators or address within the telecommunications area.

Portability applies to all telephone numbers apart from service numbers specific to a certain telecommunications area and televoting numbers that begin with 0700.

Permitted delays

The porting time may not exceed five working days, unless you have agreed on a different delivery time with the receiving telecoms operator. If you want, you and your telecoms operator can agree that the number is ported at a later date or time, for example, at the end of your fixed-term contract or term of notice.

The time between closing the old subscription and opening the new one may not be longer than:

  • 10 minutes in mobile subscriptions
  • 60 minutes in land-line subscriptions.

Number portability in fixed-term contracts

As of 25 May 2011, it has been possible to port a number connected to a fixed-term subscription before the contract period ends.

However, porting your telephone number before your fixed-term contract period ends does not release you from the payment obligations relating to your old contract. If you port your number in the middle of your fixed-term contract period, you have to pay the monthly fees of your old subscription until the end of the contract period. So before porting your number, read your subscription contract or contact your operator's customer service to check what kind of a contract you have with your old operator and what fees it involves. After porting the number, your old subscription contract will terminate at the end of the current contract period.

Information on the fixed-term nature of your old contract is also included in the porting request. That is done to ensure that you are aware of the fixed-term nature of your old contract and your obligation to pay the related fees.

If you have a tie-in subscription contract (you have bought your mobile phone and subscription together), you can terminate even a fixed-term contract with two weeks' notice. However, you must separately agree with your old operator on terminating the contract early. You may be required to pay the fixed monthly fees for the remainder of your contract period and an extra fee set for such situations. Take also into account that in tie-in contracts the phone may have a SIM lock that will not be removed until the end of the contract period if you do not terminate the contract before it ends.

The right to port a number before the end of a fixed-term contract is applied as of 25 May 2011 to consumer and business customers and also to existing contracts. You have the right to port your number in the middle of a fixed-term contract period regardless of whether your porting right has been restricted in your contract or the telecoms operator's general terms of contract.

Instructions on telephone number portability are available here.

If you do not know which telecoms operator's network a number uses, information is available free of charge from the service number 0800 02 202 and on the internet at www.siirretytnumerot.fi.

FICORA's regulations and guidelines on telephone number portability

FICORA has issued the Regulation FICORA 46 on telephone number portability and the related explanatory notes MPS 46.

The processes and procedures for telephone number portability have been defined by a working group lead by FICORA. The working group has included representatives from various organisations in the sector. The working group's report on the procedures for telephone number portability (FICORA 1/2011) and its annex including process charts were published 13 April 2011 and are available in Finnish and in Swedish.

FICORA´s Regulation 46 on telephone number portability



Key words: Telephone, Numbering, Telecommunications


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