blueSIP offers the opportunity to port numbers or number blocks from already existing German telephone extensions. This service covers all German local area telephone networks.

Using blueSIP's Premium* service, a number porting to blueSIP is possible. From your current carrier, the phone numbers will be ported to blueSIP to ensure a continuous availability with your well known numbers. However, the porting is only possible if you stay within the same local telephone area network. That means, a porting of phone numbers to other local area telephone networks is not possible.

Please fill in the complete order forms and send them to blueSIP/ccn. The contractor has to be same as the owner of the telephone numbers.
Please verify conveniently you are the owner and free to dispose of the numbers.

After order receipt, blueSIP will start the porting process. Your current carrier will inform us about the time, when the number will be ported to blueSIP. blueSIP will inform you in advance, as there will be a short downtine in availability for the ported numbers. After a successful porting, your phone numbers can be reached from outside.

Please note, that all numbers from your existing telephone connection will be ported. It is not possible to port partially a few numbers. By porting all numbers, it might be that your telephone line contract will be cancelled from your current carrier - and the basis for a broadband DSL connection might be vanished this way!

Charges from your current carrier for the porting of numbers ('transfer away') will not be covered by blueSIP.

There is no need to terminate the contract for the numbers at your telecommunication service provider.

Please note, that calling of emergency numbers (e.g. 110, 112) is limited by using the blueSIP service. blueSIP recommends a hybrid configuration including the access gateway or router to route calls with preselected emergency numbers via classical PSTN lines.
As an alternative, emergency calls may be placed by using a mobile phone.

After the number has been ported to blueSIP, a validation is possible to broadcast your number on outgoing calls (CLIP).

blueSIP Phone number porting - Order form  Please allow blueSIP to provide the contract forms only in German. Get PDFs (blueSIP Premium Vertrag, if not signed already and blueSIP Rufnummernportierung) Please print the documents and fill in completely Send the documents by fax or snailmail to blueSIP/ccn blueSIP 'Premium Vertrag' blueSIP 'Rufnummernportierung'      If you do not have Adobe Acrobat Reader installed, you can download a copy here: Get Acrobat Reader