Carrier Selection Code (free choice of provider)
Use of a carrier selection code (CSC) allows subscribers to choose their provider for national or international calls. CSCs are composed of 5 digits and are allocated by OFCOM to telecommunication services providers.
List of available or allocated CSC
Technical prescriptions
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- SR 784.101.113/1.11 The free choice of the provider for national and international connections
Forms
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- Request for the allocation of Carrier Selection Codes