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Porting charges under General Condition 18

  • Dechrau: 24 Mawrth 2014
  • Statws: Ar gau
  • Diwedd: 12 Mai 2014

1.1 Number portability enables subscribers to retain their telephone number(s) when they switch between communications providers (CPs). When a subscriber keeps their telephone number when changing CP the number is described as 'ported' from one CP to another. Calls that the subscriber subsequently receives are usually first routed to the CP that originally held the number being called. The call is then identified as a call to a ported number and 'onward routed' to the network to which the number has been ported.

1.2 Wholesale porting charges are levied between CPs to recover certain costs associated with the provision of number portability. General Condition 18 (GC18) sets out the terms that CPs must comply with in setting porting charges. GC18.5 states that any porting charges levied by CPs must, subject to the requirement for reasonableness, be cost oriented and based on the incremental costs of providing portability. GC18.5 also prohibits CPs from charging for certain specific types of costs.

1.3 Costs that may be recovered include the cost of conveying onward routed calls: between mobile CPs these charges are called donor conveyance charges (DCCs); and between fixed CPs these charges are called average porting conveyance charges (APCCs). CPs may also levy charges for some non-conveyance costs such as per number set up (i.e. the cost of handling and processing customer orders for number portability) and costs associated with making technical changes to a CP's porting service after it has been built.

1.4 Recent developments in the fixed and mobile sectors have led us to consider how CPs should set porting charges to be compliant with GC18. These developments are the 2013 Narrowband Market Review (2013 NBMR) and the review of mobile donor conveyance charges, which concluded in February 2014 (the DCC Review).

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See also...

Closed cases

This section summaries the outcome of each case and gives general guidance on the approach, which we hope, will be of use to the reader. It is not an exhaustive inventory of precedent.

Archived: The General Authorisation Regime

Archived information and guidance on the General Conditions of Entitlement, the regulatory rules that all communications providers must follow to operate in the UK. This information was superseded on 1 October 2018.

Investigation into Cloud M’s provision of number portability

13 Chwefror 2019

On 2 January 2018, Ofcom opened an investigation into Cloud M’s compliance with GC18.1, GC18.5 and GC18.9.

Own initiative investigation into British Telecommunications Plc (“BT”) concerning compliance with its cost-orientation obligations under General Condition 18.5

10 Ionawr 2017

Ofcom has now closed the investigation concerning BT’s compliance with its cost-orientation obligations under General Condition 18.5.

See all results