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VoIP Number Porting - All You Need to Know

Geographic Landline Number Porting Guide

Geographic Number Porting


Geographic landline number porting allows you to keep your businesses existing telephone number(s) when changing from your existing service provider (Telkom, Neotel, Vodacom Mweb or more) to a United Telecoms VoIP line.

Your geographic business numbers can be ported to United Telecoms when signing up for a VoIP telephone line or Hosted PBX solution, once ported, you can keep your office telephone numbers wherever you move to in South Africa. United Telecoms will handle the entire number porting process for your new VoIP telephone line.

Which Telephone Numbers Can Be Ported to a VoIP Service?

Only geographical landline numbers can be ported to a VoIP service e.g. 011, 043, 031, 021, etc. Phone numbers that begin with 087, 080, and 086 unfortunately cannot be ported to a VoIP service.

What Does Number Porting Cost?

United Telecoms charges R135.00 (excluding VAT) for a single telephone number to be ported to a VoIP service. For porting of more than 20 numbers, please contact us for pricing.

How Long Does Landline  Number Porting Take?

The landline number porting process is now a common occurence in South Africa and Number Porting is known to take as little as 48 hours, we can provide you with an interim telephone line solution to ensure you still receive all your calls while porting to the new VoIP service is in process. 

What Does the Landline Porting Process Entail?

  1. We will require a United Telecoms GNP (Geograpic Number Porting)  Authorisation Form, a porting letter on your company’s letterhead, a copy of the signatory’s ID as well as the recent phone bill from your current service provider.

  2. Once we have received the above documentation, the application will be submitted to the number porting authorities of South Africa.

  3. The authorities will then propose a suitable dates for you to select for the number porting to take place.

  4. Once you have selected a date and all documentation has been received, the porting process takes around 2 weeks to complete.

Important Things to Note for Number Porting

  • Payments should be up to date with your current service provider or unfortunately the landline porting will be rejected.

  • A number linked to an ADSL line can be ported, however, the ADSL service will be canceled if the number associated to it is ported to United Telecoms and no replacement number is requested. You therefore need to state if you have an ADSL line linked to the number you wish to port on the GNP Authorisation Form.

  • Number porting is only activated on the VoIP service on the date agreed to.

  • Only once the landline number porting has taken place can you cancel your services with your current provider. It is imperative you do not cancel your lines before the porting has been successful on the new VoIP service, if you do, you will lose your geographical number.

Can Landline Number Porting Be Rejected?

Yes, porting can be rejected for a few reasons:

  1. If your account with your current service provider is in arrears

  2. If you canceled your services with your current service provider before the porting was actioned

  3. If you do not own the phone number you wish to port

  4. If Telkom is aware that you are planning to or have already moved out of your current exchange area

  5. If the number porting was done fraudulently or in error.


United Telecoms has assisted countless clients with porting their business numbers successfully for their new VoIP telephone lines. We will manage the entire number porting process for you ensuring we make the process as seamless and as quick as possible for your business.

If you are in the market for a VoIP solution and need to port your numbers(s) or have any further questions, contact us on 086 001 8101 or to speak to one of our solutions consultants.

Got questions? Contact our experts today.

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We service the following locations in South Africa

Western Cape: Cape Town, Belville, Paarl, Stellenbosch, Somerset West, Vredendal, Hout Bay, Green Point, Bloubergstrand, Durbanville, Melkbosstrand.
Eastern Cape: Port Elizabeth, Knysna, East London, George.
Kwa-Zulu Natal: Durban, Pinetown, Ladysmith, Newcastle, Ballito, Port Shepstone, Pietermaritzburg, Umhlanga, Westville, Hillcrest, Amanzimtoti.
Gauteng: Johannesburg, Vereeniging/Vaal, Sandton, Midrand, Pretoria, Centurion, Randburg, Roodepoort, Germiston, Alberton, Edenvale, Menlo Park. 
Free State: Bloemfontein, Welkom, Bethlehem.
Mpumalanga: Witbank, Nelspruit.
Northern Cape: De Aar, Kimberley, Repra (Upington Area).
North West: Klerksdorp, Mafikeng.
Limpopo: Phalaborwa, Polokwane/Pietersburg.
Outside South Africa: Botswana, Zimbabwe, Swaziland, Namibia, Mozambique.

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