How can I port my existing telephone number to sipgate?

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Generally, we'll be able to port your geographic 01- or 02- UK numbers to sipgate as long as they are in service until the port completes. However, there are some providers and certain area codes that we cannot port over from.

Note: We don't offer the option of porting non-geographic UK numbers (e.g 03xx or 08xx numbers) to sipgate team.

Note: Phone numbers can only be ported to sipgate accounts that have completed the initial account setup. Please select a temporary sipgate phone number and confirm your Start Code online. The Start Code letter should reach you within 2-4 business days after registration and is used to unlock the call capabilities of your account. After this step we'll gladly accept your number porting request.

How do I port my phone number to sipgate?

Generally we'll be able to port your geographic 01- or 02- UK number to sipgate, but there are some providers and area codes that sipgate cannot port from. A list of possible providers can be found in this article.


1. To check if sipgate can port your number contact our Port Desk at: porting@sipgate.co.uk

Please be sure to confirm:

  • the full telephone number you wish to port in your email;
  • your current service provider;
  • your sipgate account number 

2. After confirming sipgate can port your phone number, we'll send you two application forms to complete and sign.  After we've received the completed forms, sipgate will manage the port application for you and keep you updated as it progresses. 

3. When your current provider accepts your port application, they'll confirm the port completion date. We'll let you know the porting date so that you can plan the changeover on your side. 

4. Once the port has been completed, inbound calls will automatically route to your sipgate account, and you'll be able to set your ported number as your outbound called ID. 

How long will it take to port my phone number?

A single line number port will take at least 7 business days and a multi-line port will take at least 10 business days to complete from the application date.

  • sipgate will submit the application to port your telephone number within 1 working day of receiving the porting application fee and your completed, hand-signed porting application forms.
  • Your current service provider should respond to your porting application within 1 working day. When your current service provider accepts your porting application they'll confirm the port completion date which will then be communicated back to you by sipgate by email.
  • For a Single Line port, the port completion date will be at least 5 business days later. The time required for Multi-Line porting applications is longer and depend on your current service provider.
  • New porting applications are processed and also complete Mondays to Fridays only. No port request will be processed or can complete on weekends or public holidays.

BT have the following time-scales for completing a number port (This is to be understood as a guideline only):

  • Single line – 5 to 7 working days
  • Multi-line (greater than 10 lines porting at same time) – 17 working days
  • PBX 10 lines or less – 10 working days
  • PBX 11 lines or greater (or Centrex site) – 20 working days
  • ISDN 10 lines or less – 10 working days
  • ISDN 11 lines or greater – 20 working days

How much does it cost to port the phone number to sipgate? 

The porting is free of charge.

Note: With a sipgate starter account you cannot port numbers to sipgate.

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