Hi there @denys70 - the date you are given depends on when you enter your pack code...see dates below.......https://community.giffgaff.com/t5/Getting-started/How-can-I-transfer-my-mobile-number-to-giffgaff/ta-p/3487273
If you request to transfer your number before 5pm, your number may be transferred on the next day. Requests made on Friday are processed on Monday. Requests made on Saturday and Sunday are processed on Tuesday.
Point to note : The Mobile Network Portability system does not operate on Bank Holidays. This means that you cannot port in to any UK network on those days. This is due to the 3rd party company that provides this service (Fujitsu) not operating on these days.
On the day of the transfer, you will experience a loss of service on your old SIM at some stage between approximately 9am and 6pm. As the process is dependent on your previous mobile operator releasing your number, we cannot offer assurances about the length of time you will be without service.
We made the graph below to give you an idea of when we release (violet) and assign (green) giffgaff numbers over the course of a regular day.
When you lose service on your old SIM, you will see an error message similar to 'SIM card registration failed.' At this point, put your new giffgaff SIM into your mobile.
Your giffgaff SIM will then stop working for a short while and then start working again but you may find that calls, texts and data work at different times until the process is complete.
It is advisable to switch your phone (with the giffgaff SIM in it) off and on every half hour or so until everything works correctly, which will signify that the number transfer has completed.
Want to transfer your number tomorrow? It is possible - but you MUST submit your PAC before 15:00 (3 p.m.) on the day of your request. Please see the table below:
An alternative contact number (just in case we need to get hold of you)
|TIME / DAY OF REQUEST
||EARLIEST TRANSFER DAY
|BETWEEN 15:01 ON FRIDAY AND 15:00 ON MONDAY
|BETWEEN 15:01 ON MONDAY AND 15:00 ON TUESDAY
|BETWEEN 15:01 ON TUESDAY AND 15:00 ON WEDNESDAY
|BETWEEN 15:01 ON WEDNESDAY AND 15:00 ON THURSDAY
|BETWEEN 15:01 ON THURSDAY AND 15:00 ON FRIDAY