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Trying to keep my old number

Anonymous
Not applicable
I recently got a new phone that required a new sim. I decided to change from my current pay & go to a pay monthly sim but the issue arose when I wanted to keep my current pay & go phone number. I was attempting to keep my number but in doing so I used the sim swap thing but the pay monthly sim was already activated, like I had service, in store when I bought the phone and it came with a temporary number.

So my questions are:
1) Will anything happen as I tried to sim swap an activated sim?
And 2) How do I keep my old number?

Any help would be greatly appreciated, thank you slight_smile
Message 1 of 47
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Curr946
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post back and let us know it went all ok
Current Phone: Sony Xperia XZ Premium
Message 11 of 47
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Cleoriff
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@MI5 wrote:
This form spells it all out for you
http://service.o2.co.uk/IQ/SRVS/CGI-BIN/WEBCGI.EXE?New,Kb=Companion,Ts=Webforms,T=PreToPost

^^^^^^^This form is the one my husband used 4 weeks ago when he swapped from PAYG to contract and wanted to keep his old number. He could have used the form in @adamtemp64's link but the one in @MI5's link was the one I found him first....It swapped in 10 minutes. No hanging about waiting for CS to answer the phone....

Veritas Numquam Perit

Girl in a jacket
Message 12 of 47
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adamtemp64
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I cannot believe how many different forms are available mine was from the latest style help pages go figure.

iPhone 11 Pro 256gb on unlimited data
iPad Pro 12.9” 2020 256gb refresh o2 family discount
Apple Watch series 4
My first mobile was in 1995 a CM-R111 from sony on Cellnet.
Wincanton South Somerset (Full 4g 3G 2g indoor coverage) Remember we are all customers here not customer services

Message 13 of 47
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MI5
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The old one is a bit clearer so easier for some to use.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
Message 14 of 47
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Anonymous
Not applicable

Right, I tried using the first form and over 24 hours later, the number still has not changed. So I was going to use the other, easier form but it asks for the SIM card number, if the internet is to be believed then that is the number on the back of the sim card however this number does not start with 89441100, so what do I do?

Message 15 of 47
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Anonymous
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ok, I now see that the number does start with 00 and so I assume I just add 894411 to the start as that will bring it to 19 digits
Message 16 of 47
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jonsie
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@Anonymous wrote:
ok, I now see that the number does start with 00 and so I assume I just add 894411 to the start as that will bring it to 19 digits

Yes that's exactly right.

Message 17 of 47
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Anonymous
Not applicable

quick question, how long does this number change usually take, the email says 1-4 working hours, is that how long it usually takes?

Message 18 of 47
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MI5
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It should be next day if submitted before 9.00pm but can take up to 48 hours.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
Message 19 of 47
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Anonymous
Not applicable

Ok, that's fine, I did it after 9pm last night so I guess I'm looking at tomorrow?

Message 20 of 47
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