T-mobile to-go prepaid number porting - anyone done it ?

I did it last Friday night/Saturday morning and it was no problem. Your account number at T-Mobile To Go is the same as your phone number. T Mobile had no problem dealing with this, and AT&T confirmed they've done this many times before.

Call T-Mobile at (800) 937 8997 to determine your account number.

Remember that your number cannot be ported as long as your device is switched on an interacting with the T-Mobile network. [This is true of all devices and all wireless providers.] Once you are ready to port, you must turn off your mobile handset and leave it off until you have successfully activated with at&t.

I did this putting my phone number as account number.

It took about 12 hours to be ported though another few days and many calls to support for my voicemail to work.

There was some problem with the PIN for the account which I never knew I had but T-Mobile changed it to 1234 to make the switch work.

Actually Michael that is not exactly the case. I kept my T-Mobile phone switched on, and once I received a confirmation text from AT&T on my iPhone that my service was rolled over I still kept my T-Mobile phone on for another 24 hours with no problem. There is a delay of a few hours when T-Mobile ports your phone over during which you can make outgoing calls from your iPhone and use the data/SMS functions. But not until you receive a final confirmation from iTunes Store with subject "Mobile Number Transfer Complete" is your number completely ported over. During this interim period I still received SMS messages from T-Mobile users (and only T-Mobile users) on my T-Mobile Nokia phone -- which AT&T and T-Mobile said would happen regardless of whether or not I powered off the old phone and removed the SIM card.

I did this putting my phone number as account number.


It took about 12 hours to be ported though another
few days and many calls to support for my voicemail
to work.

There was some problem with the PIN for the account
which I never knew I had but T-Mobile changed it to
1234 to make the switch work.

I just did this as well. I put my account number as the same as my phone number and guessed at my PIN (I switched from post-paid to pre-paid) as the last 4 of my social. I get the error SMS from AT&T. I called today and a very friendly and helpful rep actually conferenced in T-Mobile to get it resolved. The PIN was the last 4 of my phone number. Go figure.

Anyways, if you don't know your PIN, put in the last 4 of the phone number to be ported. If it's wrong you will get an SMS message with a number to call. Call it and they will get you up and running in no time. The rep even called me back after the number was supposed to be working (like 5 minutes) to make sure that all was well.

Ok So in the account password field you put your PIN # as your account password? I am also porting my T-Mobile to-go number over to my iPhone once it arrives.