The version of the "digital SIM" I bought only provided an 'activation code'. I had to call T-Mobile service (on the phone, not online), and use the activation code to sign up. Signing up without depositing money requires explaining to the agent that you'll finish the process later online in your account dashboard (perhaps using a prepaid refill card in your online account), and follow up by setting up your online account to retrieve your account number, or ask for it while you're on the phone. You'll be asked to select a PIN # when you set up the line.
Some agents may decline to set up the line without funding it, and you'd have to call back to get a different agent & go through it again.
With either the version I bought, or Isamorph linked to, you should get an appropriate phone number for your location/zip code, but you won't be able to choose a specific number.
KentE wrote: Nice tip, Isamorph!
I'd seen the 'digital' T-Mobile registrations offered before, but that's the first one I've seen that does all the legwork for you, and hands you the number and porting credentials.
I did one without those added features for a couple bucks less a few months ago. After doing that one, I'd rather pay the extra $2 to avoid going through the hassle again.
Which steps does the product in the above eBay save you from doing?
I believe one is saved the trouble of having to deal with a carrier to port. In other words, with this digital number and info, all one has to do is contact the carrier you want to port to and provide the number and porting info purchased. It is especially good for something like the Sprint one year free BYOD plan where it's required that one port in a number from T Mobile, AT&T, etc. in order to qualify for the plan.
Also, you might be able to contact Ebay sellers of the digital sims and ask before purchasing about your overlapping area code situation, and maybe they can put your concern to rest.