Wha? Must be my ‘US operators amuse me’ day. 
Link: Irony and Mobile Service Requirements | 12/25/2005 | mobile jones.
In the process of ordering an N90 with T-mobile service, I ran into a big problem. I made the switch to mobile only telephony in 2002. T-mobile won’t process my order for new service if I don’t have a landline? The mobile industry provides tons of services to make it easy for me to cut the cord, and so, I do. Now, I can’t get mobile service because I’m mobile only. Doh!
Hi Charlie, I’ve been mobile only since ’97 and on T-Mobile since Y2K. You can give them any random phone number that is not your mobile phone on the application.