I get as least a post a month in the direct forum for this information. I have posted many times in the public forum on how to do this.

Short of that, this is the best way to do it:

Taken from: »Convert to dry loop and port land # to other cell carrier???

said by David
Now here is how I would do it.

1.) Proceed with the dry loop dsl number (leaving everything else intact)-

2.) When the dry loop is installed- Arrange your IW to where your dry loop service is coming in at, confirm sync at your nid/sni/gray test jack.

3.) Ensure you have sync and can connect. Make sure your current DSL jack in your home has your new service working.

4.) With the old line, go ahead and initiate a disconnect for your old DSL line. Since you moved to your naked dsl circuit already, this should be no impact to you.

5.)when your old dsl line is disconnected, then go to the registration site and re-register your dsl on your dry loop/naked dsl circuit.

6.)Then port your phone number to whoever you want.

Addendum: 07/30/09

Another post about converting or moving to dry loop.
»Porting my number with DSL attached


How to do it with moving no wires at the premise:

Someone asked if there was a way to do it without moving wires. Short answer- no. Reason- because you would be using the same telco pair. getting a 2nd dry line would mean there's another physical telco wire (and drop wire) for your premise.