Quote from: giqcass on May 21, 2013, 01:19:58 PM
Most will allow porting. Try this tool to see if you can port to Callcentric for example. I have heard murmurs that a Google Voice number from a few unusual (probably rural) area codes can not be ported to certain providers.
www.callcentric.com/lnp/
I really doubt this is something you need to worry about any time soon.
Google Voice numbers issued by Google (as opposed to those ported in to GV from another carrier), are land line CLEC numbers, mostly from
bandwidth.com, a major, nationwide CLEC who also supplies other VoIP service providers. There should be no problem porting them into quality VoIP ISPs (e.g. Anveo, Callcentric,
voip.ms). Where things get a bit less certain are numbers ported into GV, and then ported out. For example: you had landline service from some "Baby Bell" ILEC back in the 1990s. You then ported it to Vonage, then to AT&T Wireless, then to Google Voice. The number, once released from GV, still "belongs" to whatever that old ILEC is now called. So, the success depends on who was the original carrier, and how cooperative they are with porting.