said by georgepan :

I agree with bluethunder's advice to call Vonage and find out about the # port status. I don't think you will have a problem in the end, it just may take longer than a POTS to VOIP port. It may perhaps be helpful to find out what CLEC actually received the number when you ported to Vonage. Sometimes calling the CLEC gives you additional info and lights a fire under them. When I ported from Verizon the CLEC that handled the port was Global Crossing. I called them and got status directly from them. If you find out the CLEC you had with Vonage you may be able to call the CLEC (in addition to calling Vonage) to get an update.