There's not much about Unavo but they use the domain name resporgportal.com in their email address so presumably they provide resporg services. They have 600 numbers but only a few in the top 1%.
Best 1% List
We've helped tens of thousands of customers get great numbers over the past 25+ years
“I want to express my appreciation for the effort your team placed in assisting me with my toll free numbers. There was substantial extra effort made to make sure I had the very best numbers for my business including new ideas for numbers I had not considered. Thanks again for being true professionals in this complicated area!”
“I am testing your toll free 800 acquistion service. So far, I am very impressed. I have acquired several 800 numbers in the past. I first saw your page a couple of years ago. I was a neophyte (beginner) and didn't know what I was doing... I ended up acquiring numbers from various other sources. I have paid a lot of money...and had other servcies try to charge me an arm and two legs for numbers. Your service seems to have the ability to access a large number of 800 numbers at a fraction of the price that others want to rent their numbers...and sometime that is just for a limited area (they are also renting the same number to somone else in a different calling area). Some of these other companies try to do exactly what you have said... exert pressure on you to use their services and not letting you transfer the number (or making it very difficult). If everything goes as planned, I will be using your services whenever possible and I will be telling a lot of my clients about your service.”
Pleasant grove, UT
“I ended up using my local provider here in Canada, which is TELUS. So far it's been a smooth transition. Thanks again for all of your help and I would definitely use your firm in the future.”