Hi,
Somewhere in time we just had such a list with several records in it and used these values in our test.
It worked for us because application allowed duplicated addresses.
If your tested application does not allow duplicated addresses, as a possible option, you may consider API Virtualization from ReadyAPI (https://smartbear.com/product/ready-api/api-virtualization/) and create virtual service that will substitute the real one for your tests and confirm provided address regardless of whether it is real or not.
