I recently moved my blog to Digital Ocean. My domain is with GoDaddy and when changing the Nameservers over to the three required by Digital Ocean, I was asked for the IP address of each one.
I tried to leave it blank, but the GoDaddy nameserver IP address was a required field.
I wasn't provided with any and couldn't seem to locate any.
If you are in the same boat, just do the following if you are on a Mac or have access to a Linux terminal.
Simply ping the nameserver and it will give you the IP address of it.
And there it is:
And do the same for the other two nameservers or whatever nameservers you need to point to.