Can confirm. Work for a major telco and we use ENUM internally.

Yep. The traffic he got appears to be stuff that should have remained private that leaked to a public network; it's not the first time that's happened, particularly for U.S. military traffic which is accustomed to having its own publicly-routable /8's, as opposed to the rest of us who use non-routable 10, 192, etc. space.