If so, I could buy that, but my question is "why?" That is, why not use an actual RFC1918 private address?
Or is your point actually something different, and I'm just missing it?
Ok, I get that in principle... but that particular combination sounds awfully suspicious. The DoD just happens to have extra IP space, and they just happen to lease it to cell phone carriers? Hmmmmmmmmm....
I mean, yeah, it could all be totally innocuous, but I'm still suspicious that there might be something else going on. I'm not exactly a card carrying member of the tinfoil-hat brigade, but I trust our government about as far as I can throw it... :-)
Do a control-f for "DOD". These guys have so much IP4 space its not even funny. Being the government, they'll never give it up. So a total of 200 million IP4 addresses:
http://royal.pingdom.com/2008/02/13/where-did-all-the-ip-num...
So, when the country that starts the internet is also the country with the largest, by far, military and has obscene military spending, well, this is what happens.
7.0.0.0/8 11. 21. 22. 26. 28. 29. 30. 33. 55. 214. 215.
(omitted the 0.0.0/8 from all but the first for brevity)
Back before the commercialization of the Internet these things were relatively free.