That range actually belongs to Microsoft (it's classified as routable by ARIN), they made it the default no-DHCP range with Windows XP. Others may have followed suit now.

I was wondering about the router running out of IPs, but unless someone specifically configured it that way, or he already has 100 devices on the network, I don't know of any router that is so limited out of the box.

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris