Not really. I'm connected "wirelessly" and ipconfig (on Windows command prompt) results in 192.168.2.1 gateway and 192.168.2.186 IP (wireless).
Edit: It's just different "classes" of private IPs. It doesn't necessarily have to do with wireless x wired.
https://answers.yahoo.com/question/index?qid=20110707215427AAahdG0