yep, and I learned to hate IP-Phones this way. Cause some manufacturer (Siemens) wrote (writes?) Decimal IP with 0 Prefix (so it's always three digits) for aesthetics.
I had a case 15 years ago when .255 were accepted in WebGUI and the stack really tried to get that IP, found out only by running Ethereal on a directly connected patch.
> PING 10.0.2.010 (10.0.2.8)...
It was all fun and games until they started mixing bases, decimal and octal in the same address.
That's just cursed.