netstat byte counter wrap?

[Cameron Schaus]

Do the netstat ibytes and obytes counters wrap, and if so at what limit 
do they wrap?

eg.
# netstat -nbI fxp0  
Name    Mtu   Network     Address               Ibytes     Obytes
fxp0    1500  <Link>      00:10:f3:08:5c:69 1269729588 2520482812
Cam