R(config)# ip prefix-list EXAMPLE permit 0.0.0.0/0
! Matches only the default route
R(config)# ip prefix-list EXAMPLE 0.0.0.0/0 le 32
R(config)# ip prefix-list EXAMPLE 0.0.0.0/0 {le MAX|ge MIN le MAX|ge MIN}
! Matches any routes with the subnet mask between 0->MAX, MIN->MAX or MIN->32 (le,le and ge,ge)
R(config)# ip prefix-list EXAMPLE 0.0.0.0/1 {le MAX|ge MIN le MAX|ge MIN}
! Matches any route to a Class A destination with a mask between 0->MAX, MIN->MAX or MIN->32
R(config)# ip prefix-list EXAMPLE 128.0.0.0/2 {le MAX|ge MIN le MAX|ge MIN}
! Matches any route to a Class B destination with a mask between 0->MAX, MIN->MAX or MIN->32
R(config)# ip prefix-list EXAMPLE 192.0.0.0/3 {le MAX|ge MIN le MAX|ge MIN}
! Matches any route to a Class C destination with a mask between 0->MAX, MIN->MAX or MIN->32