The show ip nat pool command displays NAT address pool information. The command output displays configuration (mask and address ranges) of all address pools, unless you supply a specific pool name.
show ip nat pool
host1#show ip nat pool pool: pool1 netmask: 255.255.255.0 prefix length: 24 range: 3.3.3.1 to 3.3.3.255 range: 4.4.4.1 to 4.4.4.32 pool: pool2 netmask: 255.255.255.0 prefix length: 24 range: 1.1.1.1 to 1.1.1.24 range: 2.2.2.1 to 2.2.2.55
host1#show ip nat pool pool1 pool: pool1 netmask: 255.255.255.0 prefix length: 24 range: 3.3.3.1 to 3.3.3.255 range: 4.4.4.1 to 4.4.4.32