AS61 131.60.248.0/21 CIDR and IP Range Summary.ASN: 61 - Air Force Systems NetworkingHost Count: 2046Addressable IPs: 2048131.60.248.0/24131.60.249.0/24131.60.250.0/24131.60.251.0/24131.60.252.0/24131.60.253.0/24131.60.254.0/24131.60.255.0/24