AS1656 166.21.0.0/21 CIDR and IP Range Summary.ASN: 1656 - Lockheed Martin CorporationHost Count: 2046Addressable IPs: 2048166.21.0.0/24166.21.1.0/24166.21.2.0/24166.21.3.0/24166.21.4.0/24166.21.5.0/24166.21.6.0/24166.21.7.0/24