AS3143 152.129.240.0/21 CIDR and IP Range Summary.ASN: 3143 - U.S. Department of Veterans AffairsHost Count: 2046Addressable IPs: 2048152.129.240.0/24152.129.241.0/24152.129.242.0/24152.129.243.0/24152.129.244.0/24152.129.245.0/24152.129.246.0/24152.129.247.0/24