AS20442 64.252.240.0/21 CIDR and IP Range Summary.ASN: 20442 - Yale-New Haven Health Services CorporationHost Count: 2046Addressable IPs: 204864.252.240.0/2464.252.241.0/2464.252.242.0/2464.252.243.0/2464.252.244.0/2464.252.245.0/2464.252.246.0/2464.252.247.0/24