AS21299 37.99.64.0/21 CIDR and IP Range Summary.ASN: 21299 - Kar-Tel LLCHost Count: 2046Addressable IPs: 204837.99.64.0/2437.99.65.0/2437.99.66.0/2437.99.67.0/2437.99.68.0/2437.99.69.0/2437.99.70.0/2437.99.71.0/24