AS14 207.10.136.0/21 CIDR and IP Range Summary.ASN: 14 - Columbia UniversityHost Count: 2046Addressable IPs: 2048207.10.136.0/24207.10.137.0/24207.10.138.0/24207.10.139.0/24207.10.140.0/24207.10.141.0/24207.10.142.0/24207.10.143.0/24