AS20001 98.145.40.0/21 CIDR and IP Range Summary.ASN: 20001 - Charter Communications IncHost Count: 2046Addressable IPs: 204898.145.40.0/2498.145.41.0/2498.145.42.0/2498.145.43.0/2498.145.44.0/2498.145.45.0/2498.145.46.0/2498.145.47.0/24