AS209 63.237.16.0/20 CIDR and IP Range Summary.ASN: 209 - CenturyLink Communications LLCHost Count: 4094Addressable IPs: 409663.237.16.0/2463.237.17.0/2463.237.18.0/2463.237.19.0/2463.237.20.0/2463.237.21.0/2463.237.22.0/2463.237.23.0/2463.237.24.0/2463.237.25.0/2463.237.26.0/2463.237.27.0/2463.237.28.0/2463.237.29.0/2463.237.30.0/2463.237.31.0/24