AS28201 138.121.64.0/22 CIDR and IP Range Summary.ASN: 28201 - Companhia Itabirana Telecomunicacoes LtdaHost Count: 1022Addressable IPs: 1024138.121.64.0/24138.121.65.0/24138.121.66.0/24138.121.67.0/24