AS57844 139.28.72.0/22 CIDR and IP Range Summary.ASN: 57844 - SPDNet Telekomunikasyon Hizmetleri Bilgi Teknolojileri Taahhut Sanayi Ve Ticaret A.S.Host Count: 1022Addressable IPs: 1024139.28.72.0/24139.28.73.0/24139.28.74.0/24139.28.75.0/24