AS24363 121.251.128.0/21 CIDR and IP Range Summary.ASN: 24363 - CERNET2 IX at Shandong UniversityHost Count: 2046Addressable IPs: 2048121.251.128.0/24121.251.129.0/24121.251.130.0/24121.251.131.0/24121.251.132.0/24121.251.133.0/24121.251.134.0/24121.251.135.0/24