IPv4 AS Names Directory: AS Name 21Vianet.Co. Ltd
21Vianet.Co. Ltd - IPv4 Network Ranges (CIDRs)
21Vianet.Co. Ltd has 9 IPv4 network ranges (CIDR).
Including: 103.253.204.0/22, 120.132.224.0/21, 120.133.240.0/20, 211.148.17.0/24, 211.148.18.0/23, 211.148.20.0/22, 211.148.24.0/23, 211.148.27.0/24, 211.148.28.0/22
This information corresponds to IPv4 addresses for AS Name 21Vianet.Co. Ltd, but this AS Name also has associated IPv6 address ranges.
Check the IPv6 data for this AS Name
Download the complete list of CIDRs and AS numbers associated with 21Vianet.Co. Ltd for IPv4 in multiple formats: Text File (one per line), Comma Separated Text File, JSON or CSV File. The preview shows only a portion of the data, but these download options allow access to the full dataset.
21Vianet.Co. Ltd - Autonomous System Numbers (AS)
21Vianet.Co. Ltd is associated with 1 AS number.
The AS number is: AS17428
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 103.253.204.0 to 103.253.207.255 | 103.253.204.0/22 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 120.132.224.0 to 120.132.231.255 | 120.132.224.0/21 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 120.133.240.0 to 120.133.255.255 | 120.133.240.0/20 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 211.148.17.0 to 211.148.17.255 | 211.148.17.0/24 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 211.148.18.0 to 211.148.19.255 | 211.148.18.0/23 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 211.148.20.0 to 211.148.23.255 | 211.148.20.0/22 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 211.148.24.0 to 211.148.25.255 | 211.148.24.0/23 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 211.148.27.0 to 211.148.27.255 | 211.148.27.0/24 | AS17428 | 21Vianet.Co. Ltd | See Range |
| 211.148.28.0 to 211.148.31.255 | 211.148.28.0/22 | AS17428 | 21Vianet.Co. Ltd | See Range |
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