DNS
IPv4 & IPv6 calculator.
Split, merge or subtract networks, or convert an address range to CIDRs.
45.40.128.0/18 → /22
16 CIDRsShowing 1–16 of 16. Ranges include every address.
| # | Subnet / WHOIS | First address | Last address | Addresses |
|---|---|---|---|---|
| 1 | 45.40.128.0/22 | 45.40.128.0 | 45.40.131.255 | 1,024 |
| 2 | 45.40.132.0/22 | 45.40.132.0 | 45.40.135.255 | 1,024 |
| 3 | 45.40.136.0/22 | 45.40.136.0 | 45.40.139.255 | 1,024 |
| 4 | 45.40.140.0/22 | 45.40.140.0 | 45.40.143.255 | 1,024 |
| 5 | 45.40.144.0/22 | 45.40.144.0 | 45.40.147.255 | 1,024 |
| 6 | 45.40.148.0/22 | 45.40.148.0 | 45.40.151.255 | 1,024 |
| 7 | 45.40.152.0/22 | 45.40.152.0 | 45.40.155.255 | 1,024 |
| 8 | 45.40.156.0/22 | 45.40.156.0 | 45.40.159.255 | 1,024 |
| 9 | 45.40.160.0/22 | 45.40.160.0 | 45.40.163.255 | 1,024 |
| 10 | 45.40.164.0/22 | 45.40.164.0 | 45.40.167.255 | 1,024 |
| 11 | 45.40.168.0/22 | 45.40.168.0 | 45.40.171.255 | 1,024 |
| 12 | 45.40.172.0/22 | 45.40.172.0 | 45.40.175.255 | 1,024 |
| 13 | 45.40.176.0/22 | 45.40.176.0 | 45.40.179.255 | 1,024 |
| 14 | 45.40.180.0/22 | 45.40.180.0 | 45.40.183.255 | 1,024 |
| 15 | 45.40.184.0/22 | 45.40.184.0 | 45.40.187.255 | 1,024 |
| 16 | 45.40.188.0/22 | 45.40.188.0 | 45.40.191.255 | 1,024 |
Large splits are paged without generating the full address space. Counts are exact for IPv6. Merge and exclusion inputs accept up to 1,024 blocks and produce at most 8,192 CIDRs. Downloads and copy buttons use the displayed page.