DNS

IPv4 & IPv6 calculator.

Split, merge or subtract networks, or convert an address range to CIDRs.

Up to 256 subnets per page. All 64 results of a 64-subnet split appear together.

One IP family per calculation · no network requests

54.204.0.0/15 → /22

128 CIDRs

1,024 addresses per subnet131,072 addresses totalNetmask 255.255.252.0

Showing 1–128 of 128. Ranges include every address.

#Subnet / WHOISFirst addressLast addressAddresses
154.204.0.0/2254.204.0.054.204.3.2551,024
254.204.4.0/2254.204.4.054.204.7.2551,024
354.204.8.0/2254.204.8.054.204.11.2551,024
454.204.12.0/2254.204.12.054.204.15.2551,024
554.204.16.0/2254.204.16.054.204.19.2551,024
654.204.20.0/2254.204.20.054.204.23.2551,024
754.204.24.0/2254.204.24.054.204.27.2551,024
854.204.28.0/2254.204.28.054.204.31.2551,024
954.204.32.0/2254.204.32.054.204.35.2551,024
1054.204.36.0/2254.204.36.054.204.39.2551,024
1154.204.40.0/2254.204.40.054.204.43.2551,024
1254.204.44.0/2254.204.44.054.204.47.2551,024
1354.204.48.0/2254.204.48.054.204.51.2551,024
1454.204.52.0/2254.204.52.054.204.55.2551,024
1554.204.56.0/2254.204.56.054.204.59.2551,024
1654.204.60.0/2254.204.60.054.204.63.2551,024
1754.204.64.0/2254.204.64.054.204.67.2551,024
1854.204.68.0/2254.204.68.054.204.71.2551,024
1954.204.72.0/2254.204.72.054.204.75.2551,024
2054.204.76.0/2254.204.76.054.204.79.2551,024
2154.204.80.0/2254.204.80.054.204.83.2551,024
2254.204.84.0/2254.204.84.054.204.87.2551,024
2354.204.88.0/2254.204.88.054.204.91.2551,024
2454.204.92.0/2254.204.92.054.204.95.2551,024
2554.204.96.0/2254.204.96.054.204.99.2551,024
2654.204.100.0/2254.204.100.054.204.103.2551,024
2754.204.104.0/2254.204.104.054.204.107.2551,024
2854.204.108.0/2254.204.108.054.204.111.2551,024
2954.204.112.0/2254.204.112.054.204.115.2551,024
3054.204.116.0/2254.204.116.054.204.119.2551,024
3154.204.120.0/2254.204.120.054.204.123.2551,024
3254.204.124.0/2254.204.124.054.204.127.2551,024
3354.204.128.0/2254.204.128.054.204.131.2551,024
3454.204.132.0/2254.204.132.054.204.135.2551,024
3554.204.136.0/2254.204.136.054.204.139.2551,024
3654.204.140.0/2254.204.140.054.204.143.2551,024
3754.204.144.0/2254.204.144.054.204.147.2551,024
3854.204.148.0/2254.204.148.054.204.151.2551,024
3954.204.152.0/2254.204.152.054.204.155.2551,024
4054.204.156.0/2254.204.156.054.204.159.2551,024
4154.204.160.0/2254.204.160.054.204.163.2551,024
4254.204.164.0/2254.204.164.054.204.167.2551,024
4354.204.168.0/2254.204.168.054.204.171.2551,024
4454.204.172.0/2254.204.172.054.204.175.2551,024
4554.204.176.0/2254.204.176.054.204.179.2551,024
4654.204.180.0/2254.204.180.054.204.183.2551,024
4754.204.184.0/2254.204.184.054.204.187.2551,024
4854.204.188.0/2254.204.188.054.204.191.2551,024
4954.204.192.0/2254.204.192.054.204.195.2551,024
5054.204.196.0/2254.204.196.054.204.199.2551,024
5154.204.200.0/2254.204.200.054.204.203.2551,024
5254.204.204.0/2254.204.204.054.204.207.2551,024
5354.204.208.0/2254.204.208.054.204.211.2551,024
5454.204.212.0/2254.204.212.054.204.215.2551,024
5554.204.216.0/2254.204.216.054.204.219.2551,024
5654.204.220.0/2254.204.220.054.204.223.2551,024
5754.204.224.0/2254.204.224.054.204.227.2551,024
5854.204.228.0/2254.204.228.054.204.231.2551,024
5954.204.232.0/2254.204.232.054.204.235.2551,024
6054.204.236.0/2254.204.236.054.204.239.2551,024
6154.204.240.0/2254.204.240.054.204.243.2551,024
6254.204.244.0/2254.204.244.054.204.247.2551,024
6354.204.248.0/2254.204.248.054.204.251.2551,024
6454.204.252.0/2254.204.252.054.204.255.2551,024
6554.205.0.0/2254.205.0.054.205.3.2551,024
6654.205.4.0/2254.205.4.054.205.7.2551,024
6754.205.8.0/2254.205.8.054.205.11.2551,024
6854.205.12.0/2254.205.12.054.205.15.2551,024
6954.205.16.0/2254.205.16.054.205.19.2551,024
7054.205.20.0/2254.205.20.054.205.23.2551,024
7154.205.24.0/2254.205.24.054.205.27.2551,024
7254.205.28.0/2254.205.28.054.205.31.2551,024
7354.205.32.0/2254.205.32.054.205.35.2551,024
7454.205.36.0/2254.205.36.054.205.39.2551,024
7554.205.40.0/2254.205.40.054.205.43.2551,024
7654.205.44.0/2254.205.44.054.205.47.2551,024
7754.205.48.0/2254.205.48.054.205.51.2551,024
7854.205.52.0/2254.205.52.054.205.55.2551,024
7954.205.56.0/2254.205.56.054.205.59.2551,024
8054.205.60.0/2254.205.60.054.205.63.2551,024
8154.205.64.0/2254.205.64.054.205.67.2551,024
8254.205.68.0/2254.205.68.054.205.71.2551,024
8354.205.72.0/2254.205.72.054.205.75.2551,024
8454.205.76.0/2254.205.76.054.205.79.2551,024
8554.205.80.0/2254.205.80.054.205.83.2551,024
8654.205.84.0/2254.205.84.054.205.87.2551,024
8754.205.88.0/2254.205.88.054.205.91.2551,024
8854.205.92.0/2254.205.92.054.205.95.2551,024
8954.205.96.0/2254.205.96.054.205.99.2551,024
9054.205.100.0/2254.205.100.054.205.103.2551,024
9154.205.104.0/2254.205.104.054.205.107.2551,024
9254.205.108.0/2254.205.108.054.205.111.2551,024
9354.205.112.0/2254.205.112.054.205.115.2551,024
9454.205.116.0/2254.205.116.054.205.119.2551,024
9554.205.120.0/2254.205.120.054.205.123.2551,024
9654.205.124.0/2254.205.124.054.205.127.2551,024
9754.205.128.0/2254.205.128.054.205.131.2551,024
9854.205.132.0/2254.205.132.054.205.135.2551,024
9954.205.136.0/2254.205.136.054.205.139.2551,024
10054.205.140.0/2254.205.140.054.205.143.2551,024
10154.205.144.0/2254.205.144.054.205.147.2551,024
10254.205.148.0/2254.205.148.054.205.151.2551,024
10354.205.152.0/2254.205.152.054.205.155.2551,024
10454.205.156.0/2254.205.156.054.205.159.2551,024
10554.205.160.0/2254.205.160.054.205.163.2551,024
10654.205.164.0/2254.205.164.054.205.167.2551,024
10754.205.168.0/2254.205.168.054.205.171.2551,024
10854.205.172.0/2254.205.172.054.205.175.2551,024
10954.205.176.0/2254.205.176.054.205.179.2551,024
11054.205.180.0/2254.205.180.054.205.183.2551,024
11154.205.184.0/2254.205.184.054.205.187.2551,024
11254.205.188.0/2254.205.188.054.205.191.2551,024
11354.205.192.0/2254.205.192.054.205.195.2551,024
11454.205.196.0/2254.205.196.054.205.199.2551,024
11554.205.200.0/2254.205.200.054.205.203.2551,024
11654.205.204.0/2254.205.204.054.205.207.2551,024
11754.205.208.0/2254.205.208.054.205.211.2551,024
11854.205.212.0/2254.205.212.054.205.215.2551,024
11954.205.216.0/2254.205.216.054.205.219.2551,024
12054.205.220.0/2254.205.220.054.205.223.2551,024
12154.205.224.0/2254.205.224.054.205.227.2551,024
12254.205.228.0/2254.205.228.054.205.231.2551,024
12354.205.232.0/2254.205.232.054.205.235.2551,024
12454.205.236.0/2254.205.236.054.205.239.2551,024
12554.205.240.0/2254.205.240.054.205.243.2551,024
12654.205.244.0/2254.205.244.054.205.247.2551,024
12754.205.248.0/2254.205.248.054.205.251.2551,024
12854.205.252.0/2254.205.252.054.205.255.2551,024
Download this page:

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.