IPRangeExplorer

/10 vs /14 — Subnet Comparison

A /10 subnet is 16× larger than a /14. Every additional bit in the prefix halves the address space — the 4-bit difference between these two means /10 has 24 = 16 times as many addresses.

/10

4 million IPs — quarter of a /8

Full reference →
Total IPs 4,194,304
Usable Hosts 4,194,302
Subnet Mask 255.192.0.0
Wildcard Mask 0.63.255.255

Typical Uses

  • →Major regional segment in enterprise
  • →Large cloud region allocation
/14
Full reference →
Total IPs 262,144
Usable Hosts 262,142
Subnet Mask 255.252.0.0
Wildcard Mask 0.3.255.255

Key Differences

16×
more IPs in /10 than /14
16
/14 subnets fit inside one /10
4
bits of difference in prefix length

How 16 /14 Subnets Divide a /10

Example using 10.0.0.0/10 as the parent block.

# CIDR Network First Usable Last Usable Broadcast Hosts
1 10.0.0.0/14 10.0.0.0 10.0.0.1 10.3.255.254 10.3.255.255 262,142
2 10.4.0.0/14 10.4.0.0 10.4.0.1 10.7.255.254 10.7.255.255 262,142
3 10.8.0.0/14 10.8.0.0 10.8.0.1 10.11.255.254 10.11.255.255 262,142
4 10.12.0.0/14 10.12.0.0 10.12.0.1 10.15.255.254 10.15.255.255 262,142
5 10.16.0.0/14 10.16.0.0 10.16.0.1 10.19.255.254 10.19.255.255 262,142
6 10.20.0.0/14 10.20.0.0 10.20.0.1 10.23.255.254 10.23.255.255 262,142
7 10.24.0.0/14 10.24.0.0 10.24.0.1 10.27.255.254 10.27.255.255 262,142
8 10.28.0.0/14 10.28.0.0 10.28.0.1 10.31.255.254 10.31.255.255 262,142
9 10.32.0.0/14 10.32.0.0 10.32.0.1 10.35.255.254 10.35.255.255 262,142
10 10.36.0.0/14 10.36.0.0 10.36.0.1 10.39.255.254 10.39.255.255 262,142
11 10.40.0.0/14 10.40.0.0 10.40.0.1 10.43.255.254 10.43.255.255 262,142
12 10.44.0.0/14 10.44.0.0 10.44.0.1 10.47.255.254 10.47.255.255 262,142
13 10.48.0.0/14 10.48.0.0 10.48.0.1 10.51.255.254 10.51.255.255 262,142
14 10.52.0.0/14 10.52.0.0 10.52.0.1 10.55.255.254 10.55.255.255 262,142
15 10.56.0.0/14 10.56.0.0 10.56.0.1 10.59.255.254 10.59.255.255 262,142
16 10.60.0.0/14 10.60.0.0 10.60.0.1 10.63.255.254 10.63.255.255 262,142

FAQ

What is the difference between /10 and /14?

A /10 has 4,194,302 usable hosts and a /14 has 262,142. The subnet masks differ: /10 uses 255.192.0.0 while /14 uses 255.252.0.0. Every additional bit in the prefix halves the number of addresses — so the 4-bit gap means /10 is exactly 16× larger.

How many /14 subnets fit in a /10?

Exactly 16 /14 subnets fit perfectly inside one /10 with no wasted space. To split a /10 into /14s, just increment the last 4 bits of the network address for each new subnet.

Which should I choose?

Choose based on how many hosts you need. Use the hosts → prefix calculator on the homepage to find the right size for your requirements.