31.192.0.0/10

Public

Class A — /10 prefix — 4,194,302 usable hosts

Network Address

31.192.0.0

Broadcast Address

31.255.255.255

Subnet Mask

255.192.0.0

Usable Hosts

4,194,302

First Usable IP

31.192.0.1

Last Usable IP

31.255.255.254

Total IPs

4,194,304

Prefix Length

/10

Network address — the base address of the block (31.192.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 31.255.255.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 4,194,302 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.192.0.0 is the dotted-decimal equivalent of /10. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	31.192.0.0/10
Network Address	31.192.0.0
Broadcast Address	31.255.255.255
Subnet Mask	255.192.0.0
Wildcard Mask	0.63.255.255
Prefix Length	/10
IP Address Class	Class A
Total IP Addresses	4,194,304
Usable Host Addresses	4,194,302
First Usable IP	31.192.0.1
Last Usable IP	31.255.255.254
Network (Hex)	0x1FC00000
Broadcast (Hex)	0x1FFFFFFF
Address Type	Public / Globally Routable

Binary Representation

Network Address

00011111 00011111.11000000.00000000.00000000

Subnet Mask

11111111.11000000.00000000.00000000

The first 10 bits (1s in the mask) identify the network. The remaining 22 bits identify hosts within the network.

Split into Equal Subnets

Split 31.192.0.0/10 into 2 equal /11 subnets (2,097,150 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	31.192.0.0/11	31.192.0.0	31.192.0.1	31.223.255.254	31.223.255.255	2,097,150
2	31.224.0.0/11	31.224.0.0	31.224.0.1	31.255.255.254	31.255.255.255	2,097,150

Split 31.192.0.0/10 into 4 equal /12 subnets (1,048,574 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	31.192.0.0/12	31.192.0.0	31.192.0.1	31.207.255.254	31.207.255.255	1,048,574
2	31.208.0.0/12	31.208.0.0	31.208.0.1	31.223.255.254	31.223.255.255	1,048,574
3	31.224.0.0/12	31.224.0.0	31.224.0.1	31.239.255.254	31.239.255.255	1,048,574
4	31.240.0.0/12	31.240.0.0	31.240.0.1	31.255.255.254	31.255.255.255	1,048,574

Split 31.192.0.0/10 into 8 equal /13 subnets (524,286 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	31.192.0.0/13	31.192.0.0	31.192.0.1	31.199.255.254	31.199.255.255	524,286
2	31.200.0.0/13	31.200.0.0	31.200.0.1	31.207.255.254	31.207.255.255	524,286
3	31.208.0.0/13	31.208.0.0	31.208.0.1	31.215.255.254	31.215.255.255	524,286
4	31.216.0.0/13	31.216.0.0	31.216.0.1	31.223.255.254	31.223.255.255	524,286
5	31.224.0.0/13	31.224.0.0	31.224.0.1	31.231.255.254	31.231.255.255	524,286
6	31.232.0.0/13	31.232.0.0	31.232.0.1	31.239.255.254	31.239.255.255	524,286
7	31.240.0.0/13	31.240.0.0	31.240.0.1	31.247.255.254	31.247.255.255	524,286
8	31.248.0.0/13	31.248.0.0	31.248.0.1	31.255.255.254	31.255.255.255	524,286

Split 31.192.0.0/10 into 16 equal /14 subnets (262,142 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	31.192.0.0/14	31.192.0.0	31.192.0.1	31.195.255.254	31.195.255.255	262,142
2	31.196.0.0/14	31.196.0.0	31.196.0.1	31.199.255.254	31.199.255.255	262,142
3	31.200.0.0/14	31.200.0.0	31.200.0.1	31.203.255.254	31.203.255.255	262,142
4	31.204.0.0/14	31.204.0.0	31.204.0.1	31.207.255.254	31.207.255.255	262,142
5	31.208.0.0/14	31.208.0.0	31.208.0.1	31.211.255.254	31.211.255.255	262,142
6	31.212.0.0/14	31.212.0.0	31.212.0.1	31.215.255.254	31.215.255.255	262,142
7	31.216.0.0/14	31.216.0.0	31.216.0.1	31.219.255.254	31.219.255.255	262,142
8	31.220.0.0/14	31.220.0.0	31.220.0.1	31.223.255.254	31.223.255.255	262,142
9	31.224.0.0/14	31.224.0.0	31.224.0.1	31.227.255.254	31.227.255.255	262,142
10	31.228.0.0/14	31.228.0.0	31.228.0.1	31.231.255.254	31.231.255.255	262,142
11	31.232.0.0/14	31.232.0.0	31.232.0.1	31.235.255.254	31.235.255.255	262,142
12	31.236.0.0/14	31.236.0.0	31.236.0.1	31.239.255.254	31.239.255.255	262,142
13	31.240.0.0/14	31.240.0.0	31.240.0.1	31.243.255.254	31.243.255.255	262,142
14	31.244.0.0/14	31.244.0.0	31.244.0.1	31.247.255.254	31.247.255.255	262,142
15	31.248.0.0/14	31.248.0.0	31.248.0.1	31.251.255.254	31.251.255.255	262,142
16	31.252.0.0/14	31.252.0.0	31.252.0.1	31.255.255.254	31.255.255.255	262,142

/10 Subnet Reference

Total IPs 4,194,304

Usable Hosts 4,194,302

Subnet Mask 255.192.0.0

Wildcard 0.63.255.255

Full /10 reference →

Related Ranges

Parent /9 block 31.128.0.0/9 Sibling /10 block 31.128.0.0/10

Adjacent Prefix Sizes

/8 16,777,214 hosts /9 8,388,606 hosts /10 4,194,302 hosts /11 2,097,150 hosts /12 1,048,574 hosts