32.0.0.0/7

Public

Class A — /7 prefix — 33,554,430 usable hosts

Network Address

32.0.0.0

Broadcast Address

33.255.255.255

Subnet Mask

254.0.0.0

Usable Hosts

33,554,430

First Usable IP

32.0.0.1

Last Usable IP

33.255.255.254

Total IPs

33,554,432

Prefix Length

Network address — the base address of the block (32.0.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 33.255.255.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 33,554,430 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 254.0.0.0 is the dotted-decimal equivalent of /7. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	32.0.0.0/7
Network Address	32.0.0.0
Broadcast Address	33.255.255.255
Subnet Mask	254.0.0.0
Wildcard Mask	1.255.255.255
Prefix Length	/7
IP Address Class	Class A
Total IP Addresses	33,554,432
Usable Host Addresses	33,554,430
First Usable IP	32.0.0.1
Last Usable IP	33.255.255.254
Network (Hex)	0x20000000
Broadcast (Hex)	0x21FFFFFF
Address Type	Public / Globally Routable

Binary Representation

Network Address

001000 00100000.00000000.00000000.00000000

Subnet Mask

11111110.00000000.00000000.00000000

The first 7 bits (1s in the mask) identify the network. The remaining 25 bits identify hosts within the network.

Split into Equal Subnets

Split 32.0.0.0/7 into 2 equal /8 subnets (16,777,214 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	32.0.0.0/8	32.0.0.0	32.0.0.1	32.255.255.254	32.255.255.255	16,777,214
2	33.0.0.0/8	33.0.0.0	33.0.0.1	33.255.255.254	33.255.255.255	16,777,214

Split 32.0.0.0/7 into 4 equal /9 subnets (8,388,606 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	32.0.0.0/9	32.0.0.0	32.0.0.1	32.127.255.254	32.127.255.255	8,388,606
2	32.128.0.0/9	32.128.0.0	32.128.0.1	32.255.255.254	32.255.255.255	8,388,606
3	33.0.0.0/9	33.0.0.0	33.0.0.1	33.127.255.254	33.127.255.255	8,388,606
4	33.128.0.0/9	33.128.0.0	33.128.0.1	33.255.255.254	33.255.255.255	8,388,606

Split 32.0.0.0/7 into 8 equal /10 subnets (4,194,302 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	32.0.0.0/10	32.0.0.0	32.0.0.1	32.63.255.254	32.63.255.255	4,194,302
2	32.64.0.0/10	32.64.0.0	32.64.0.1	32.127.255.254	32.127.255.255	4,194,302
3	32.128.0.0/10	32.128.0.0	32.128.0.1	32.191.255.254	32.191.255.255	4,194,302
4	32.192.0.0/10	32.192.0.0	32.192.0.1	32.255.255.254	32.255.255.255	4,194,302
5	33.0.0.0/10	33.0.0.0	33.0.0.1	33.63.255.254	33.63.255.255	4,194,302
6	33.64.0.0/10	33.64.0.0	33.64.0.1	33.127.255.254	33.127.255.255	4,194,302
7	33.128.0.0/10	33.128.0.0	33.128.0.1	33.191.255.254	33.191.255.255	4,194,302
8	33.192.0.0/10	33.192.0.0	33.192.0.1	33.255.255.254	33.255.255.255	4,194,302

Split 32.0.0.0/7 into 16 equal /11 subnets (2,097,150 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	32.0.0.0/11	32.0.0.0	32.0.0.1	32.31.255.254	32.31.255.255	2,097,150
2	32.32.0.0/11	32.32.0.0	32.32.0.1	32.63.255.254	32.63.255.255	2,097,150
3	32.64.0.0/11	32.64.0.0	32.64.0.1	32.95.255.254	32.95.255.255	2,097,150
4	32.96.0.0/11	32.96.0.0	32.96.0.1	32.127.255.254	32.127.255.255	2,097,150
5	32.128.0.0/11	32.128.0.0	32.128.0.1	32.159.255.254	32.159.255.255	2,097,150
6	32.160.0.0/11	32.160.0.0	32.160.0.1	32.191.255.254	32.191.255.255	2,097,150
7	32.192.0.0/11	32.192.0.0	32.192.0.1	32.223.255.254	32.223.255.255	2,097,150
8	32.224.0.0/11	32.224.0.0	32.224.0.1	32.255.255.254	32.255.255.255	2,097,150
9	33.0.0.0/11	33.0.0.0	33.0.0.1	33.31.255.254	33.31.255.255	2,097,150
10	33.32.0.0/11	33.32.0.0	33.32.0.1	33.63.255.254	33.63.255.255	2,097,150
11	33.64.0.0/11	33.64.0.0	33.64.0.1	33.95.255.254	33.95.255.255	2,097,150
12	33.96.0.0/11	33.96.0.0	33.96.0.1	33.127.255.254	33.127.255.255	2,097,150
13	33.128.0.0/11	33.128.0.0	33.128.0.1	33.159.255.254	33.159.255.255	2,097,150
14	33.160.0.0/11	33.160.0.0	33.160.0.1	33.191.255.254	33.191.255.255	2,097,150
15	33.192.0.0/11	33.192.0.0	33.192.0.1	33.223.255.254	33.223.255.255	2,097,150
16	33.224.0.0/11	33.224.0.0	33.224.0.1	33.255.255.254	33.255.255.255	2,097,150

/7 Subnet Reference

Total IPs 33,554,432

Usable Hosts 33,554,430

Subnet Mask 254.0.0.0

Wildcard 1.255.255.255

Full /7 reference →

Related Ranges

Parent /6 block 32.0.0.0/6 Sibling /7 block 34.0.0.0/7

Adjacent Prefix Sizes

/5 134,217,726 hosts /6 67,108,862 hosts /7 33,554,430 hosts /8 16,777,214 hosts /9 8,388,606 hosts