59.128.0.0/9

Public

Class A — /9 prefix — 8,388,606 usable hosts

Network Address

59.128.0.0

Broadcast Address

59.255.255.255

Subnet Mask

255.128.0.0

Usable Hosts

8,388,606

First Usable IP

59.128.0.1

Last Usable IP

59.255.255.254

Total IPs

8,388,608

Prefix Length

Network address — the base address of the block (59.128.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 59.255.255.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 8,388,606 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.128.0.0 is the dotted-decimal equivalent of /9. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	59.128.0.0/9
Network Address	59.128.0.0
Broadcast Address	59.255.255.255
Subnet Mask	255.128.0.0
Wildcard Mask	0.127.255.255
Prefix Length	/9
IP Address Class	Class A
Total IP Addresses	8,388,608
Usable Host Addresses	8,388,606
First Usable IP	59.128.0.1
Last Usable IP	59.255.255.254
Network (Hex)	0x3B800000
Broadcast (Hex)	0x3BFFFFFF
Address Type	Public / Globally Routable

Binary Representation

Network Address

00111011 00111011.10000000.00000000.00000000

Subnet Mask

11111111.10000000.00000000.00000000

The first 9 bits (1s in the mask) identify the network. The remaining 23 bits identify hosts within the network.

Split into Equal Subnets

Split 59.128.0.0/9 into 2 equal /10 subnets (4,194,302 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.128.0.0/10	59.128.0.0	59.128.0.1	59.191.255.254	59.191.255.255	4,194,302
2	59.192.0.0/10	59.192.0.0	59.192.0.1	59.255.255.254	59.255.255.255	4,194,302

Split 59.128.0.0/9 into 4 equal /11 subnets (2,097,150 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.128.0.0/11	59.128.0.0	59.128.0.1	59.159.255.254	59.159.255.255	2,097,150
2	59.160.0.0/11	59.160.0.0	59.160.0.1	59.191.255.254	59.191.255.255	2,097,150
3	59.192.0.0/11	59.192.0.0	59.192.0.1	59.223.255.254	59.223.255.255	2,097,150
4	59.224.0.0/11	59.224.0.0	59.224.0.1	59.255.255.254	59.255.255.255	2,097,150

Split 59.128.0.0/9 into 8 equal /12 subnets (1,048,574 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.128.0.0/12	59.128.0.0	59.128.0.1	59.143.255.254	59.143.255.255	1,048,574
2	59.144.0.0/12	59.144.0.0	59.144.0.1	59.159.255.254	59.159.255.255	1,048,574
3	59.160.0.0/12	59.160.0.0	59.160.0.1	59.175.255.254	59.175.255.255	1,048,574
4	59.176.0.0/12	59.176.0.0	59.176.0.1	59.191.255.254	59.191.255.255	1,048,574
5	59.192.0.0/12	59.192.0.0	59.192.0.1	59.207.255.254	59.207.255.255	1,048,574
6	59.208.0.0/12	59.208.0.0	59.208.0.1	59.223.255.254	59.223.255.255	1,048,574
7	59.224.0.0/12	59.224.0.0	59.224.0.1	59.239.255.254	59.239.255.255	1,048,574
8	59.240.0.0/12	59.240.0.0	59.240.0.1	59.255.255.254	59.255.255.255	1,048,574

Split 59.128.0.0/9 into 16 equal /13 subnets (524,286 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.128.0.0/13	59.128.0.0	59.128.0.1	59.135.255.254	59.135.255.255	524,286
2	59.136.0.0/13	59.136.0.0	59.136.0.1	59.143.255.254	59.143.255.255	524,286
3	59.144.0.0/13	59.144.0.0	59.144.0.1	59.151.255.254	59.151.255.255	524,286
4	59.152.0.0/13	59.152.0.0	59.152.0.1	59.159.255.254	59.159.255.255	524,286
5	59.160.0.0/13	59.160.0.0	59.160.0.1	59.167.255.254	59.167.255.255	524,286
6	59.168.0.0/13	59.168.0.0	59.168.0.1	59.175.255.254	59.175.255.255	524,286
7	59.176.0.0/13	59.176.0.0	59.176.0.1	59.183.255.254	59.183.255.255	524,286
8	59.184.0.0/13	59.184.0.0	59.184.0.1	59.191.255.254	59.191.255.255	524,286
9	59.192.0.0/13	59.192.0.0	59.192.0.1	59.199.255.254	59.199.255.255	524,286
10	59.200.0.0/13	59.200.0.0	59.200.0.1	59.207.255.254	59.207.255.255	524,286
11	59.208.0.0/13	59.208.0.0	59.208.0.1	59.215.255.254	59.215.255.255	524,286
12	59.216.0.0/13	59.216.0.0	59.216.0.1	59.223.255.254	59.223.255.255	524,286
13	59.224.0.0/13	59.224.0.0	59.224.0.1	59.231.255.254	59.231.255.255	524,286
14	59.232.0.0/13	59.232.0.0	59.232.0.1	59.239.255.254	59.239.255.255	524,286
15	59.240.0.0/13	59.240.0.0	59.240.0.1	59.247.255.254	59.247.255.255	524,286
16	59.248.0.0/13	59.248.0.0	59.248.0.1	59.255.255.254	59.255.255.255	524,286

/9 Subnet Reference

Total IPs 8,388,608

Usable Hosts 8,388,606

Subnet Mask 255.128.0.0

Wildcard 0.127.255.255

Full /9 reference →

Related Ranges

Parent /8 block 59.0.0.0/8 Sibling /9 block 59.0.0.0/9

Adjacent Prefix Sizes

/7 33,554,430 hosts /8 16,777,214 hosts /9 8,388,606 hosts /10 4,194,302 hosts /11 2,097,150 hosts