59.158.172.0/23

Public

Class A — /23 prefix — 510 usable hosts

Network Address

59.158.172.0

Broadcast Address

59.158.173.255

Subnet Mask

255.255.254.0

Usable Hosts

510

First Usable IP

59.158.172.1

Last Usable IP

59.158.173.254

Total IPs

512

Prefix Length

/23

Network address — the base address of the block (59.158.172.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 59.158.173.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 510 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.255.254.0 is the dotted-decimal equivalent of /23. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	59.158.172.0/23
Network Address	59.158.172.0
Broadcast Address	59.158.173.255
Subnet Mask	255.255.254.0
Wildcard Mask	0.0.1.255
Prefix Length	/23
IP Address Class	Class A
Total IP Addresses	512
Usable Host Addresses	510
First Usable IP	59.158.172.1
Last Usable IP	59.158.173.254
Network (Hex)	0x3B9EAC00
Broadcast (Hex)	0x3B9EADFF
Address Type	Public / Globally Routable

Binary Representation

Network Address

00111011.10011110 00111011.10011110.10101100.00000000

Subnet Mask

11111111.11111111.11111110.00000000

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

Split into Equal Subnets

Split 59.158.172.0/23 into 2 equal /24 subnets (254 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.158.172.0/24	59.158.172.0	59.158.172.1	59.158.172.254	59.158.172.255	254
2	59.158.173.0/24	59.158.173.0	59.158.173.1	59.158.173.254	59.158.173.255	254

Split 59.158.172.0/23 into 4 equal /25 subnets (126 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.158.172.0/25	59.158.172.0	59.158.172.1	59.158.172.126	59.158.172.127	126
2	59.158.172.128/25	59.158.172.128	59.158.172.129	59.158.172.254	59.158.172.255	126
3	59.158.173.0/25	59.158.173.0	59.158.173.1	59.158.173.126	59.158.173.127	126
4	59.158.173.128/25	59.158.173.128	59.158.173.129	59.158.173.254	59.158.173.255	126

Split 59.158.172.0/23 into 8 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.158.172.0/26	59.158.172.0	59.158.172.1	59.158.172.62	59.158.172.63	62
2	59.158.172.64/26	59.158.172.64	59.158.172.65	59.158.172.126	59.158.172.127	62
3	59.158.172.128/26	59.158.172.128	59.158.172.129	59.158.172.190	59.158.172.191	62
4	59.158.172.192/26	59.158.172.192	59.158.172.193	59.158.172.254	59.158.172.255	62
5	59.158.173.0/26	59.158.173.0	59.158.173.1	59.158.173.62	59.158.173.63	62
6	59.158.173.64/26	59.158.173.64	59.158.173.65	59.158.173.126	59.158.173.127	62
7	59.158.173.128/26	59.158.173.128	59.158.173.129	59.158.173.190	59.158.173.191	62
8	59.158.173.192/26	59.158.173.192	59.158.173.193	59.158.173.254	59.158.173.255	62

Split 59.158.172.0/23 into 16 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	59.158.172.0/27	59.158.172.0	59.158.172.1	59.158.172.30	59.158.172.31	30
2	59.158.172.32/27	59.158.172.32	59.158.172.33	59.158.172.62	59.158.172.63	30
3	59.158.172.64/27	59.158.172.64	59.158.172.65	59.158.172.94	59.158.172.95	30
4	59.158.172.96/27	59.158.172.96	59.158.172.97	59.158.172.126	59.158.172.127	30
5	59.158.172.128/27	59.158.172.128	59.158.172.129	59.158.172.158	59.158.172.159	30
6	59.158.172.160/27	59.158.172.160	59.158.172.161	59.158.172.190	59.158.172.191	30
7	59.158.172.192/27	59.158.172.192	59.158.172.193	59.158.172.222	59.158.172.223	30
8	59.158.172.224/27	59.158.172.224	59.158.172.225	59.158.172.254	59.158.172.255	30
9	59.158.173.0/27	59.158.173.0	59.158.173.1	59.158.173.30	59.158.173.31	30
10	59.158.173.32/27	59.158.173.32	59.158.173.33	59.158.173.62	59.158.173.63	30
11	59.158.173.64/27	59.158.173.64	59.158.173.65	59.158.173.94	59.158.173.95	30
12	59.158.173.96/27	59.158.173.96	59.158.173.97	59.158.173.126	59.158.173.127	30
13	59.158.173.128/27	59.158.173.128	59.158.173.129	59.158.173.158	59.158.173.159	30
14	59.158.173.160/27	59.158.173.160	59.158.173.161	59.158.173.190	59.158.173.191	30
15	59.158.173.192/27	59.158.173.192	59.158.173.193	59.158.173.222	59.158.173.223	30
16	59.158.173.224/27	59.158.173.224	59.158.173.225	59.158.173.254	59.158.173.255	30

/23 Subnet Reference

Total IPs 512

Usable Hosts 510

Subnet Mask 255.255.254.0

Wildcard 0.0.1.255

Full /23 reference →

Related Ranges

Parent /22 block 59.158.172.0/22 Sibling /23 block 59.158.174.0/23

Adjacent Prefix Sizes

/21 2,046 hosts /22 1,022 hosts /23 510 hosts /24 254 hosts /25 126 hosts