39.2.48.0/23

Public

Class A — /23 prefix — 510 usable hosts

Network Address

39.2.48.0

Broadcast Address

39.2.49.255

Subnet Mask

255.255.254.0

Usable Hosts

510

First Usable IP

39.2.48.1

Last Usable IP

39.2.49.254

Total IPs

512

Prefix Length

/23

Network address — the base address of the block (39.2.48.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 39.2.49.255 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	39.2.48.0/23
Network Address	39.2.48.0
Broadcast Address	39.2.49.255
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	39.2.48.1
Last Usable IP	39.2.49.254
Network (Hex)	0x27023000
Broadcast (Hex)	0x270231FF
Address Type	Public / Globally Routable

Binary Representation

Network Address

00100111.00000010 00100111.00000010.00110000.00000000

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 39.2.48.0/23 into 2 equal /24 subnets (254 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.2.48.0/24	39.2.48.0	39.2.48.1	39.2.48.254	39.2.48.255	254
2	39.2.49.0/24	39.2.49.0	39.2.49.1	39.2.49.254	39.2.49.255	254

Split 39.2.48.0/23 into 4 equal /25 subnets (126 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.2.48.0/25	39.2.48.0	39.2.48.1	39.2.48.126	39.2.48.127	126
2	39.2.48.128/25	39.2.48.128	39.2.48.129	39.2.48.254	39.2.48.255	126
3	39.2.49.0/25	39.2.49.0	39.2.49.1	39.2.49.126	39.2.49.127	126
4	39.2.49.128/25	39.2.49.128	39.2.49.129	39.2.49.254	39.2.49.255	126

Split 39.2.48.0/23 into 8 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.2.48.0/26	39.2.48.0	39.2.48.1	39.2.48.62	39.2.48.63	62
2	39.2.48.64/26	39.2.48.64	39.2.48.65	39.2.48.126	39.2.48.127	62
3	39.2.48.128/26	39.2.48.128	39.2.48.129	39.2.48.190	39.2.48.191	62
4	39.2.48.192/26	39.2.48.192	39.2.48.193	39.2.48.254	39.2.48.255	62
5	39.2.49.0/26	39.2.49.0	39.2.49.1	39.2.49.62	39.2.49.63	62
6	39.2.49.64/26	39.2.49.64	39.2.49.65	39.2.49.126	39.2.49.127	62
7	39.2.49.128/26	39.2.49.128	39.2.49.129	39.2.49.190	39.2.49.191	62
8	39.2.49.192/26	39.2.49.192	39.2.49.193	39.2.49.254	39.2.49.255	62

Split 39.2.48.0/23 into 16 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.2.48.0/27	39.2.48.0	39.2.48.1	39.2.48.30	39.2.48.31	30
2	39.2.48.32/27	39.2.48.32	39.2.48.33	39.2.48.62	39.2.48.63	30
3	39.2.48.64/27	39.2.48.64	39.2.48.65	39.2.48.94	39.2.48.95	30
4	39.2.48.96/27	39.2.48.96	39.2.48.97	39.2.48.126	39.2.48.127	30
5	39.2.48.128/27	39.2.48.128	39.2.48.129	39.2.48.158	39.2.48.159	30
6	39.2.48.160/27	39.2.48.160	39.2.48.161	39.2.48.190	39.2.48.191	30
7	39.2.48.192/27	39.2.48.192	39.2.48.193	39.2.48.222	39.2.48.223	30
8	39.2.48.224/27	39.2.48.224	39.2.48.225	39.2.48.254	39.2.48.255	30
9	39.2.49.0/27	39.2.49.0	39.2.49.1	39.2.49.30	39.2.49.31	30
10	39.2.49.32/27	39.2.49.32	39.2.49.33	39.2.49.62	39.2.49.63	30
11	39.2.49.64/27	39.2.49.64	39.2.49.65	39.2.49.94	39.2.49.95	30
12	39.2.49.96/27	39.2.49.96	39.2.49.97	39.2.49.126	39.2.49.127	30
13	39.2.49.128/27	39.2.49.128	39.2.49.129	39.2.49.158	39.2.49.159	30
14	39.2.49.160/27	39.2.49.160	39.2.49.161	39.2.49.190	39.2.49.191	30
15	39.2.49.192/27	39.2.49.192	39.2.49.193	39.2.49.222	39.2.49.223	30
16	39.2.49.224/27	39.2.49.224	39.2.49.225	39.2.49.254	39.2.49.255	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 39.2.48.0/22 Sibling /23 block 39.2.50.0/23

Adjacent Prefix Sizes

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