56.124.2.128/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address

56.124.2.128

Broadcast Address

56.124.2.255

Subnet Mask

255.255.255.128

Usable Hosts

126

First Usable IP

56.124.2.129

Last Usable IP

56.124.2.254

Total IPs

128

Prefix Length

/25

Network address — the base address of the block (56.124.2.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 56.124.2.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	56.124.2.128/25
Network Address	56.124.2.128
Broadcast Address	56.124.2.255
Subnet Mask	255.255.255.128
Wildcard Mask	0.0.0.127
Prefix Length	/25
IP Address Class	Class A
Total IP Addresses	128
Usable Host Addresses	126
First Usable IP	56.124.2.129
Last Usable IP	56.124.2.254
Network (Hex)	0x387C0280
Broadcast (Hex)	0x387C02FF
Address Type	Public / Globally Routable

Binary Representation

Network Address

00111000.01111100.00000010 00111000.01111100.00000010.10000000

Subnet Mask

11111111.11111111.11111111.10000000

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

Split into Equal Subnets

Split 56.124.2.128/25 into 2 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	56.124.2.128/26	56.124.2.128	56.124.2.129	56.124.2.190	56.124.2.191	62
2	56.124.2.192/26	56.124.2.192	56.124.2.193	56.124.2.254	56.124.2.255	62

Split 56.124.2.128/25 into 4 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	56.124.2.128/27	56.124.2.128	56.124.2.129	56.124.2.158	56.124.2.159	30
2	56.124.2.160/27	56.124.2.160	56.124.2.161	56.124.2.190	56.124.2.191	30
3	56.124.2.192/27	56.124.2.192	56.124.2.193	56.124.2.222	56.124.2.223	30
4	56.124.2.224/27	56.124.2.224	56.124.2.225	56.124.2.254	56.124.2.255	30

Split 56.124.2.128/25 into 8 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	56.124.2.128/28	56.124.2.128	56.124.2.129	56.124.2.142	56.124.2.143	14
2	56.124.2.144/28	56.124.2.144	56.124.2.145	56.124.2.158	56.124.2.159	14
3	56.124.2.160/28	56.124.2.160	56.124.2.161	56.124.2.174	56.124.2.175	14
4	56.124.2.176/28	56.124.2.176	56.124.2.177	56.124.2.190	56.124.2.191	14
5	56.124.2.192/28	56.124.2.192	56.124.2.193	56.124.2.206	56.124.2.207	14
6	56.124.2.208/28	56.124.2.208	56.124.2.209	56.124.2.222	56.124.2.223	14
7	56.124.2.224/28	56.124.2.224	56.124.2.225	56.124.2.238	56.124.2.239	14
8	56.124.2.240/28	56.124.2.240	56.124.2.241	56.124.2.254	56.124.2.255	14

Split 56.124.2.128/25 into 16 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	56.124.2.128/29	56.124.2.128	56.124.2.129	56.124.2.134	56.124.2.135	6
2	56.124.2.136/29	56.124.2.136	56.124.2.137	56.124.2.142	56.124.2.143	6
3	56.124.2.144/29	56.124.2.144	56.124.2.145	56.124.2.150	56.124.2.151	6
4	56.124.2.152/29	56.124.2.152	56.124.2.153	56.124.2.158	56.124.2.159	6
5	56.124.2.160/29	56.124.2.160	56.124.2.161	56.124.2.166	56.124.2.167	6
6	56.124.2.168/29	56.124.2.168	56.124.2.169	56.124.2.174	56.124.2.175	6
7	56.124.2.176/29	56.124.2.176	56.124.2.177	56.124.2.182	56.124.2.183	6
8	56.124.2.184/29	56.124.2.184	56.124.2.185	56.124.2.190	56.124.2.191	6
9	56.124.2.192/29	56.124.2.192	56.124.2.193	56.124.2.198	56.124.2.199	6
10	56.124.2.200/29	56.124.2.200	56.124.2.201	56.124.2.206	56.124.2.207	6
11	56.124.2.208/29	56.124.2.208	56.124.2.209	56.124.2.214	56.124.2.215	6
12	56.124.2.216/29	56.124.2.216	56.124.2.217	56.124.2.222	56.124.2.223	6
13	56.124.2.224/29	56.124.2.224	56.124.2.225	56.124.2.230	56.124.2.231	6
14	56.124.2.232/29	56.124.2.232	56.124.2.233	56.124.2.238	56.124.2.239	6
15	56.124.2.240/29	56.124.2.240	56.124.2.241	56.124.2.246	56.124.2.247	6
16	56.124.2.248/29	56.124.2.248	56.124.2.249	56.124.2.254	56.124.2.255	6

IP Address Sample

Showing first 16 of 128 total IPs.

56.124.2.128 net

56.124.2.129

56.124.2.130

56.124.2.131

56.124.2.132

56.124.2.133

56.124.2.134

56.124.2.135

56.124.2.136

56.124.2.137

56.124.2.138

56.124.2.139

56.124.2.140

56.124.2.141

56.124.2.142

56.124.2.143

… 112 more IPs …

/25 Subnet Reference

Total IPs 128

Usable Hosts 126

Subnet Mask 255.255.255.128

Wildcard 0.0.0.127

Full /25 reference →

Related Ranges

Parent /24 block 56.124.2.0/24 Sibling /25 block 56.124.2.0/25

Adjacent Prefix Sizes

/23 510 hosts /24 254 hosts /25 126 hosts /26 62 hosts /27 30 hosts