222.151.108.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address

222.151.108.0

Broadcast Address

222.151.108.127

Subnet Mask

255.255.255.128

Usable Hosts

126

First Usable IP

222.151.108.1

Last Usable IP

222.151.108.126

Total IPs

128

Prefix Length

/25

Network address — the base address of the block (222.151.108.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 222.151.108.127 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	222.151.108.0/25
Network Address	222.151.108.0
Broadcast Address	222.151.108.127
Subnet Mask	255.255.255.128
Wildcard Mask	0.0.0.127
Prefix Length	/25
IP Address Class	Class C
Total IP Addresses	128
Usable Host Addresses	126
First Usable IP	222.151.108.1
Last Usable IP	222.151.108.126
Network (Hex)	0xDE976C00
Broadcast (Hex)	0xDE976C7F
Address Type	Public / Globally Routable

Binary Representation

Network Address

11011110.10010111.01101100 11011110.10010111.01101100.00000000

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 222.151.108.0/25 into 2 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	222.151.108.0/26	222.151.108.0	222.151.108.1	222.151.108.62	222.151.108.63	62
2	222.151.108.64/26	222.151.108.64	222.151.108.65	222.151.108.126	222.151.108.127	62

Split 222.151.108.0/25 into 4 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	222.151.108.0/27	222.151.108.0	222.151.108.1	222.151.108.30	222.151.108.31	30
2	222.151.108.32/27	222.151.108.32	222.151.108.33	222.151.108.62	222.151.108.63	30
3	222.151.108.64/27	222.151.108.64	222.151.108.65	222.151.108.94	222.151.108.95	30
4	222.151.108.96/27	222.151.108.96	222.151.108.97	222.151.108.126	222.151.108.127	30

Split 222.151.108.0/25 into 8 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	222.151.108.0/28	222.151.108.0	222.151.108.1	222.151.108.14	222.151.108.15	14
2	222.151.108.16/28	222.151.108.16	222.151.108.17	222.151.108.30	222.151.108.31	14
3	222.151.108.32/28	222.151.108.32	222.151.108.33	222.151.108.46	222.151.108.47	14
4	222.151.108.48/28	222.151.108.48	222.151.108.49	222.151.108.62	222.151.108.63	14
5	222.151.108.64/28	222.151.108.64	222.151.108.65	222.151.108.78	222.151.108.79	14
6	222.151.108.80/28	222.151.108.80	222.151.108.81	222.151.108.94	222.151.108.95	14
7	222.151.108.96/28	222.151.108.96	222.151.108.97	222.151.108.110	222.151.108.111	14
8	222.151.108.112/28	222.151.108.112	222.151.108.113	222.151.108.126	222.151.108.127	14

Split 222.151.108.0/25 into 16 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	222.151.108.0/29	222.151.108.0	222.151.108.1	222.151.108.6	222.151.108.7	6
2	222.151.108.8/29	222.151.108.8	222.151.108.9	222.151.108.14	222.151.108.15	6
3	222.151.108.16/29	222.151.108.16	222.151.108.17	222.151.108.22	222.151.108.23	6
4	222.151.108.24/29	222.151.108.24	222.151.108.25	222.151.108.30	222.151.108.31	6
5	222.151.108.32/29	222.151.108.32	222.151.108.33	222.151.108.38	222.151.108.39	6
6	222.151.108.40/29	222.151.108.40	222.151.108.41	222.151.108.46	222.151.108.47	6
7	222.151.108.48/29	222.151.108.48	222.151.108.49	222.151.108.54	222.151.108.55	6
8	222.151.108.56/29	222.151.108.56	222.151.108.57	222.151.108.62	222.151.108.63	6
9	222.151.108.64/29	222.151.108.64	222.151.108.65	222.151.108.70	222.151.108.71	6
10	222.151.108.72/29	222.151.108.72	222.151.108.73	222.151.108.78	222.151.108.79	6
11	222.151.108.80/29	222.151.108.80	222.151.108.81	222.151.108.86	222.151.108.87	6
12	222.151.108.88/29	222.151.108.88	222.151.108.89	222.151.108.94	222.151.108.95	6
13	222.151.108.96/29	222.151.108.96	222.151.108.97	222.151.108.102	222.151.108.103	6
14	222.151.108.104/29	222.151.108.104	222.151.108.105	222.151.108.110	222.151.108.111	6
15	222.151.108.112/29	222.151.108.112	222.151.108.113	222.151.108.118	222.151.108.119	6
16	222.151.108.120/29	222.151.108.120	222.151.108.121	222.151.108.126	222.151.108.127	6

IP Address Sample

Showing first 16 of 128 total IPs.

222.151.108.0 net

222.151.108.1

222.151.108.2

222.151.108.3

222.151.108.4

222.151.108.5

222.151.108.6

222.151.108.7

222.151.108.8

222.151.108.9

222.151.108.10

222.151.108.11

222.151.108.12

222.151.108.13

222.151.108.14

222.151.108.15

… 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 222.151.108.0/24 Sibling /25 block 222.151.108.128/25

Adjacent Prefix Sizes

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