204.72.141.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address

204.72.141.0

Broadcast Address

204.72.141.127

Subnet Mask

255.255.255.128

Usable Hosts

126

First Usable IP

204.72.141.1

Last Usable IP

204.72.141.126

Total IPs

128

Prefix Length

/25

Network address — the base address of the block (204.72.141.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 204.72.141.127 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	204.72.141.0/25
Network Address	204.72.141.0
Broadcast Address	204.72.141.127
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	204.72.141.1
Last Usable IP	204.72.141.126
Network (Hex)	0xCC488D00
Broadcast (Hex)	0xCC488D7F
Address Type	Public / Globally Routable

Binary Representation

Network Address

11001100.01001000.10001101 11001100.01001000.10001101.00000000

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 204.72.141.0/25 into 2 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	204.72.141.0/26	204.72.141.0	204.72.141.1	204.72.141.62	204.72.141.63	62
2	204.72.141.64/26	204.72.141.64	204.72.141.65	204.72.141.126	204.72.141.127	62

Split 204.72.141.0/25 into 4 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	204.72.141.0/27	204.72.141.0	204.72.141.1	204.72.141.30	204.72.141.31	30
2	204.72.141.32/27	204.72.141.32	204.72.141.33	204.72.141.62	204.72.141.63	30
3	204.72.141.64/27	204.72.141.64	204.72.141.65	204.72.141.94	204.72.141.95	30
4	204.72.141.96/27	204.72.141.96	204.72.141.97	204.72.141.126	204.72.141.127	30

Split 204.72.141.0/25 into 8 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	204.72.141.0/28	204.72.141.0	204.72.141.1	204.72.141.14	204.72.141.15	14
2	204.72.141.16/28	204.72.141.16	204.72.141.17	204.72.141.30	204.72.141.31	14
3	204.72.141.32/28	204.72.141.32	204.72.141.33	204.72.141.46	204.72.141.47	14
4	204.72.141.48/28	204.72.141.48	204.72.141.49	204.72.141.62	204.72.141.63	14
5	204.72.141.64/28	204.72.141.64	204.72.141.65	204.72.141.78	204.72.141.79	14
6	204.72.141.80/28	204.72.141.80	204.72.141.81	204.72.141.94	204.72.141.95	14
7	204.72.141.96/28	204.72.141.96	204.72.141.97	204.72.141.110	204.72.141.111	14
8	204.72.141.112/28	204.72.141.112	204.72.141.113	204.72.141.126	204.72.141.127	14

Split 204.72.141.0/25 into 16 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	204.72.141.0/29	204.72.141.0	204.72.141.1	204.72.141.6	204.72.141.7	6
2	204.72.141.8/29	204.72.141.8	204.72.141.9	204.72.141.14	204.72.141.15	6
3	204.72.141.16/29	204.72.141.16	204.72.141.17	204.72.141.22	204.72.141.23	6
4	204.72.141.24/29	204.72.141.24	204.72.141.25	204.72.141.30	204.72.141.31	6
5	204.72.141.32/29	204.72.141.32	204.72.141.33	204.72.141.38	204.72.141.39	6
6	204.72.141.40/29	204.72.141.40	204.72.141.41	204.72.141.46	204.72.141.47	6
7	204.72.141.48/29	204.72.141.48	204.72.141.49	204.72.141.54	204.72.141.55	6
8	204.72.141.56/29	204.72.141.56	204.72.141.57	204.72.141.62	204.72.141.63	6
9	204.72.141.64/29	204.72.141.64	204.72.141.65	204.72.141.70	204.72.141.71	6
10	204.72.141.72/29	204.72.141.72	204.72.141.73	204.72.141.78	204.72.141.79	6
11	204.72.141.80/29	204.72.141.80	204.72.141.81	204.72.141.86	204.72.141.87	6
12	204.72.141.88/29	204.72.141.88	204.72.141.89	204.72.141.94	204.72.141.95	6
13	204.72.141.96/29	204.72.141.96	204.72.141.97	204.72.141.102	204.72.141.103	6
14	204.72.141.104/29	204.72.141.104	204.72.141.105	204.72.141.110	204.72.141.111	6
15	204.72.141.112/29	204.72.141.112	204.72.141.113	204.72.141.118	204.72.141.119	6
16	204.72.141.120/29	204.72.141.120	204.72.141.121	204.72.141.126	204.72.141.127	6

IP Address Sample

Showing first 16 of 128 total IPs.

204.72.141.0 net

204.72.141.1

204.72.141.2

204.72.141.3

204.72.141.4

204.72.141.5

204.72.141.6

204.72.141.7

204.72.141.8

204.72.141.9

204.72.141.10

204.72.141.11

204.72.141.12

204.72.141.13

204.72.141.14

204.72.141.15

… 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 204.72.141.0/24 Sibling /25 block 204.72.141.128/25

Adjacent Prefix Sizes

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