100.95.77.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address

100.95.77.0

Broadcast Address

100.95.77.127

Subnet Mask

255.255.255.128

Usable Hosts

126

First Usable IP

100.95.77.1

Last Usable IP

100.95.77.126

Total IPs

128

Prefix Length

/25

Network address — the base address of the block (100.95.77.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 100.95.77.127 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	100.95.77.0/25
Network Address	100.95.77.0
Broadcast Address	100.95.77.127
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	100.95.77.1
Last Usable IP	100.95.77.126
Network (Hex)	0x645F4D00
Broadcast (Hex)	0x645F4D7F
Address Type	Public / Globally Routable

Binary Representation

Network Address

01100100.01011111.01001101 01100100.01011111.01001101.00000000

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 100.95.77.0/25 into 2 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	100.95.77.0/26	100.95.77.0	100.95.77.1	100.95.77.62	100.95.77.63	62
2	100.95.77.64/26	100.95.77.64	100.95.77.65	100.95.77.126	100.95.77.127	62

Split 100.95.77.0/25 into 4 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	100.95.77.0/27	100.95.77.0	100.95.77.1	100.95.77.30	100.95.77.31	30
2	100.95.77.32/27	100.95.77.32	100.95.77.33	100.95.77.62	100.95.77.63	30
3	100.95.77.64/27	100.95.77.64	100.95.77.65	100.95.77.94	100.95.77.95	30
4	100.95.77.96/27	100.95.77.96	100.95.77.97	100.95.77.126	100.95.77.127	30

Split 100.95.77.0/25 into 8 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	100.95.77.0/28	100.95.77.0	100.95.77.1	100.95.77.14	100.95.77.15	14
2	100.95.77.16/28	100.95.77.16	100.95.77.17	100.95.77.30	100.95.77.31	14
3	100.95.77.32/28	100.95.77.32	100.95.77.33	100.95.77.46	100.95.77.47	14
4	100.95.77.48/28	100.95.77.48	100.95.77.49	100.95.77.62	100.95.77.63	14
5	100.95.77.64/28	100.95.77.64	100.95.77.65	100.95.77.78	100.95.77.79	14
6	100.95.77.80/28	100.95.77.80	100.95.77.81	100.95.77.94	100.95.77.95	14
7	100.95.77.96/28	100.95.77.96	100.95.77.97	100.95.77.110	100.95.77.111	14
8	100.95.77.112/28	100.95.77.112	100.95.77.113	100.95.77.126	100.95.77.127	14

Split 100.95.77.0/25 into 16 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	100.95.77.0/29	100.95.77.0	100.95.77.1	100.95.77.6	100.95.77.7	6
2	100.95.77.8/29	100.95.77.8	100.95.77.9	100.95.77.14	100.95.77.15	6
3	100.95.77.16/29	100.95.77.16	100.95.77.17	100.95.77.22	100.95.77.23	6
4	100.95.77.24/29	100.95.77.24	100.95.77.25	100.95.77.30	100.95.77.31	6
5	100.95.77.32/29	100.95.77.32	100.95.77.33	100.95.77.38	100.95.77.39	6
6	100.95.77.40/29	100.95.77.40	100.95.77.41	100.95.77.46	100.95.77.47	6
7	100.95.77.48/29	100.95.77.48	100.95.77.49	100.95.77.54	100.95.77.55	6
8	100.95.77.56/29	100.95.77.56	100.95.77.57	100.95.77.62	100.95.77.63	6
9	100.95.77.64/29	100.95.77.64	100.95.77.65	100.95.77.70	100.95.77.71	6
10	100.95.77.72/29	100.95.77.72	100.95.77.73	100.95.77.78	100.95.77.79	6
11	100.95.77.80/29	100.95.77.80	100.95.77.81	100.95.77.86	100.95.77.87	6
12	100.95.77.88/29	100.95.77.88	100.95.77.89	100.95.77.94	100.95.77.95	6
13	100.95.77.96/29	100.95.77.96	100.95.77.97	100.95.77.102	100.95.77.103	6
14	100.95.77.104/29	100.95.77.104	100.95.77.105	100.95.77.110	100.95.77.111	6
15	100.95.77.112/29	100.95.77.112	100.95.77.113	100.95.77.118	100.95.77.119	6
16	100.95.77.120/29	100.95.77.120	100.95.77.121	100.95.77.126	100.95.77.127	6

IP Address Sample

Showing first 16 of 128 total IPs.

100.95.77.0 net

100.95.77.1

100.95.77.2

100.95.77.3

100.95.77.4

100.95.77.5

100.95.77.6

100.95.77.7

100.95.77.8

100.95.77.9

100.95.77.10

100.95.77.11

100.95.77.12

100.95.77.13

100.95.77.14

100.95.77.15

… 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 100.95.77.0/24 Sibling /25 block 100.95.77.128/25

Adjacent Prefix Sizes

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