11.38.249.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address

11.38.249.0

Broadcast Address

11.38.249.127

Subnet Mask

255.255.255.128

Usable Hosts

126

First Usable IP

11.38.249.1

Last Usable IP

11.38.249.126

Total IPs

128

Prefix Length

/25

Network address — the base address of the block (11.38.249.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 11.38.249.127 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	11.38.249.0/25
Network Address	11.38.249.0
Broadcast Address	11.38.249.127
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	11.38.249.1
Last Usable IP	11.38.249.126
Network (Hex)	0x0B26F900
Broadcast (Hex)	0x0B26F97F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00001011.00100110.11111001 00001011.00100110.11111001.00000000

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 11.38.249.0/25 into 2 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	11.38.249.0/26	11.38.249.0	11.38.249.1	11.38.249.62	11.38.249.63	62
2	11.38.249.64/26	11.38.249.64	11.38.249.65	11.38.249.126	11.38.249.127	62

Split 11.38.249.0/25 into 4 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	11.38.249.0/27	11.38.249.0	11.38.249.1	11.38.249.30	11.38.249.31	30
2	11.38.249.32/27	11.38.249.32	11.38.249.33	11.38.249.62	11.38.249.63	30
3	11.38.249.64/27	11.38.249.64	11.38.249.65	11.38.249.94	11.38.249.95	30
4	11.38.249.96/27	11.38.249.96	11.38.249.97	11.38.249.126	11.38.249.127	30

Split 11.38.249.0/25 into 8 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	11.38.249.0/28	11.38.249.0	11.38.249.1	11.38.249.14	11.38.249.15	14
2	11.38.249.16/28	11.38.249.16	11.38.249.17	11.38.249.30	11.38.249.31	14
3	11.38.249.32/28	11.38.249.32	11.38.249.33	11.38.249.46	11.38.249.47	14
4	11.38.249.48/28	11.38.249.48	11.38.249.49	11.38.249.62	11.38.249.63	14
5	11.38.249.64/28	11.38.249.64	11.38.249.65	11.38.249.78	11.38.249.79	14
6	11.38.249.80/28	11.38.249.80	11.38.249.81	11.38.249.94	11.38.249.95	14
7	11.38.249.96/28	11.38.249.96	11.38.249.97	11.38.249.110	11.38.249.111	14
8	11.38.249.112/28	11.38.249.112	11.38.249.113	11.38.249.126	11.38.249.127	14

Split 11.38.249.0/25 into 16 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	11.38.249.0/29	11.38.249.0	11.38.249.1	11.38.249.6	11.38.249.7	6
2	11.38.249.8/29	11.38.249.8	11.38.249.9	11.38.249.14	11.38.249.15	6
3	11.38.249.16/29	11.38.249.16	11.38.249.17	11.38.249.22	11.38.249.23	6
4	11.38.249.24/29	11.38.249.24	11.38.249.25	11.38.249.30	11.38.249.31	6
5	11.38.249.32/29	11.38.249.32	11.38.249.33	11.38.249.38	11.38.249.39	6
6	11.38.249.40/29	11.38.249.40	11.38.249.41	11.38.249.46	11.38.249.47	6
7	11.38.249.48/29	11.38.249.48	11.38.249.49	11.38.249.54	11.38.249.55	6
8	11.38.249.56/29	11.38.249.56	11.38.249.57	11.38.249.62	11.38.249.63	6
9	11.38.249.64/29	11.38.249.64	11.38.249.65	11.38.249.70	11.38.249.71	6
10	11.38.249.72/29	11.38.249.72	11.38.249.73	11.38.249.78	11.38.249.79	6
11	11.38.249.80/29	11.38.249.80	11.38.249.81	11.38.249.86	11.38.249.87	6
12	11.38.249.88/29	11.38.249.88	11.38.249.89	11.38.249.94	11.38.249.95	6
13	11.38.249.96/29	11.38.249.96	11.38.249.97	11.38.249.102	11.38.249.103	6
14	11.38.249.104/29	11.38.249.104	11.38.249.105	11.38.249.110	11.38.249.111	6
15	11.38.249.112/29	11.38.249.112	11.38.249.113	11.38.249.118	11.38.249.119	6
16	11.38.249.120/29	11.38.249.120	11.38.249.121	11.38.249.126	11.38.249.127	6

IP Address Sample

Showing first 16 of 128 total IPs.

11.38.249.0 net

11.38.249.1

11.38.249.2

11.38.249.3

11.38.249.4

11.38.249.5

11.38.249.6

11.38.249.7

11.38.249.8

11.38.249.9

11.38.249.10

11.38.249.11

11.38.249.12

11.38.249.13

11.38.249.14

11.38.249.15

… 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 11.38.249.0/24 Sibling /25 block 11.38.249.128/25

Adjacent Prefix Sizes

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