28.109.75.64/26

Public

Class A — /26 prefix — 62 usable hosts

Network Address

28.109.75.64

Broadcast Address

28.109.75.127

Subnet Mask

255.255.255.192

Usable Hosts

First Usable IP

28.109.75.65

Last Usable IP

28.109.75.126

Total IPs

Prefix Length

/26

Network address — the base address of the block (28.109.75.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 28.109.75.127 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	28.109.75.64/26
Network Address	28.109.75.64
Broadcast Address	28.109.75.127
Subnet Mask	255.255.255.192
Wildcard Mask	0.0.0.63
Prefix Length	/26
IP Address Class	Class A
Total IP Addresses	64
Usable Host Addresses	62
First Usable IP	28.109.75.65
Last Usable IP	28.109.75.126
Network (Hex)	0x1C6D4B40
Broadcast (Hex)	0x1C6D4B7F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00011100.01101101.01001011 00011100.01101101.01001011.01000000

Subnet Mask

11111111.11111111.11111111.11000000

The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.

Split into Equal Subnets

Split 28.109.75.64/26 into 2 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	28.109.75.64/27	28.109.75.64	28.109.75.65	28.109.75.94	28.109.75.95	30
2	28.109.75.96/27	28.109.75.96	28.109.75.97	28.109.75.126	28.109.75.127	30

Split 28.109.75.64/26 into 4 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	28.109.75.64/28	28.109.75.64	28.109.75.65	28.109.75.78	28.109.75.79	14
2	28.109.75.80/28	28.109.75.80	28.109.75.81	28.109.75.94	28.109.75.95	14
3	28.109.75.96/28	28.109.75.96	28.109.75.97	28.109.75.110	28.109.75.111	14
4	28.109.75.112/28	28.109.75.112	28.109.75.113	28.109.75.126	28.109.75.127	14

Split 28.109.75.64/26 into 8 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	28.109.75.64/29	28.109.75.64	28.109.75.65	28.109.75.70	28.109.75.71	6
2	28.109.75.72/29	28.109.75.72	28.109.75.73	28.109.75.78	28.109.75.79	6
3	28.109.75.80/29	28.109.75.80	28.109.75.81	28.109.75.86	28.109.75.87	6
4	28.109.75.88/29	28.109.75.88	28.109.75.89	28.109.75.94	28.109.75.95	6
5	28.109.75.96/29	28.109.75.96	28.109.75.97	28.109.75.102	28.109.75.103	6
6	28.109.75.104/29	28.109.75.104	28.109.75.105	28.109.75.110	28.109.75.111	6
7	28.109.75.112/29	28.109.75.112	28.109.75.113	28.109.75.118	28.109.75.119	6
8	28.109.75.120/29	28.109.75.120	28.109.75.121	28.109.75.126	28.109.75.127	6

Split 28.109.75.64/26 into 16 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	28.109.75.64/30	28.109.75.64	28.109.75.65	28.109.75.66	28.109.75.67	2
2	28.109.75.68/30	28.109.75.68	28.109.75.69	28.109.75.70	28.109.75.71	2
3	28.109.75.72/30	28.109.75.72	28.109.75.73	28.109.75.74	28.109.75.75	2
4	28.109.75.76/30	28.109.75.76	28.109.75.77	28.109.75.78	28.109.75.79	2
5	28.109.75.80/30	28.109.75.80	28.109.75.81	28.109.75.82	28.109.75.83	2
6	28.109.75.84/30	28.109.75.84	28.109.75.85	28.109.75.86	28.109.75.87	2
7	28.109.75.88/30	28.109.75.88	28.109.75.89	28.109.75.90	28.109.75.91	2
8	28.109.75.92/30	28.109.75.92	28.109.75.93	28.109.75.94	28.109.75.95	2
9	28.109.75.96/30	28.109.75.96	28.109.75.97	28.109.75.98	28.109.75.99	2
10	28.109.75.100/30	28.109.75.100	28.109.75.101	28.109.75.102	28.109.75.103	2
11	28.109.75.104/30	28.109.75.104	28.109.75.105	28.109.75.106	28.109.75.107	2
12	28.109.75.108/30	28.109.75.108	28.109.75.109	28.109.75.110	28.109.75.111	2
13	28.109.75.112/30	28.109.75.112	28.109.75.113	28.109.75.114	28.109.75.115	2
14	28.109.75.116/30	28.109.75.116	28.109.75.117	28.109.75.118	28.109.75.119	2
15	28.109.75.120/30	28.109.75.120	28.109.75.121	28.109.75.122	28.109.75.123	2
16	28.109.75.124/30	28.109.75.124	28.109.75.125	28.109.75.126	28.109.75.127	2

IP Address Sample

Showing first 16 of 64 total IPs.

28.109.75.64 net

28.109.75.65

28.109.75.66

28.109.75.67

28.109.75.68

28.109.75.69

28.109.75.70

28.109.75.71

28.109.75.72

28.109.75.73

28.109.75.74

28.109.75.75

28.109.75.76

28.109.75.77

28.109.75.78

28.109.75.79

… 48 more IPs …

/26 Subnet Reference

Total IPs 64

Usable Hosts 62

Subnet Mask 255.255.255.192

Wildcard 0.0.0.63

Full /26 reference →

Related Ranges

Parent /25 block 28.109.75.0/25 Sibling /26 block 28.109.75.0/26

Adjacent Prefix Sizes

/24 254 hosts /25 126 hosts /26 62 hosts /27 30 hosts /28 14 hosts