156.4.2.64/26

Public

Class B — /26 prefix — 62 usable hosts

Network Address

156.4.2.64

Broadcast Address

156.4.2.127

Subnet Mask

255.255.255.192

Usable Hosts

First Usable IP

156.4.2.65

Last Usable IP

156.4.2.126

Total IPs

Prefix Length

/26

Network address — the base address of the block (156.4.2.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 156.4.2.127 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	156.4.2.64/26
Network Address	156.4.2.64
Broadcast Address	156.4.2.127
Subnet Mask	255.255.255.192
Wildcard Mask	0.0.0.63
Prefix Length	/26
IP Address Class	Class B
Total IP Addresses	64
Usable Host Addresses	62
First Usable IP	156.4.2.65
Last Usable IP	156.4.2.126
Network (Hex)	0x9C040240
Broadcast (Hex)	0x9C04027F
Address Type	Public / Globally Routable

Binary Representation

Network Address

10011100.00000100.00000010 10011100.00000100.00000010.01000000

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 156.4.2.64/26 into 2 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	156.4.2.64/27	156.4.2.64	156.4.2.65	156.4.2.94	156.4.2.95	30
2	156.4.2.96/27	156.4.2.96	156.4.2.97	156.4.2.126	156.4.2.127	30

Split 156.4.2.64/26 into 4 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	156.4.2.64/28	156.4.2.64	156.4.2.65	156.4.2.78	156.4.2.79	14
2	156.4.2.80/28	156.4.2.80	156.4.2.81	156.4.2.94	156.4.2.95	14
3	156.4.2.96/28	156.4.2.96	156.4.2.97	156.4.2.110	156.4.2.111	14
4	156.4.2.112/28	156.4.2.112	156.4.2.113	156.4.2.126	156.4.2.127	14

Split 156.4.2.64/26 into 8 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	156.4.2.64/29	156.4.2.64	156.4.2.65	156.4.2.70	156.4.2.71	6
2	156.4.2.72/29	156.4.2.72	156.4.2.73	156.4.2.78	156.4.2.79	6
3	156.4.2.80/29	156.4.2.80	156.4.2.81	156.4.2.86	156.4.2.87	6
4	156.4.2.88/29	156.4.2.88	156.4.2.89	156.4.2.94	156.4.2.95	6
5	156.4.2.96/29	156.4.2.96	156.4.2.97	156.4.2.102	156.4.2.103	6
6	156.4.2.104/29	156.4.2.104	156.4.2.105	156.4.2.110	156.4.2.111	6
7	156.4.2.112/29	156.4.2.112	156.4.2.113	156.4.2.118	156.4.2.119	6
8	156.4.2.120/29	156.4.2.120	156.4.2.121	156.4.2.126	156.4.2.127	6

Split 156.4.2.64/26 into 16 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	156.4.2.64/30	156.4.2.64	156.4.2.65	156.4.2.66	156.4.2.67	2
2	156.4.2.68/30	156.4.2.68	156.4.2.69	156.4.2.70	156.4.2.71	2
3	156.4.2.72/30	156.4.2.72	156.4.2.73	156.4.2.74	156.4.2.75	2
4	156.4.2.76/30	156.4.2.76	156.4.2.77	156.4.2.78	156.4.2.79	2
5	156.4.2.80/30	156.4.2.80	156.4.2.81	156.4.2.82	156.4.2.83	2
6	156.4.2.84/30	156.4.2.84	156.4.2.85	156.4.2.86	156.4.2.87	2
7	156.4.2.88/30	156.4.2.88	156.4.2.89	156.4.2.90	156.4.2.91	2
8	156.4.2.92/30	156.4.2.92	156.4.2.93	156.4.2.94	156.4.2.95	2
9	156.4.2.96/30	156.4.2.96	156.4.2.97	156.4.2.98	156.4.2.99	2
10	156.4.2.100/30	156.4.2.100	156.4.2.101	156.4.2.102	156.4.2.103	2
11	156.4.2.104/30	156.4.2.104	156.4.2.105	156.4.2.106	156.4.2.107	2
12	156.4.2.108/30	156.4.2.108	156.4.2.109	156.4.2.110	156.4.2.111	2
13	156.4.2.112/30	156.4.2.112	156.4.2.113	156.4.2.114	156.4.2.115	2
14	156.4.2.116/30	156.4.2.116	156.4.2.117	156.4.2.118	156.4.2.119	2
15	156.4.2.120/30	156.4.2.120	156.4.2.121	156.4.2.122	156.4.2.123	2
16	156.4.2.124/30	156.4.2.124	156.4.2.125	156.4.2.126	156.4.2.127	2

IP Address Sample

Showing first 16 of 64 total IPs.

156.4.2.64 net

156.4.2.65

156.4.2.66

156.4.2.67

156.4.2.68

156.4.2.69

156.4.2.70

156.4.2.71

156.4.2.72

156.4.2.73

156.4.2.74

156.4.2.75

156.4.2.76

156.4.2.77

156.4.2.78

156.4.2.79

… 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 156.4.2.0/25 Sibling /26 block 156.4.2.0/26

Adjacent Prefix Sizes

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