151.2.101.64/26

Public

Class B — /26 prefix — 62 usable hosts

Network Address

151.2.101.64

Broadcast Address

151.2.101.127

Subnet Mask

255.255.255.192

Usable Hosts

First Usable IP

151.2.101.65

Last Usable IP

151.2.101.126

Total IPs

Prefix Length

/26

Network address — the base address of the block (151.2.101.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 151.2.101.127 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	151.2.101.64/26
Network Address	151.2.101.64
Broadcast Address	151.2.101.127
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	151.2.101.65
Last Usable IP	151.2.101.126
Network (Hex)	0x97026540
Broadcast (Hex)	0x9702657F
Address Type	Public / Globally Routable

Binary Representation

Network Address

10010111.00000010.01100101 10010111.00000010.01100101.01000000

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 151.2.101.64/26 into 2 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	151.2.101.64/27	151.2.101.64	151.2.101.65	151.2.101.94	151.2.101.95	30
2	151.2.101.96/27	151.2.101.96	151.2.101.97	151.2.101.126	151.2.101.127	30

Split 151.2.101.64/26 into 4 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	151.2.101.64/28	151.2.101.64	151.2.101.65	151.2.101.78	151.2.101.79	14
2	151.2.101.80/28	151.2.101.80	151.2.101.81	151.2.101.94	151.2.101.95	14
3	151.2.101.96/28	151.2.101.96	151.2.101.97	151.2.101.110	151.2.101.111	14
4	151.2.101.112/28	151.2.101.112	151.2.101.113	151.2.101.126	151.2.101.127	14

Split 151.2.101.64/26 into 8 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	151.2.101.64/29	151.2.101.64	151.2.101.65	151.2.101.70	151.2.101.71	6
2	151.2.101.72/29	151.2.101.72	151.2.101.73	151.2.101.78	151.2.101.79	6
3	151.2.101.80/29	151.2.101.80	151.2.101.81	151.2.101.86	151.2.101.87	6
4	151.2.101.88/29	151.2.101.88	151.2.101.89	151.2.101.94	151.2.101.95	6
5	151.2.101.96/29	151.2.101.96	151.2.101.97	151.2.101.102	151.2.101.103	6
6	151.2.101.104/29	151.2.101.104	151.2.101.105	151.2.101.110	151.2.101.111	6
7	151.2.101.112/29	151.2.101.112	151.2.101.113	151.2.101.118	151.2.101.119	6
8	151.2.101.120/29	151.2.101.120	151.2.101.121	151.2.101.126	151.2.101.127	6

Split 151.2.101.64/26 into 16 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	151.2.101.64/30	151.2.101.64	151.2.101.65	151.2.101.66	151.2.101.67	2
2	151.2.101.68/30	151.2.101.68	151.2.101.69	151.2.101.70	151.2.101.71	2
3	151.2.101.72/30	151.2.101.72	151.2.101.73	151.2.101.74	151.2.101.75	2
4	151.2.101.76/30	151.2.101.76	151.2.101.77	151.2.101.78	151.2.101.79	2
5	151.2.101.80/30	151.2.101.80	151.2.101.81	151.2.101.82	151.2.101.83	2
6	151.2.101.84/30	151.2.101.84	151.2.101.85	151.2.101.86	151.2.101.87	2
7	151.2.101.88/30	151.2.101.88	151.2.101.89	151.2.101.90	151.2.101.91	2
8	151.2.101.92/30	151.2.101.92	151.2.101.93	151.2.101.94	151.2.101.95	2
9	151.2.101.96/30	151.2.101.96	151.2.101.97	151.2.101.98	151.2.101.99	2
10	151.2.101.100/30	151.2.101.100	151.2.101.101	151.2.101.102	151.2.101.103	2
11	151.2.101.104/30	151.2.101.104	151.2.101.105	151.2.101.106	151.2.101.107	2
12	151.2.101.108/30	151.2.101.108	151.2.101.109	151.2.101.110	151.2.101.111	2
13	151.2.101.112/30	151.2.101.112	151.2.101.113	151.2.101.114	151.2.101.115	2
14	151.2.101.116/30	151.2.101.116	151.2.101.117	151.2.101.118	151.2.101.119	2
15	151.2.101.120/30	151.2.101.120	151.2.101.121	151.2.101.122	151.2.101.123	2
16	151.2.101.124/30	151.2.101.124	151.2.101.125	151.2.101.126	151.2.101.127	2

IP Address Sample

Showing first 16 of 64 total IPs.

151.2.101.64 net

151.2.101.65

151.2.101.66

151.2.101.67

151.2.101.68

151.2.101.69

151.2.101.70

151.2.101.71

151.2.101.72

151.2.101.73

151.2.101.74

151.2.101.75

151.2.101.76

151.2.101.77

151.2.101.78

151.2.101.79

… 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 151.2.101.0/25 Sibling /26 block 151.2.101.0/26

Adjacent Prefix Sizes

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