16.18.71.64/26

Public

Class A — /26 prefix — 62 usable hosts

Network Address

16.18.71.64

Broadcast Address

16.18.71.127

Subnet Mask

255.255.255.192

Usable Hosts

First Usable IP

16.18.71.65

Last Usable IP

16.18.71.126

Total IPs

Prefix Length

/26

Network address — the base address of the block (16.18.71.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 16.18.71.127 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	16.18.71.64/26
Network Address	16.18.71.64
Broadcast Address	16.18.71.127
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	16.18.71.65
Last Usable IP	16.18.71.126
Network (Hex)	0x10124740
Broadcast (Hex)	0x1012477F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00010000.00010010.01000111 00010000.00010010.01000111.01000000

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 16.18.71.64/26 into 2 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	16.18.71.64/27	16.18.71.64	16.18.71.65	16.18.71.94	16.18.71.95	30
2	16.18.71.96/27	16.18.71.96	16.18.71.97	16.18.71.126	16.18.71.127	30

Split 16.18.71.64/26 into 4 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	16.18.71.64/28	16.18.71.64	16.18.71.65	16.18.71.78	16.18.71.79	14
2	16.18.71.80/28	16.18.71.80	16.18.71.81	16.18.71.94	16.18.71.95	14
3	16.18.71.96/28	16.18.71.96	16.18.71.97	16.18.71.110	16.18.71.111	14
4	16.18.71.112/28	16.18.71.112	16.18.71.113	16.18.71.126	16.18.71.127	14

Split 16.18.71.64/26 into 8 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	16.18.71.64/29	16.18.71.64	16.18.71.65	16.18.71.70	16.18.71.71	6
2	16.18.71.72/29	16.18.71.72	16.18.71.73	16.18.71.78	16.18.71.79	6
3	16.18.71.80/29	16.18.71.80	16.18.71.81	16.18.71.86	16.18.71.87	6
4	16.18.71.88/29	16.18.71.88	16.18.71.89	16.18.71.94	16.18.71.95	6
5	16.18.71.96/29	16.18.71.96	16.18.71.97	16.18.71.102	16.18.71.103	6
6	16.18.71.104/29	16.18.71.104	16.18.71.105	16.18.71.110	16.18.71.111	6
7	16.18.71.112/29	16.18.71.112	16.18.71.113	16.18.71.118	16.18.71.119	6
8	16.18.71.120/29	16.18.71.120	16.18.71.121	16.18.71.126	16.18.71.127	6

Split 16.18.71.64/26 into 16 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	16.18.71.64/30	16.18.71.64	16.18.71.65	16.18.71.66	16.18.71.67	2
2	16.18.71.68/30	16.18.71.68	16.18.71.69	16.18.71.70	16.18.71.71	2
3	16.18.71.72/30	16.18.71.72	16.18.71.73	16.18.71.74	16.18.71.75	2
4	16.18.71.76/30	16.18.71.76	16.18.71.77	16.18.71.78	16.18.71.79	2
5	16.18.71.80/30	16.18.71.80	16.18.71.81	16.18.71.82	16.18.71.83	2
6	16.18.71.84/30	16.18.71.84	16.18.71.85	16.18.71.86	16.18.71.87	2
7	16.18.71.88/30	16.18.71.88	16.18.71.89	16.18.71.90	16.18.71.91	2
8	16.18.71.92/30	16.18.71.92	16.18.71.93	16.18.71.94	16.18.71.95	2
9	16.18.71.96/30	16.18.71.96	16.18.71.97	16.18.71.98	16.18.71.99	2
10	16.18.71.100/30	16.18.71.100	16.18.71.101	16.18.71.102	16.18.71.103	2
11	16.18.71.104/30	16.18.71.104	16.18.71.105	16.18.71.106	16.18.71.107	2
12	16.18.71.108/30	16.18.71.108	16.18.71.109	16.18.71.110	16.18.71.111	2
13	16.18.71.112/30	16.18.71.112	16.18.71.113	16.18.71.114	16.18.71.115	2
14	16.18.71.116/30	16.18.71.116	16.18.71.117	16.18.71.118	16.18.71.119	2
15	16.18.71.120/30	16.18.71.120	16.18.71.121	16.18.71.122	16.18.71.123	2
16	16.18.71.124/30	16.18.71.124	16.18.71.125	16.18.71.126	16.18.71.127	2

IP Address Sample

Showing first 16 of 64 total IPs.

16.18.71.64 net

16.18.71.65

16.18.71.66

16.18.71.67

16.18.71.68

16.18.71.69

16.18.71.70

16.18.71.71

16.18.71.72

16.18.71.73

16.18.71.74

16.18.71.75

16.18.71.76

16.18.71.77

16.18.71.78

16.18.71.79

… 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 16.18.71.0/25 Sibling /26 block 16.18.71.0/26

Adjacent Prefix Sizes

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