34.21.139.64/26

Public

Class A — /26 prefix — 62 usable hosts

Network Address

34.21.139.64

Broadcast Address

34.21.139.127

Subnet Mask

255.255.255.192

Usable Hosts

First Usable IP

34.21.139.65

Last Usable IP

34.21.139.126

Total IPs

Prefix Length

/26

Network address — the base address of the block (34.21.139.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 34.21.139.127 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	34.21.139.64/26
Network Address	34.21.139.64
Broadcast Address	34.21.139.127
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	34.21.139.65
Last Usable IP	34.21.139.126
Network (Hex)	0x22158B40
Broadcast (Hex)	0x22158B7F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00100010.00010101.10001011 00100010.00010101.10001011.01000000

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 34.21.139.64/26 into 2 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	34.21.139.64/27	34.21.139.64	34.21.139.65	34.21.139.94	34.21.139.95	30
2	34.21.139.96/27	34.21.139.96	34.21.139.97	34.21.139.126	34.21.139.127	30

Split 34.21.139.64/26 into 4 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	34.21.139.64/28	34.21.139.64	34.21.139.65	34.21.139.78	34.21.139.79	14
2	34.21.139.80/28	34.21.139.80	34.21.139.81	34.21.139.94	34.21.139.95	14
3	34.21.139.96/28	34.21.139.96	34.21.139.97	34.21.139.110	34.21.139.111	14
4	34.21.139.112/28	34.21.139.112	34.21.139.113	34.21.139.126	34.21.139.127	14

Split 34.21.139.64/26 into 8 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	34.21.139.64/29	34.21.139.64	34.21.139.65	34.21.139.70	34.21.139.71	6
2	34.21.139.72/29	34.21.139.72	34.21.139.73	34.21.139.78	34.21.139.79	6
3	34.21.139.80/29	34.21.139.80	34.21.139.81	34.21.139.86	34.21.139.87	6
4	34.21.139.88/29	34.21.139.88	34.21.139.89	34.21.139.94	34.21.139.95	6
5	34.21.139.96/29	34.21.139.96	34.21.139.97	34.21.139.102	34.21.139.103	6
6	34.21.139.104/29	34.21.139.104	34.21.139.105	34.21.139.110	34.21.139.111	6
7	34.21.139.112/29	34.21.139.112	34.21.139.113	34.21.139.118	34.21.139.119	6
8	34.21.139.120/29	34.21.139.120	34.21.139.121	34.21.139.126	34.21.139.127	6

Split 34.21.139.64/26 into 16 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	34.21.139.64/30	34.21.139.64	34.21.139.65	34.21.139.66	34.21.139.67	2
2	34.21.139.68/30	34.21.139.68	34.21.139.69	34.21.139.70	34.21.139.71	2
3	34.21.139.72/30	34.21.139.72	34.21.139.73	34.21.139.74	34.21.139.75	2
4	34.21.139.76/30	34.21.139.76	34.21.139.77	34.21.139.78	34.21.139.79	2
5	34.21.139.80/30	34.21.139.80	34.21.139.81	34.21.139.82	34.21.139.83	2
6	34.21.139.84/30	34.21.139.84	34.21.139.85	34.21.139.86	34.21.139.87	2
7	34.21.139.88/30	34.21.139.88	34.21.139.89	34.21.139.90	34.21.139.91	2
8	34.21.139.92/30	34.21.139.92	34.21.139.93	34.21.139.94	34.21.139.95	2
9	34.21.139.96/30	34.21.139.96	34.21.139.97	34.21.139.98	34.21.139.99	2
10	34.21.139.100/30	34.21.139.100	34.21.139.101	34.21.139.102	34.21.139.103	2
11	34.21.139.104/30	34.21.139.104	34.21.139.105	34.21.139.106	34.21.139.107	2
12	34.21.139.108/30	34.21.139.108	34.21.139.109	34.21.139.110	34.21.139.111	2
13	34.21.139.112/30	34.21.139.112	34.21.139.113	34.21.139.114	34.21.139.115	2
14	34.21.139.116/30	34.21.139.116	34.21.139.117	34.21.139.118	34.21.139.119	2
15	34.21.139.120/30	34.21.139.120	34.21.139.121	34.21.139.122	34.21.139.123	2
16	34.21.139.124/30	34.21.139.124	34.21.139.125	34.21.139.126	34.21.139.127	2

IP Address Sample

Showing first 16 of 64 total IPs.

34.21.139.64 net

34.21.139.65

34.21.139.66

34.21.139.67

34.21.139.68

34.21.139.69

34.21.139.70

34.21.139.71

34.21.139.72

34.21.139.73

34.21.139.74

34.21.139.75

34.21.139.76

34.21.139.77

34.21.139.78

34.21.139.79

… 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 34.21.139.0/25 Sibling /26 block 34.21.139.0/26

Adjacent Prefix Sizes

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