34.21.148.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
34.21.148.64
Broadcast Address
34.21.148.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
34.21.148.65
Last Usable IP
34.21.148.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (34.21.148.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 34.21.148.95 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 30 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 34.21.148.64/27
Network Address 34.21.148.64
Broadcast Address 34.21.148.95
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class A
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 34.21.148.65
Last Usable IP 34.21.148.94
Network (Hex) 0x22159440
Broadcast (Hex) 0x2215945F
Address Type Public / Globally Routable

Binary Representation

Network Address
00100010.00010101.10010100 00100010.00010101.10010100.01000000
Subnet Mask
11111111.11111111.11111111.11100000

The first 27 bits (1s in the mask) identify the network. The remaining 5 bits identify hosts within the network.

Split into Equal Subnets

Split 34.21.148.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 34.21.148.64/28 34.21.148.64 34.21.148.65 34.21.148.78 34.21.148.79 14
2 34.21.148.80/28 34.21.148.80 34.21.148.81 34.21.148.94 34.21.148.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

34.21.148.64 net
34.21.148.65
34.21.148.66
34.21.148.67
34.21.148.68
34.21.148.69
34.21.148.70
34.21.148.71
34.21.148.72
34.21.148.73
34.21.148.74
34.21.148.75
34.21.148.76
34.21.148.77
34.21.148.78
34.21.148.79
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

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