64.252.61.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
64.252.61.0
Broadcast Address
64.252.61.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
64.252.61.1
Last Usable IP
64.252.61.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (64.252.61.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 64.252.61.31 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 64.252.61.0/27
Network Address 64.252.61.0
Broadcast Address 64.252.61.31
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 64.252.61.1
Last Usable IP 64.252.61.30
Network (Hex) 0x40FC3D00
Broadcast (Hex) 0x40FC3D1F
Address Type Public / Globally Routable

Binary Representation

Network Address
01000000.11111100.00111101 01000000.11111100.00111101.00000000
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 64.252.61.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 64.252.61.0/28 64.252.61.0 64.252.61.1 64.252.61.14 64.252.61.15 14
2 64.252.61.16/28 64.252.61.16 64.252.61.17 64.252.61.30 64.252.61.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

64.252.61.0 net
64.252.61.1
64.252.61.2
64.252.61.3
64.252.61.4
64.252.61.5
64.252.61.6
64.252.61.7
64.252.61.8
64.252.61.9
64.252.61.10
64.252.61.11
64.252.61.12
64.252.61.13
64.252.61.14
64.252.61.15
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another