245.198.253.128/27

Public

Class E (Reserved) — /27 prefix — 30 usable hosts

Network Address
245.198.253.128
Broadcast Address
245.198.253.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
245.198.253.129
Last Usable IP
245.198.253.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (245.198.253.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 245.198.253.159 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 245.198.253.128/27
Network Address 245.198.253.128
Broadcast Address 245.198.253.159
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class E (Reserved)
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 245.198.253.129
Last Usable IP 245.198.253.158
Network (Hex) 0xF5C6FD80
Broadcast (Hex) 0xF5C6FD9F
Address Type Public / Globally Routable

Binary Representation

Network Address
11110101.11000110.11111101 11110101.11000110.11111101.10000000
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 245.198.253.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 245.198.253.128/28 245.198.253.128 245.198.253.129 245.198.253.142 245.198.253.143 14
2 245.198.253.144/28 245.198.253.144 245.198.253.145 245.198.253.158 245.198.253.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

245.198.253.128 net
245.198.253.129
245.198.253.130
245.198.253.131
245.198.253.132
245.198.253.133
245.198.253.134
245.198.253.135
245.198.253.136
245.198.253.137
245.198.253.138
245.198.253.139
245.198.253.140
245.198.253.141
245.198.253.142
245.198.253.143
… 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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