18.152.164.32/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address

18.152.164.32

Broadcast Address

18.152.164.63

Subnet Mask

255.255.255.224

Usable Hosts

First Usable IP

18.152.164.33

Last Usable IP

18.152.164.62

Total IPs

Prefix Length

/27

Network address — the base address of the block (18.152.164.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 18.152.164.63 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 mask — 255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	18.152.164.32/27
Network Address	18.152.164.32
Broadcast Address	18.152.164.63
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	18.152.164.33
Last Usable IP	18.152.164.62
Network (Hex)	0x1298A420
Broadcast (Hex)	0x1298A43F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00010010.10011000.10100100 00010010.10011000.10100100.00100000

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 18.152.164.32/27 into 2 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	18.152.164.32/28	18.152.164.32	18.152.164.33	18.152.164.46	18.152.164.47	14
2	18.152.164.48/28	18.152.164.48	18.152.164.49	18.152.164.62	18.152.164.63	14

Split 18.152.164.32/27 into 4 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	18.152.164.32/29	18.152.164.32	18.152.164.33	18.152.164.38	18.152.164.39	6
2	18.152.164.40/29	18.152.164.40	18.152.164.41	18.152.164.46	18.152.164.47	6
3	18.152.164.48/29	18.152.164.48	18.152.164.49	18.152.164.54	18.152.164.55	6
4	18.152.164.56/29	18.152.164.56	18.152.164.57	18.152.164.62	18.152.164.63	6

Split 18.152.164.32/27 into 8 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	18.152.164.32/30	18.152.164.32	18.152.164.33	18.152.164.34	18.152.164.35	2
2	18.152.164.36/30	18.152.164.36	18.152.164.37	18.152.164.38	18.152.164.39	2
3	18.152.164.40/30	18.152.164.40	18.152.164.41	18.152.164.42	18.152.164.43	2
4	18.152.164.44/30	18.152.164.44	18.152.164.45	18.152.164.46	18.152.164.47	2
5	18.152.164.48/30	18.152.164.48	18.152.164.49	18.152.164.50	18.152.164.51	2
6	18.152.164.52/30	18.152.164.52	18.152.164.53	18.152.164.54	18.152.164.55	2
7	18.152.164.56/30	18.152.164.56	18.152.164.57	18.152.164.58	18.152.164.59	2
8	18.152.164.60/30	18.152.164.60	18.152.164.61	18.152.164.62	18.152.164.63	2

IP Address Sample

Showing first 16 of 32 total IPs.

18.152.164.32 net

18.152.164.33

18.152.164.34

18.152.164.35

18.152.164.36

18.152.164.37

18.152.164.38

18.152.164.39

18.152.164.40

18.152.164.41

18.152.164.42

18.152.164.43

18.152.164.44

18.152.164.45

18.152.164.46

18.152.164.47

… 16 more IPs …

/27 Subnet Reference

Total IPs 32

Usable Hosts 30

Subnet Mask 255.255.255.224

Wildcard 0.0.0.31

Full /27 reference →

Related Ranges

Parent /26 block 18.152.164.0/26 Sibling /27 block 18.152.164.0/27

Adjacent Prefix Sizes

/25 126 hosts /26 62 hosts /27 30 hosts /28 14 hosts /29 6 hosts