CIDR Prefix: /27

Usable Host Range for /27 Subnet

Small tier subnet common for load balancer target groups and NAT gateways. Pre-calculated routing boundaries, binary mapping mask, cloud provider allocation metrics, and copy-ready Terraform snippets.

100% Free & Secure Client-Side Sandbox

Interactive /27 Subnet Workspace

Pre-loaded Seed: 192.168.1.0/27

Instantly ingest standardized industrial address space assignments from cloud reference blueprints.

Pre-Computed /27 Subnet Technical Specifications

Verified 32-bit Bitwise Calculation Matrix
Subnet Mask (Dotted Decimal)255.255.255.224
Usable Host Capacity30 IPs
Cloud Reserved IPs (AWS)5 IPs
Default Range Seed192.168.1.0/27
Binary Mask Blueprint11111111.11111111.11111111.11100000
CIDR Notation/27
Netmask Address255.255.255.224
Total Host Addresses32
Usable Hosts (Standard IPv4)30 usable IPs
Cloud Net Capacity (AWS / GCP)27 usable IPs(AWS reserves 5 addresses: Network, VPC Router, DNS, Reserved, Broadcast)
Primary Architectural Use CaseSmall tier subnet common for load balancer target groups and NAT gateways.

Terraform IaC Configuration Block (/27)

Copy-ready infrastructure code
resource "aws_subnet" "subnet_27" {
  vpc_id            = aws_vpc.main.id
  cidr_block        = "192.168.1.0/27"
  availability_zone = "us-east-1a"
  tags = {
    Name = "alb-tier-27"
  }
}

Related CIDR Subnet Specifications

← Larger Network (Double Host Capacity)/26 Subnet (62 Usable Hosts)

Quarter Class C subnet standard for API gateway tiers or database subnets.

Smaller Network (Half Host Capacity) →/28 Subnet (14 Usable Hosts)

AWS VPC minimum allowable subnet size providing 14 usable IP addresses (9 in AWS).

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