CIDR Prefix: /18
Usable Host Range for /18 Subnet
Large cloud subnet block for high-density Kubernetes (EKS/GKE) cluster worker nodes. Pre-calculated routing boundaries, binary mapping mask, cloud provider allocation metrics, and copy-ready Terraform snippets.
100% Free & Secure Client-Side Sandbox
Interactive /18 Subnet Workspace
Pre-loaded Seed: 10.0.0.0/18Instantly ingest standardized industrial address space assignments from cloud reference blueprints.
Pre-Computed /18 Subnet Technical Specifications
Verified 32-bit Bitwise Calculation MatrixSubnet Mask (Dotted Decimal)255.255.192.0
Usable Host Capacity16,382 IPs
Cloud Reserved IPs (AWS)5 IPs
Default Range Seed10.0.0.0/18
| Binary Mask Blueprint | 11111111.11111111.11000000.00000000 |
|---|---|
| CIDR Notation | /18 |
| Netmask Address | 255.255.192.0 |
| Total Host Addresses | 16,384 |
| Usable Hosts (Standard IPv4) | 16,382 usable IPs |
| Cloud Net Capacity (AWS / GCP) | 16,379 usable IPs(AWS reserves 5 addresses: Network, VPC Router, DNS, Reserved, Broadcast) |
| Primary Architectural Use Case | Large cloud subnet block for high-density Kubernetes (EKS/GKE) cluster worker nodes. |
Terraform IaC Configuration Block (/18)
Copy-ready infrastructure coderesource "aws_subnet" "eks_nodes_18" {
vpc_id = aws_vpc.main.id
cidr_block = "10.0.0.0/18"
availability_zone = "us-east-1a"
tags = {
Name = "eks-high-density-nodes"
}
}Related CIDR Subnet Specifications
← Larger Network (Double Host Capacity)/17 Subnet (32,766 Usable Hosts)
Half VPC address space ideal for splitting multi-region VPC peering setups.
Smaller Network (Half Host Capacity) →/19 Subnet (8,190 Usable Hosts)
Regional workload subnet for container platforms requiring high IP density.