Printable IPv4 Subnet Cheat Sheet
This one-page IPv4 subnet cheat sheet is for anyone working with subnet masks, CIDR notation, or IP planning. It lists CIDR values with matching mask, wildcard, total addresses, and usable addresses in a simple table, with examples like /8, /9, and /10.
Free printable · PDF
- 1 page
- US Letter — choose “Fit to page” for A4
- PDF, 54 KB
Free for personal, family and classroom use.
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Use it as a quick reference while studying, configuring networks, or checking subnet sizes by hand. Print it and keep it near your workstation, or open the PDF while you compare CIDR blocks and address counts.
Good for
- Check IPv4 subnet sizes fast
- Compare CIDR, mask, and wildcard values
- Study subnetting before a test
Tip: Print at actual size on Letter paper so the table stays easy to read.
5 files · PDF, XLSX, DOCX
Get every sheet: Subnetting Reference Pack
This sheet plus 4 more in one download, with the editable Excel and Word files. Printable subnetting cheat sheet (CIDR, masks, wildcards, hosts), a binary and powers-of-two table, subnetting practice worksheets with answers and an IP address plan workbook.
$3.00 USD, one-time 5 files · about $0.60 each
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