IPv6 Subnet Allocator
Determine the right sub-prefix from a /N delegation.
Sub-prefix length
/54
Addresses per subnet
18,889,465,931,478,580,000,000
Equivalent /64s
1024.00
About this tool
Given a /N delegation and the number of subnets you need, compute the sub-prefix and the addresses per subnet. Targets r/sysadmin and r/networking subnet-planning threads.
Related tools
More engineering you might find useful.
Other categories
Looking for something different? Browse the rest of the catalog.
Calculators
Crunch the numbers.
Generators
Generate anything.
Formatters
Tidy up text.
Checkers
Verify anything.
Converters
Switch units fast.
Trackers
Stay on schedule.
SEO
Rank smarter.
YouTube
Grow your channel.
Gaming
Play sharper.
Music
Mix it right.
Investing
Invest smarter.
Health & Fitness
Live stronger.
Home & DIY
Make it home.
Travel
Travel smarter.
Productivity & Lifestyle
Decide faster.
Photography
Sharper images.
Cars
Save on cars.
Sponsored suggestions
- Like this site? You'll love our weekly newsletter
One new tool, one fresh Reddit pain point, every Friday. No spam.
Some links below are affiliate links. We may earn a commission if you purchase through them, at no extra cost to you.