SUBNET CALCULATOR

Subnet / CIDR calculator

Enter an IPv4 address and prefix to calculate the network, host range and subnet mask. Entirely in your browser.

IPV4 ADDRESSPREFIX /24/0/8/16/24/32

This calculation runs entirely in your browser. Your input is not sent to a server. /31 point-to-point links and /32 single addresses are handled separately.

KEEP EXPLORING

One more answer is here.

All tools

DEVELOPER

QR code generator

Create static QR codes for URLs, contacts, Wi-Fi, phone, email and text.

Open tool

NETWORK

DNS lookup

Look up a domain’s IP, email and verification records.

Open tool

NETWORK

IP blacklist check

Check your mail server IP against SpamCop and PSBL.

Open tool

Subnet / CIDR calculator

One more answer is here.

QR code generator

DNS lookup

IP blacklist check

Found it useful? Pass it on.