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Free online network tools & utilities

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Subnet Calc - compute network subnet (dotted decimal or CIDR notation) mask for IP address or range, or vice versa. Determine number of hosts, broadcast address and host class.


8.8.8.8 or 192.0.34.164


Select 255.255.255.0 · /24 or 255.0.0.0 · /8

What is your IP? Whois?
IP: 54.147.253.45 more
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Size: 207 bytes more
Server date / time
January 24, 2017, 8:04 AM
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