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• Networking
  • IP Calculator
  • Subnet Calculator
  • Check IP
  • Check MAC
  • Check Domain
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Online Networking Tools

Find here a lot of network related online-tools to lookup all kinds of stuff. All you need is your browser to make them work.

• IP Calculator - Sort and manage IP-address blocks
  Sort and merge IP addresses and network blocks More than once I've been confronted with a list of IP addresses that I wanted to sort, remove duplicates, merge into netblocks. This calculator is designed to sort and merge multiple IP addresses/IP network blocks (consolidate adjacent and overlapping netblocks, remove duplicates, exclude another set of networks/IP's, sort the output).

• Check IP - Find netblock owners
  Query all network coordination centers (NCC) for the netblock holder of any IP-address.

• Check MAC - Identify manufacturer of network interfaces
  Identify the manufacturers of hardware/medium access control (MAC) addresses. Directly copy-paste the output of popular commands (arp -a or ipconfig /all) into the MAC decoder.

• IP Subnet Calculator - Perform various subnet calculations
  The IP subnet calculator performs subnet network calculations using the IP-address, subnet mask, or subnet bits (CIDS) as input. While subnet masks are often represented in dot-decimal form, their use becomes clearer in binary.