- Network AS Peering Tools

AS Peering Tools - Autonomous System number Analysis

  • Check an Autonomous System Number (ASN) for IP ranges or lookup an IP address to get details of the AS. To find ASN's belonging to an organisation, simply enter a search string. A comma separated list of matching ASN's will be returned. - MX Tool Box
  • An AS is a connected group of one or more IP prefixes run by one or more network operators which has a SINGLE and CLEARLY DEFINED routing policy. This number is used in both the exchange of exterior routing information (between neighboring ASes), and as an identifier of the AS itself.
ARIN - American Registry for Internet Numbers
  • Check to see who owns an IP Address Block - IP Address Whois Check

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