How do I know which RIR server to query for an IP address?

StackOverflow https://stackoverflow.com/questions/13012370

  •  13-07-2021
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Question

How do I know which IP ranges are being allocated to the 5 Regional Internet Registries such as ARIN and RIPE, and thus which whois to query.

If I make it static, how often would I have to update the list? Or are all IPv4 ranges gone now..

Était-ce utile?

La solution

This is for IPv4, and this for IPv6.

Autres conseils

The previous answers seems not to be fully correct. IANA lists 62/8 for RIPE NCC but e.g. for 62.68.234.234 whois.ripe.net will respond with:

IPv4 address block not managed by the RIPE NCC

I guess the reliable approach would be to load the assignment lists and check against those (like suggested here).

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