IP to authoritative CIDR webservices

William Pitcock nenolod at systeminplace.net
Mon Dec 14 23:13:28 CST 2009


Hi,

On Mon, 2009-12-14 at 21:10 -0800, Mehmet Akcin wrote:
> Current RIR whois actually does that.
> 
> ie: search for 199.4.29
> it will show you 199.4.28/22

Yes, but it has to be parsed, and RIRs have varying whois formats.  ARIN
vs RIPE whois output, for example.

William





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