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Makes sense. I'll do that after I'm done with the meeting I'm in now. Edit: Changed. However, the number of companies with A records in netblocks that are owne
by jf 16y ago
Makes sense. I'll do that after I'm done with the meeting I'm in now.
Edit: Changed. However, the number of companies with A records in netblocks that are owned by "Slicehost" is pretty small. Perhaps Rackspace has been working on changing the names on the Slicehost netblocks?
- jedsmith 16y agoNo: http://whois.arin.net/rest/nets;q=173.203.218.200?showDetails=true&showARIN=false http://whois.arin.net/rest/nets;q=173.203.218.200?showDetail... That's embed.ly - they're at Slicehost, but you still have them at Rackspace even after this change. Your script might be confused because the /24 is a reassigned child of Rackspace's /16. I've parsed WHOIS in the past and the corner cases make a very solid argument for just doing it by hand. IP ownership issues, which you've already seen with Linode, make it almost exclusively a wet code problem. There's a few nagging questions with the list from a casual skim, too, one of them being octopart.com - 64.71.142.178 is part of a reassigned /28 out of a Hurricane /18, which means Octopart likely hosts themselves. I have doubts you get a /28 from Hurricane with their shared hosting, but their sales page does list a static address (singular). Shrug.
- jf 16y agoMost of the mistakes were due to my script using Team Cymru's IP to ASN mapping service (http://www.team-cymru.org/Services/ip-to-asn.html http://www.team-cymru.org/Services/ip-to-asn.html) thanks for your tip on using ARIN's Whois service. Looks like I've got more accurate results with them.
- jedsmith 16y agoYeah, you'll get announcing datacenters out of that, but for IP ownership, you need to check WHOIS. ARIN WHOIS is only going to be ARIN regions (the Americas) - you want RIPE for Europe, APNIC for Asia/Australia, and so on.