nanog mailing list archives
Re: ASN to IP Mapping
From: Rubens Kuhl <rubensk () gmail com>
Date: Sat, 7 Mar 2015 18:12:50 -0300
On Sat, Mar 7, 2015 at 12:37 PM, Andrew Iwamoto < aiwamoto () unleashed-technologies com> wrote:
Is there a tool or method to determine IP blocks assigned to an organization by ASN? I.e. if I have an organization's ASN number I want to know all blocks assigned to that ASN.
That's RIR/NIR-dependent, so you probably have to go thru all of them to map all possible IP blocks. Other references suggested bgp.he.net that will only list advertised networks, and IRRs will only have IRR-listed networks. For instance, on ARIN for AS 15141: http://whois.arin.net/rest/asn/AS15141 Find the organization name; click on the link http://whois.arin.net/rest/org/BAUSCH-1.html Find the networks link: http://whois.arin.net/rest/org/BAUSCH-1/nets Network ResourcesBAUSCH-LOMB (NET-161-242-0-0-1 <http://whois.arin.net/rest/net/NET-161-242-0-0-1.html>)161.242.0.0 - 161.242.255.255 Look for the other RIRs; rinse and repeat. Rubens
Current thread:
- ASN to IP Mapping Andrew Iwamoto (Mar 07)
- Re: ASN to IP Mapping Christopher Morrow (Mar 07)
- Re: ASN to IP Mapping Mansoor Nathani (Mar 07)
- Re: ASN to IP Mapping Pedro Cavaca (Mar 07)
- Re: ASN to IP Mapping Rubens Kuhl (Mar 07)
- Re: ASN to IP Mapping Bob Evans (Mar 07)
- Re: ASN to IP Mapping Geoff Huston (Mar 07)
- Re: ASN to IP Mapping Randy Bush (Mar 07)
- Re: ASN to IP Mapping Geoff Huston (Mar 07)
- Re: ASN to IP Mapping Christopher Morrow (Mar 07)
- Re: ASN to IP Mapping Randy Bush (Mar 07)
- Re: ASN to IP Mapping Hank Nussbacher (Mar 07)
- Re: ASN to IP Mapping Geoff Huston (Mar 08)
- Re: ASN to IP Mapping Hank Nussbacher (Mar 08)
- Re: ASN to IP Mapping David Conrad (Mar 08)