[thelist] Fwd: Finding out who owns particular IP addresses
Anthony Baratta
Anthony at Baratta.com
Mon Jan 8 16:54:26 CST 2001
This is some good info, for those so inclined to track down these things.
>Greetings All,
> I received this request for clarification about how one
>finds out who 'owns' particular IP addresses. After having spent some
>time composing a response I thought that there might be other neophytes
>on the list who will find this useful.
>
>To the old hands Hit delete now ;-)
>
>
>On Mon, 8 Jan 2001 14:02:31 +0100 "Licher, Ansgar" <A.Licher at mbn.de>
>wrote:
>
> > Hi Russell,
> >
> > I read your contribution regarding that stuff about the probable port
> > scanning on port 12345.
> >
> > Since I am not a security expert yet, I am seriously working to increase my
> > knowledge to the max. What I just want to know is, where or how can I
> > resolve, what you were wrting about:
> >
> > "Source IPs were all dialup or cable/dsl belonging to major ISPs with a lot
> > in Korea (210.0.0.0/7) as you observered, but also with a sprinkling from
> > big North American providers. "
> >
> > How do you know, that 210.0.0.0/7 is Korea??? Where do you know that
> several
> > addresses came from major ISPs???
>
>The IP address space is managed by a group of Network Information
>Centres (NICs) with ARIN (American -- I forget exactly what the rest of
>the acronym is) at the top. All the NICs maintain searchable databases
>which you access via whois (most now also have web interfaces too --
>surprise) Unfortunately these databases are not as well coordinated as
>one might hope and to find the owner of a particular address you have
>to search the various whois databases starting with ARIN.
>
>So for 210.96.87.189
>
>bluebottle:~ >whois -h whois.arin.net 210.96.87.189
>Asia Pacific Network Information Center (NETBLK-APNIC-CIDR-BLK)
> These addresses have been further assigned to Asia-Pacific users.
> Contact information can be found in the APNIC database,
> at WHOIS.APNIC.NET or http://www.apnic.net/
> Please do not send spam complaints to APNIC.
>
> Netname: APNIC-CIDR-BLK2
> Netblock: 210.0.0.0 - 211.255.255.255
>
> Coordinator:
> Administrator, System (SA90-ARIN) sysadm at APNIC.NET
> +61-7-3367-0490
>
> Domain System inverse mapping provided by:
>
> NS.APNIC.NET 203.37.255.97
> SVC00.APNIC.NET 202.12.28.131
> NS.TELSTRA.NET 203.50.0.137
> NS.RIPE.NET 193.0.0.193
>
> Regional Internet Registry for the Asia-Pacific Region.
>
> *** Use whois -h whois.apnic.net <object> ***
>
> *** or see http://www.apnic.net/db/ for database assistance ***
>
>
> Record last updated on 03-May-2000.
> Database last updated on 8-Jan-2001 06:20:22 EDT.
>
>and we see that 210/7 is allocated to APNIC (Asia Pacific) so we repeat
>the search at apnic.
>
>bluebottle:~ >whois -h whois.apnic.net 210.96.87.189
>
>% Rights restricted by copyright. See
>http://www.apnic.net/db/dbcopyright.html
>
>inetnum: 210.96.0.0 - 210.97.191.255
>netname: KRNIC-KR-14
>descr: National Computerization Agency
>descr: Korea Network Information Center
>country: KR
>admin-c: WK1-AP
>tech-c: SH3-KR
>tech-c: SL40-AP
>remarks: National NIC
>remarks: These addresses have been assigned to organisations in
>KoRea.
>remarks: Further information can be obtained from whois.krnic.net
>mnt-by: MAINT-APNIC-AP
>changed: hostmaster at apnic.net 19980521
>changed: apnic-dbm at apnic.net 20000216
>source: APNIC
>
>person: Weon Kim
>address: Korea Network Information Center (KRNIC)
>address: **************** Important Notice **********************
>address: KRNIC is the National Internet Registry.
>address: If you want to find detail assignment information
>address: about above IP address, please use "http://whois.nic.or.kr"
>address: *****************************************************
>address: Narajongkeum B/D 14F, 1328-3, Seocho-dong, Seocho-Ku
>address: Seoul, 137-070, Republic of Korea
>phone: +82-2-2186-4500
>fax-no: +82-2-2186-4496
>country: KR
>e-mail: hostmaster at nic.or.kr
>nic-hdl: WK1-AP
>mnt-by: MNT-KRNIC-AP
>changed: hostmaster at nic.or.kr 20000927
>source: APNIC
>
>person: Sangyong Ha
>address: Korea Network Information Center
>address: National Computerization Agency
>address: 128, Jukjun-lee, Suji-myun, Yongin-gun, Kyonggi-do, Korea
>address: 449-840
>phone: +82 331 289 1674
>fax-no: +82 331 284 2753
>e-mail: syha at rs.krnic.net
>nic-hdl: SH3-KR
>notify: hostmaster at rs.krnic.net
>mnt-by: MAINT-NULL
>changed: syha at rs.krnic.net 19960419
>source: APNIC
>
>person: Seungmin Lee
>address: Korea Network Information Center (KRNIC)
>address: **************** Important Notice **********************
>address: KRNIC is the National Internet Registry
>address: If you want to find detail assignment information
>address: about above IP address, please use ?http://whois.nic.or.kr"
>address: *****************************************************
>address: Narajongkeum B/D 14F, 1328-3, Seocho-dong, Seocho-Ku
>address: Seoul, 137-070, Republic of Korea
>phone: +82-2-2186-4500
>fax-no: +82-2-2186-4496
>country: KR
>e-mail: hostmaster at nic.or.kr
>nic-hdl: SL40-AP
>mnt-by: MNT-KRNIC-AP
>changed: hostmaster at nic.or.kr 20000928
>source: APNIC
>
>Which tells us that 210.96.0.0/15 is allocated to KRNIC
>
>bluebottle:~ >whois -h whois.nic.or.kr 210.96.87.189
>
>Korea Internet Information Service V1.0 ( created by KRNIC, 1999.6 )
>
>query: 210.96.87.189
>
># ENGLISH
>
>IP Address : 210.96.87.128-210.96.87.191
>Connect ISP Name : PUBNET
>Connect Date : 98804
>Registration Date : 19980808
>Network Name : CHANGSOO-E
>
>[ Organization Information ]
>Orgnization ID : ORG30441
>Name : Chang-su Elementary School
>State : KYONGGI
>Address : 117-2 Choodong-li Changsu-myun Pochun-gun
>Zip Code : 487-920
>
>[ Admin Contact Information]
>Name : Dongil Lim
>Org Name : Chang-su Elementary School
>State : KYONGGI
>Address : 117-2 Choodong-li Changsu-myun Pochun-gun
>Zip Code : 487-920
>Phone : 0357-33-0009
>Fax : 0357-33-0120
>E-Mail : kgromc at soback.kornet.ne.kr
>
>[ Technical Contact Information ]
>Name : Dongil Lim
>Org Name : Chang-su Elementary School
>Address : 117-2 Choodong-li Changsu-myun Pochun-gun
>Zip Code : 487-920
>Phone : 0357-33-0009
>Fax : 0357-33-0120
>E-Mail : kgromc at soback.kornet.ne.kr
>
>No the good folk at geektools.com have automated this process so you
>can:
>
>bluebottle:~ >whois -h whois.geektools.com 210.96.87.189
>Query: 210.96.87.189
>Registry: whois.nic.or.kr
>Results:
>
>Korea Internet Information Service V1.0 ( created by KRNIC, 1999.6 )
>
>query: 210.96.87.189
>
>
># ENGLISH
>
>IP Address : 210.96.87.128-210.96.87.191
>Connect ISP Name : PUBNET
>Connect Date : 98804
>Registration Date : 19980808
>Network Name : CHANGSOO-E
>
>[ Organization Information ]
>Orgnization ID : ORG30441
>Name : Chang-su Elementary School
>State : KYONGGI
>Address : 117-2 Choodong-li Changsu-myun Pochun-gun
>Zip Code : 487-920
>
>[ Admin Contact Information]
>Name : Dongil Lim
>Org Name : Chang-su Elementary School
>State : KYONGGI
>Address : 117-2 Choodong-li Changsu-myun Pochun-gun
>Zip Code : 487-920
>Phone : 0357-33-0009
>Fax : 0357-33-0120
>E-Mail : kgromc at soback.kornet.ne.kr
>
>
>which gets you the information in one go -- most of the time.
>Sometimes it comes unstuck because various NICs are not entirely
>consistent in how they format the entries in their own databases so
>automated tools like the geektools proxy hit sometimes hit dead ends.
>I know this because I wrote my own recursive whois lookup in perl
>before someone kindly pointed me to geektools. Anyway the point is
>that even with clever tools like those supplied by geektools you still
>need to know how to drill down through the whois databases by hand.
>
>One can also use whois for finding out information about who owns
>domain names, but coverage is much more patchy (I don't think that
>there is a whois server for .nz domain for example). However if you
>give a domain name to whois.geektools.com it will try to find a
>database to search.
>
>As you have no doubt noticed my assertion that 210/7 is Korea was
>inaccurate, it is, in fact, Asia Pacific. I happen to know (for doing
>two or three lookups a day that large chunks of 210/7 are allocated to
>Korea and that if we get an incident from this range then the odds are
>good that it is Korea. (In fact other parts of 210/7 are allocated to
>many other countries including Japan and China and possibly even New
>Zealand.
>
>
>Russell Fulton, Computer and Network Security Officer
>The University of Auckland, New Zealand
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