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AS number

Posted on 2012-08-31
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Last Modified: 2012-09-16
Is it possible to find the AS number with a company name?
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Question by:biggynet
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Expert Comment

by:aburr
ID: 38356657
yes
but it would help if one knew what you mean by AS number
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viki2000 earned 2000 total points
ID: 38356726
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Author Comment

by:biggynet
ID: 38357661
AS = Autonomous System
All I have is the name of the company and I am just wondering if it is possible to find out their public AS number.
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LVL 27

Expert Comment

by:aburr
ID: 38357787
"All I have is the name of the company and I am just wondering if it is possible to find out their public AS number."
Ask them.
Most company web sites have an e-mail address. (but I am working with a company now who does not answer)
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Author Comment

by:biggynet
ID: 38358029
I am trying to figure out if there is another way to get the AS # without asking the company.
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Assisted Solution

by:viki2000
viki2000 earned 2000 total points
ID: 38358289
Is not really the answer to your question, but I have read some interesting info:

http://www.iplists.com/tracking_down_spammers.html
http://compnetworking.about.com/od/traceipaddresses/g/bldef-whois.htm
https://www.arin.net/knowledge/rirs.html

Then here at Technical Info - Autonomous Systems :
https://www.arin.net/knowledge/general.html
You get the next file:
https://www.arin.net/knowledge/4byte_asns.pdf

You could ask the same question in a short email at info@arin.net

Here is a list:
ftp://ftp.arin.net/info/asn.txt

Their services:
https://www.arin.net/knowledge/services.html
http://whois.arin.net/ui

And additional info:
http://www.get4byteasn.info/index.php/Main_Page


If you know an IP or Domain Name then is easy. Only with company name, eventually if is listed somewhere in Internet Registry database.

I would ask people also at info@arin.net and HOSTMASTER@ARIN.NET
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