AS number

Posted on 2012-08-31
Last Modified: 2012-09-16
Is it possible to find the AS number with a company name?
Question by:biggynet
    LVL 26

    Expert Comment

    but it would help if one knew what you mean by AS number
    LVL 20

    Accepted Solution


    Author Comment

    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.
    LVL 26

    Expert Comment

    "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)

    Author Comment

    I am trying to figure out if there is another way to get the AS # without asking the company.
    LVL 20

    Assisted Solution

    Is not really the answer to your question, but I have read some interesting info:

    Then here at Technical Info - Autonomous Systems :
    You get the next file:

    You could ask the same question in a short email at

    Here is a list:

    Their services:

    And additional info:

    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 and HOSTMASTER@ARIN.NET

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