I was recently tasked with setting up an Autonomous System Number (ASN) which is a unique number to identiy companies that want to control their own routing of public IP space. In my case, the company wants to design their network for ISP redundancy using BGP. In the United States, all ASN’s are registered through the American Regristry for Internet Numbering (ARIN). And while ARIN has instructions on how to register and ASN, they’re a bit long and overly complex. Therefore, I’ve created my own set of instructions that you can use…and hopefully answer some of the questions you may have. After using this process, ARIN gave us an ASN in just a few days!
Steps on How to Register an AS Number:
1. Create an ARIN online account.
2. Link your online account with a Point of Contact (POC) handle:
After setting up and logging in to your ARIN Online account, click on the POC Records link in the left navigation bar. Click the link Create a new POC handle link and fill out the following information:
- POC handle (use “Admin”)
- Email address
- Postal address
- Phone number
3. Create and organization ID (Org ID)
After you’ve established your POC or linked your existing POC to your account, click on the ORGANIZATION DATA link in the left navigation bar while logged in to ARIN Online. Then click the Create link and follow the step-by-step instructions provided in the form. You’ll need to provide your company’s legal business name.
After you submit this request, ARIN will give you a ticket number and it takes 2 business days to review the Org ID request. ARIN will send you a message through your ARIN Online Account so make sure to check it after the second or third business day. They may request more info at this point or grant your request for an Org ID. To see if your company’s Org IDs is associated with through your linked POC handle, click on the ORGANIZATION DATA link in the left navigation bar while logged in to your ARIN Online account.
4. Submit a request for an autonomous system number ASN
Login to your ARIN Online account and click REQUEST RESOURCES in the left navigation bar. The resulting page will list your company’s Org ID which you can manage. Select the Org ID and then select the Request Resources icon in the right-hand toolbar. You will see a list of resource request options. Select ASN Request from the list to be taken to the form to fill out. Information required here includes:
- Exterior Gateway Protocol to be used: BGP
- IP addresses currently in use: This is what ever space you currently have – It doesn’t matter if you don’t have a /24 or more at this point as you can acquire one later either through ARIN or by leasing one from one of your service providers
- AS Number of upstream providers: You can get these numbers from your ISP or find it yourself using a looking glass server.
- Provide verification (a copy of your signed ISP contract) your organization has contractually agreed to service with at least two of the upstream providers/peers listed on your request. Scan the ISP contracts into PDF documents and attach them in the online request form.
ARIN will verify receipt of your request upon successful submission by issuing a ticket number. Use TRACK TICKETS in your ARIN Online account to check on the status of your request. They will respond within 2 business days and either approve the request or ask for additional information.
5. Sign the RSA and Pay the Fee
After receiving approval confirmation and a ticket number from ARIN, you have 90 days to pay the registration fee of $500. There are two steps to this process. First, you must sign a Registration Services Agreement (RSA) and then you have to pay the fee. You can download and print a copy of the RSA here:
This is a legal document between your company and ARIN which you likely want you legal team to look at. You’ll need to fill out the following information:
- Legal business name
- ORG ID
- ARIN Online ticket number
- Authorized officier name, title, signature, phone, email and address
- Billing contact information (if different from the authorized officier)
After you fill out this form and sign it, scan the entire document and save it as a PDF file. Then attach this document to the ARIN Online ticket. ARIN will then counter sign the document and send back a copy of the form for your records.
Now that the RSA is signed, you need to pay for the ASN. To pay the $500 fee, submit a completed ASN Billing Account Form found here:
You will need the following information:
- ARIN Online ticket number
- Organization Name
- Organization ID (Org ID)
Payment information — Can pay using credit card or they’ll send you an invoice and you can mail a check. I’d recommend paying by CC if possible to speed the process up. ARIN will respond to you within 2 business days regarding the assignment of your ASN.