Home » How to obtain a unique autonomous system (AS) number

How to obtain a unique autonomous system (AS) number

To obtain a unique autonomous system (AS) number for use in a Border Gateway Protocol (BGP) network, you will need to follow these steps:

  1. Determine the appropriate regional internet registry (RIR) for your region. There are five RIRs globally, and each is responsible for issuing AS numbers within a specific region:
  • African Network Information Center (AFRINIC)
  • American Registry for Internet Numbers (ARIN)
  • Asia-Pacific Network Information Centre (APNIC)
  • Latin America and Caribbean Network Information Centre (LACNIC)
  • Réseaux IP Européens Network Coordination Centre (RIPE NCC)
  1. Visit the website of the appropriate RIR and create an account. You will typically need to provide contact information and other details about your organization.
  2. Submit a request for an AS number through the RIR’s online portal. You may need to provide additional information about your intended use of the AS number and your network infrastructure.
  3. Wait for your request to be reviewed and approved by the RIR. This process can take several days or longer, depending on the RIR’s policies and procedures.
  4. Once your request has been approved, you will be issued an AS number, which you can use to configure your BGP network.

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