ASN Number

  • ASN Number Registration

ASN Explained

An AS Number (Autonomous System Number) or ASN for short is a unique number assigned by an RIR (Regional Internet Registry) such as RIPE to networks that meet specific criteria.

The network applying for or requesting ASN needs to be able to demonstrate the following criteria:

  • Multi-homed Network Setup
  • IP Address Space
  • Sponsoring LIR

ASN applications require an LIR (Local Internet Registry) such as LIR SERVICES to sponsor the application with RIPE NCCWe also offer IP Address Lease to the networks that do not have their own IP space.

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Our Process

The AS Number registration process takes three working days on average, and we always prepare your application following strict standards that we have developed over the years to minimise the risk of your application being unsuccessful. 

Frequently Asked Questions

For us to prepare your ASN request for RIPE your organisation will be required to sign the “Independent Assignment Request and Maintenance Agreement“, according to the applicable RIPE policy before the ASN application can be submitted to RIPE.

We will also require a valid form of identification such as company registration documents or a government-issued ID card, or a passport in case of natural persons. 

A most common example of a multi-homed network is that it has at least two BGP capable internet connections, such us upstream ISPs.

Currently RIPE allocates 32-bit ASNs, but given proper justificationLIR SERVICES can apply for a 16-bit ASN on your behalf.

An example of a proper justification is that that either your organisation’s or your organisation’s upstream provider use the network equipment does not support 32-bit ASNs.

The ASN will be assigned to your organisation directly, and LIR SERVICES act as an LIR sponsor. Your organisation will be able to edit the ASN entry in RIPE whois directly, without our intervention. However, if you are not sure of something and need help, please do not hesitate to get in touch with us.

Currently, RIPE requires that organisations requesting an ASN Number already have either a /24 of IPv4 address space or a /48 of IPv6 address space. 

If your organisation does not currently own IP address space themselves, we also offer IP Address Lease


ASN Registration and Sponsoring

100 Annually

If you would like further information about the services that we provide or you have any questions about IPv4 addresses, please do not hesitate to get in touch.