ASN

Q: What is an ASN and why do I need one?
An ASN (Autonomous System Number) is a unique identifier that allows your network to operate independently using the BGP (Border Gateway Protocol). You need an ASN if you want to:

• Announce IP prefixes under your control
• Peer with multiple upstream providers
• Implement custom routing policies

This is essential for ISPs, hosting providers, large enterprises, and infrastructure-focused tech users.

Q: Can DGTL.TECH help me register an ASN with RIPE?
Yes. We can guide you through the process and act as your sponsoring LIR (Local Internet Registry), which is required by RIPE for ASN requests.

Q: What documents and information are required?
To apply for an ASN through RIPE, you need:

• Two upstream providers (also known as peering partners or uplinks) who agree to establish BGP sessions with your ASN and confirm it in writing (email or LOA).
• A valid passport or government-issued ID.
• A clear technical justification for the ASN request (e.g. multihoming, traffic engineering).
• A filled-in RIPE ASN request form (we can help with this).

Q: What exactly are “uplinks” or “peering partners”?
Uplinks are existing ASNs (Autonomous Systems) that agree to route traffic to/from your ASN via BGP. These can be:

• Internet service providers
• Hosting companies
• Data centers
• Internet exchanges (IXPs)

They must agree to peer with your ASN and confirm it to RIPE (usually via email confirmation).

Q: Where can I find uplink providers?
Start with:

• Your current hosting provider or data center
• ISPs offering BGP multihoming
• Peering platforms like IXPs (e.g. LINX, DE-CIX)
• Forums such as RIPE mailing lists or PeeringDB

Q: How long does it take to get an ASN?
After submission of all required documentation:

• Review by RIPE NCC typically takes 2–4 business days
• Approval is faster if uplink confirmations are clear and complete

Q: Once I have the ASN, how do I use it?
You will:

• Configure BGP on your router or virtual router
• Establish BGP sessions with your two confirmed uplinks
• Announce your IP prefixes (can be PI space from RIPE or provider-assigned PA space)
• Ensure redundancy and routing policy enforcement per your design

Additional Notes

• You can use your ASN within RIPE service regions (Europe, Middle East, Central Asia)

DGTL.TECH offers ASN sponsorship and full application support. If you’re ready to begin or have further questions, contact us via live chat or our contact form. (end of #asn)