AS8220 ASPA — COLT Technology Services Group Limited Upstream Provider Authorization
COLT COLT Technology Services Group Limited🇬🇧
AS8220 has not published its own ASPA object, but 22 ASNs list it as an authorized upstream provider.
Peering Topology
Downstream Customers(22)
These ASNs list AS8220 as an authorized upstream provider.
| ASN | Name |
|---|---|
| AS12732 | 🇩🇪GUTCON-NET GutCon GmbH |
| AS13464 | 🇺🇸CPLP-ASN - Centerbridge Partners, L.P. |
| AS15576 | 🇨🇭NTS NTS workspace AG |
| AS21273 | 🇨🇭TEST-AS-Cust Swisscom (Schweiz) AG |
| AS23028 | 🇺🇸TEAM-CYMRU - Team Cymru Inc. |
| AS35171 | 🇪🇸uniway-AS Uniway Technologies SL |
| AS43717 | 🇫🇷UBIFRANCE-AS BUSINESS FRANCE EPIC |
| AS48884 | 🇪🇸LDA-AS Linea Directa Aseguradora, S.A. |
| AS49935 | 🇧🇪SmartEye SmartEye B.V |
| AS62392 | 🇧🇪FOSDEM FOSDEM VZW |
About ASPA - what it is and why AS8220 should publish one
ASPA (Autonomous System Provider Authorization) is a cryptographically signed RPKI object specified in the IETF draft-ietf-sidrops-aspa-profile that lets an AS declare which upstream networks are authorized to carry its traffic. Together with route origin validation (ROV), ASPA enables BGP route leak detection: routers can reject paths that traverse an unauthorized provider, which is one of the most common causes of large-scale internet outages.
AS8220 (COLT COLT Technology Services Group Limited) has not yet published an ASPA object. Publishing one is free, takes a few minutes in your RIR portal, and strengthens the routing security posture of every network that depends on you. If you only buy transit from well-known upstreams, the record is usually a short list of their ASNs.
Create an ASPA object: RIPE Portal · ARIN RPKI · APNIC MyAPNIC · ipctl.io RPKI & ROA tools
Related Tools
- RPKI & ROA Lookup — validate prefixes and check ASPA records for any ASN
- Global ASPA Adoption Statistics — transit-free ASNs, top upstream providers, adoption trends
- AS8220 Overview — prefixes, BGP routes, peers, and RPKI status