asn.dev

Observed topology

AS8220 COLT COLT Technology Services Group Limited

Hosting RIPE

Upstreams 44 carry this network
Downstreams 1,075 this network carries
Adjacent (IPv4) 1,116
Adjacent (IPv6) 273
Upstream graph Who carries AS8220, and who carries them, drawn as a map up to the transit-free core. 49 exchanges Where AS8220 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 44

Networks observed carrying traffic for AS8220: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv61,434
AS6939Hurricane Electric LLCTransitIPv4 IPv61,321
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,303
AS1299Arelion Sweden ABTransitIPv4 IPv61,247
AS577Bell CanadaMobileIPv4 IPv6318
AS2914NTT America, Inc.TransitIPv4 IPv6222
AS852TELUS Communications Inc.ResidentialIPv4 IPv6160
AS1836green.ch AGResidentialIPv4 IPv6160
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv6160
AS6696VERIXI SAUnclassifiedIPv4 IPv6160

All 44 upstreams →

Transit

Downstream networks

All 1,075

Networks for which AS8220 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS9183Bosch Gesellschaft mit Beschraenkter HaftungUnclassifiedIPv411,360
AS15404Technology Services Group LimitedUnclassifiedIPv4 IPv68,555
AS3360DXC US Latin America CorporationUnclassifiedIPv4 IPv63,621
AS396356Latitude.shHostingIPv4 IPv63,372
AS10021KVH Co.,LtdUnclassifiedIPv4 IPv62,699
AS54253Oracle CorporationUnclassifiedIPv4 IPv62,453
AS3573Accenture LLPUnclassifiedIPv4 IPv62,391
AS48083GTN Services B.V.UnclassifiedIPv41,838
AS34471Free Technologies Excom S.L.ResidentialIPv4 IPv61,763
AS11003The Procter and Gamble CompanyUnclassifiedIPv41,674

All 1,075 downstreams →

Adjacency

Adjacent networks

All 1,116

Every AS seen directly next to AS8220 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv629,389
AS3356Level 3 Parent, LLCTransitIPv4 IPv629,241
AS6939Hurricane Electric LLCTransitIPv4 IPv624,721
AS577Bell CanadaMobileIPv4 IPv612,007
AS9183Bosch Gesellschaft mit Beschraenkter HaftungUnclassifiedIPv411,360
AS15404Technology Services Group LimitedUnclassifiedIPv4 IPv68,555
AS38001NewMedia Express Pte LtdHostingIPv4 IPv67,722
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv67,659
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv67,144
AS852TELUS Communications Inc.ResidentialIPv4 IPv66,114

All 1,116 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.