Upstream networks
AS8220 COLT COLT Technology Services Group Limited
Hosting RIPE
Transit
Upstream networks
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.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS6453 | TATA COMMUNICATIONS (AMERICA) INC | Transit | IPv4 IPv6 | 1,415 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 1,321 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 1,303 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 1,247 |
| AS577 | Bell Canada | Mobile | IPv4 IPv6 | 318 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 222 |
| AS852 | TELUS Communications Inc. | Residential | IPv4 IPv6 | 160 |
| AS1836 | green.ch AG | Residential | IPv4 IPv6 | 160 |
| AS3333 | Reseaux IP Europeens Network Coordination Centre (RIPE NCC) | Unclassified | IPv4 IPv6 | 160 |
| AS6696 | VERIXI SA | Unclassified | IPv4 IPv6 | 160 |
| AS14907 | Wikimedia Foundation Inc. | Hosting | IPv4 IPv6 | 160 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 160 |
| AS38001 | NewMedia Express Pte Ltd | Hosting | IPv4 IPv6 | 160 |
| AS42845 | BLUE SAS | Residential | IPv4 IPv6 | 160 |
| AS1764 | Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH | Unclassified | IPv4 IPv6 | 159 |
| AS42708 | Glesys AB | Unclassified | IPv4 IPv6 | 159 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv4 IPv6 | 158 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 146 |
| AS2152 | CENIC | Unclassified | IPv4 | 142 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 | 142 |
| AS6830 | Liberty Global Europe Holding B.V. | Residential | IPv4 | 142 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 142 |
| AS12552 | GlobalConnect AB | Unclassified | IPv4 | 141 |
| AS12779 | IT.Gate S.p.A. | Unclassified | IPv4 | 141 |
| AS2497 | Internet Initiative Japan Inc. | Unclassified | IPv4 | 140 |
| AS132132 | MyRepublic Ltd. | Residential | IPv4 | 139 |
| AS3741 | Dimension Data | Unclassified | IPv4 | 136 |
| AS12389 | PJSC Rostelecom | Residential | IPv4 | 102 |
| AS4637 | Telstra Global | Unclassified | IPv4 | 100 |
| AS3216 | PJSC "Vimpelcom" | Mobile | IPv4 | 40 |
| AS7575 | Australian Academic and Research Network (AARNet) | Education | IPv4 | 39 |
| AS8434 | Telenor Sverige AB | Residential | IPv4 | 38 |
| AS1273 | IDDQD-AS | Business | IPv4 | 35 |
| AS2764 | AAPT Limited | Unclassified | IPv4 IPv6 | 24 |
| AS4635 | Hong Kong Internet Exchange--Route Server 1 | Unclassified | IPv4 | 22 |
| AS20473 | The Constant Company, LLC | Hosting | IPv6 | 18 |
| AS6461 | Zayo Bandwidth | Transit | IPv6 | 7 |
| AS5511 | Orange S.A. | Transit | IPv4 | 6 |
| AS3491 | PCCW Global (HK) Ltd. | Transit | IPv4 | 4 |
| AS25180 | Exponential-E Ltd. | Unclassified | IPv4 | 4 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 IPv6 | 4 |
| AS64073 | Vetta Group | Unclassified | IPv4 IPv6 | 3 |
| AS293 | ESnet | Unclassified | IPv4 | 2 |
| AS6327 | Shaw Communications | Residential | IPv4 | 1 |
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.
Derived from routing tables collected at 2026-10-12 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.