Upstream networks
AS19637 AVG19637
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS19637: 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 |
|---|---|---|---|---|
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 1,316 |
| AS13335 | Cloudflare, Inc. | Hosting | IPv4 | 966 |
| AS3491 | PCCW Global (HK) Ltd. | Transit | IPv4 IPv6 | 694 |
| AS8220 | COLT Technology Services Group Limited | Hosting | IPv4 IPv6 | 589 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 IPv6 | 538 |
| AS9498 | BHARTI Airtel Ltd. | Mobile | IPv4 IPv6 | 391 |
| AS8455 | atom86 BV | Hosting | IPv4 IPv6 | 351 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 285 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 199 |
| AS9584 | Diyixian.com Limited | Unclassified | IPv4 | 171 |
| AS49915 | Megaport (UK) Limited | Unclassified | IPv4 | 118 |
| AS9930 | TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia | Unclassified | IPv4 | 113 |
| AS4766 | Korea Telecom | Mobile | IPv4 | 61 |
| AS4637 | Telstra Global | Unclassified | IPv4 | 60 |
| AS9924 | Taiwan Fixed Network, Telco and Network Service Provider. | Residential | IPv4 | 58 |
| AS397142 | City of Fort Collins | Unclassified | IPv4 | 55 |
| AS7474 | SingTel Optus Pty Ltd | Unclassified | IPv4 | 52 |
| AS8866 | Vivacom Bulgaria EAD | Residential | IPv4 | 52 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 | 50 |
| AS12849 | Hot-Net internet services Ltd. | Residential | IPv4 | 35 |
| AS202940 | ITC NG ltd | Unclassified | IPv4 | 25 |
| AS28725 | CETIN a.s. | Residential | IPv4 | 17 |
| AS4788 | TM TECHNOLOGY SERVICES SDN. BHD. | Mobile | IPv4 | 13 |
| AS33667 | Comcast Cable Communications, LLC | Unclassified | IPv4 | 13 |
| AS33651 | Comcast Cable Communications, LLC | Unclassified | IPv4 | 10 |
| AS33652 | Comcast Cable Communications, LLC | Unclassified | IPv4 | 9 |
| AS1221 | Telstra Limited | Mobile | IPv4 | 7 |
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 2026-10-15 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.09M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.