Upstream networks
AS109 CISCOSYSTEMS
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS109: 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 |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 2,124 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 1,787 |
| AS3491 | PCCW Global (HK) Ltd. | Transit | IPv4 IPv6 | 459 |
| AS9498 | BHARTI Airtel Ltd. | Mobile | IPv4 | 407 |
| AS4637 | Telstra Global | Unclassified | IPv4 IPv6 | 400 |
| AS1221 | Telstra Limited | Mobile | IPv4 IPv6 | 263 |
| AS701 | Verizon Business | Residential | IPv4 IPv6 | 245 |
| AS4812 | China Telecom (Group) | Residential | IPv4 | 238 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 234 |
| AS4755 | TATA Communications formerly VSNL is Leading ISP | Hosting | IPv4 IPv6 | 210 |
| AS4657 | StarHub Ltd | Residential | IPv4 IPv6 | 207 |
| AS1680 | Cellcom Fixed Line Communication L.P | Mobile | IPv4 IPv6 | 176 |
| AS2764 | AAPT Limited | Unclassified | IPv4 IPv6 | 143 |
| AS8551 | Bezeq International Ltd. | Unclassified | IPv4 | 141 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 IPv6 | 122 |
| AS17621 | China Unicom Shanghai network | Unclassified | IPv4 | 116 |
| AS7473 | Singapore Telecommunications Ltd | Unclassified | IPv4 IPv6 | 111 |
| AS11164 | Internet2 | Education | IPv4 | 50 |
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.