Adjacent networks
AS21509 APOLLONYC - Apollo Management, L.P.
Unclassified ARIN
Adjacency
Adjacent networks
Every AS seen directly next to AS21509 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 293 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 124 |
| AS3910 | CenturyLink Communications, LLC | Unclassified | IPv4 | 119 |
| AS17762 | Tata Teleservices Maharashtra Ltd | Unclassified | IPv4 | 32 |
| AS9498 | BHARTI Airtel Ltd. | Mobile | IPv4 | 28 |
| AS5580 | GTT Communications Netherlands B.V. | Transit | IPv4 | 1 |
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.
Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.