Adjacent networks
AS21549 IRON-MOUNTAIN
Unclassified ARIN
Adjacency
Adjacent networks
Every AS seen directly next to AS21549 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS12025 | Iron Mountain Data Center | Unclassified | IPv4 | 644 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 177 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 | 50 |
| AS7922 | Comcast Cable Communications, LLC | Residential | IPv4 | 9 |
| AS33650 | Comcast Cable Communications, LLC | Unclassified | IPv4 | 5 |
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 2026-10-22 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.12M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.