Adjacent networks
AS27370 CITYOFBOSTON
Unclassified ARIN
Adjacency
Adjacent networks
Every AS seen directly next to AS27370 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS54004 | Cablevision Lightpath LLC | Unclassified | IPv4 | 680 |
| AS27552 | TowardEX Technologies International, Inc. | Unclassified | IPv4 | 156 |
| AS46887 | Crown Castle Fiber LLC | Unclassified | IPv4 | 54 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 10 |
| AS293 | ESnet | Unclassified | 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 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.