Adjacent networks
AS40831 PHS - Mass General Brigham Incorporated
Unclassified ARIN
Adjacency
Adjacent networks
Every AS seen directly next to AS40831 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS40127 | Longwood Medical and Academic Area (LMA) | Unclassified | IPv4 | 315 |
| AS394784 | Massachusetts Eye and Ear Infirmary | Unclassified | IPv4 | 126 |
| AS46887 | Crown Castle Fiber LLC | Unclassified | IPv4 | 60 |
| AS49915 | Megaport (UK) Limited | Unclassified | IPv4 | 59 |
| AS7015 | Comcast Cable Communications, LLC | Residential | 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 2026-11-02 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.44M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.