Adjacent networks
AS1742 HARVARD-UNIV
Unclassified ARIN
Adjacency
Adjacent networks
Every AS seen directly next to AS1742 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 841 |
| AS40127 | Longwood Medical and Academic Area (LMA) | Unclassified | IPv4 IPv6 | 825 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 603 |
| AS11164 | Internet2 | Education | IPv4 IPv6 | 197 |
| AS13315 | Harvard Business School | Unclassified | IPv4 | 189 |
| AS11537 | Internet2 | Unclassified | IPv4 IPv6 | 175 |
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 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.