Adjacent networks

AS399855 KEYSTONEREN

Unclassified ARIN

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS399855 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS11537	Internet2	Unclassified	IPv4 IPv6	662
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	471
AS11164	Internet2	Education	IPv4 IPv6	356
AS22644	Thomas Jefferson University Hospitals, Inc.	Unclassified	IPv4 IPv6	272
AS398663	Shippensburg University	Unclassified	IPv4 IPv6	152
AS3999	The Pennsylvania State University	Education	IPv4 IPv6	119
AS9	Carnegie Mellon University	Unclassified	IPv4 IPv6	98
AS398564	Pennsylvania Western University	Unclassified	IPv4	97
AS7150	Commonwealth University of Pennsylvania	Education	IPv4	70
AS398813	Millersville University of Pennsylvania	Unclassified	IPv4	70
AS397913	East Stroudsburg University of Pennsylvania	Unclassified	IPv4	60
AS394170	Susquehanna University	Unclassified	IPv4	55
AS31746	Franklin and Marshall College	Unclassified	IPv4	54
AS4130	University of Pittsburgh	Education	IPv4 IPv6	53
AS22192	Pennsylvania State System of Higher Education	Unclassified	IPv4	45
AS62989	Indiana University of Pennsylvania	Unclassified	IPv4 IPv6	44
AS396955	Internet2	Unclassified	IPv4	39
AS398537	Kutztown University	Unclassified	IPv4	39
AS398643	Slippery Rock University of Pennsylvania	Unclassified	IPv4	39
AS398655	Pennsylvania Western University	Unclassified	IPv4	32
AS398774	Pennsylvania Western University	Unclassified	IPv4	23
AS394962	PENNSYLVANIA COLLEGE OF TECHNOLOGY	Unclassified	IPv4	22
AS398850	Cheyney University Of Pennsylvania	Unclassified	IPv4	14
AS22198	Lafayette College	Unclassified	IPv4	12
AS19395	Bucks County Community College	Unclassified	IPv4	10
AS11395	Thiel College	Education	IPv4	9
AS26699	Muhlenberg College	Unclassified	IPv4	9
AS36269	University of Scranton	Unclassified	IPv4	9
AS16794	Thaddeus Stevens College of Technology	Unclassified	IPv4	8
AS32744	Montgomery County Community College	Unclassified	IPv4	8
AS6522	Lehigh University	Education	IPv4	6
AS10448	Villanova University	Education	IPv4	6

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 2026-10-19 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.