Observed topology

AS14877 FL-14877

Unclassified ARIN

Upstreams 2 carry this network

Downstreams 17 this network carries

Adjacent (IPv4) 19

Adjacent (IPv6) 1

Upstream graph Who carries AS14877, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS14877 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS14877: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

AS	Network	Type	Families	Paths seen
AS13536	FirstLight Fiber, Inc.	Residential	IPv4 IPv6	964
AS293	ESnet	Unclassified	IPv4	12

Transit

Downstream networks

All 17

Networks for which AS14877 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS14369	Nmax	Unclassified	IPv4	551
AS53577	Ursinus College	Unclassified	IPv4	306
AS394962	PENNSYLVANIA COLLEGE OF TECHNOLOGY	Unclassified	IPv4	140
AS26699	Muhlenberg College	Unclassified	IPv4	93
AS22192	Pennsylvania State System of Higher Education	Unclassified	IPv4	66
AS394236	Luzerne County Community College	Unclassified	IPv4	64
AS396459	County of Venango	Unclassified	IPv4	64
AS22198	Lafayette College	Unclassified	IPv4	58
AS36269	University of Scranton	Unclassified	IPv4	58
AS11395	Thiel College	Education	IPv4	57

All 17 downstreams →

Adjacency

Adjacent networks

All 19

Every AS seen directly next to AS14877 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS13536	FirstLight Fiber, Inc.	Residential	IPv4 IPv6	2,522
AS14369	Nmax	Unclassified	IPv4	551
AS53577	Ursinus College	Unclassified	IPv4	306
AS394962	PENNSYLVANIA COLLEGE OF TECHNOLOGY	Unclassified	IPv4	140
AS26699	Muhlenberg College	Unclassified	IPv4	93
AS293	ESnet	Unclassified	IPv4	68
AS22192	Pennsylvania State System of Higher Education	Unclassified	IPv4	66
AS394236	Luzerne County Community College	Unclassified	IPv4	64
AS396459	County of Venango	Unclassified	IPv4	64
AS22198	Lafayette College	Unclassified	IPv4	58

All 19 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-15 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.09M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. 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.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.