Observed topology

AS400511 CWAVEFIBER

Unclassified ARIN

Upstreams 3 carry this network

Downstreams 7 this network carries

Adjacent (IPv4) 10

Adjacent (IPv6) 3

Upstream graph Who carries AS400511, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS400511 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS400511: 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
AS174	Cogent Communications, LLC	Transit	IPv4 IPv6	5,323
AS3257	GTT Communications Inc.	Transit	IPv4 IPv6	3,539
AS22646	Hargray Communications Group, Inc.	Residential	IPv4	288

Transit

Downstream networks

inferred

Networks for which AS400511 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS53956	Northeast Florida Long Distance Co., Inc.	Unclassified	IPv4	406
AS46121	Florida Technology Managed Services, Inc.	Unclassified	IPv4	108
AS36581	Hearst-Argyle Television, Inc.	Unclassified	IPv4	69
AS393348	Southern Union Conference of Seventh day Adventists	Unclassified	IPv4	51
AS54998	St. Josephs/Candler Health System, Inc.	Unclassified	IPv4	24
AS54099	City of Savannah	Unclassified	IPv4	14
AS32119	Wesleyan School, Inc.	Unclassified	IPv4 IPv6	13

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS400511 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS174	Cogent Communications, LLC	Transit	IPv4 IPv6	5,786
AS3257	GTT Communications Inc.	Transit	IPv4 IPv6	3,761
AS53956	Northeast Florida Long Distance Co., Inc.	Unclassified	IPv4	406
AS22646	Hargray Communications Group, Inc.	Residential	IPv4	288
AS46121	Florida Technology Managed Services, Inc.	Unclassified	IPv4	108
AS36581	Hearst-Argyle Television, Inc.	Unclassified	IPv4	69
AS393348	Southern Union Conference of Seventh day Adventists	Unclassified	IPv4	51
AS54998	St. Josephs/Candler Health System, Inc.	Unclassified	IPv4	24
AS54099	City of Savannah	Unclassified	IPv4	14
AS32119	Wesleyan School, Inc.	Unclassified	IPv4 IPv6	13

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M 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.