Observed topology

AS19050 TIC-DHHS-INTERIOR - U.S. Department of Health & Human Services

Unclassified ARIN

Upstreams 1 carry this network

Downstreams 7 this network carries

Adjacent (IPv4) 8

Adjacent (IPv6) 6

Upstream graph Who carries AS19050, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS19050 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS19050: 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
AS15029	U.S. Department of Health & Human Services	Unclassified	IPv4 IPv6	689

Transit

Downstream networks

inferred

Networks for which AS19050 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS70	National Library of Medicine	Unclassified	IPv4 IPv6	3,551
AS26810	U.S. Dept. of Health and Human Services	Unclassified	IPv4 IPv6	1,104
AS30387	National Institutes of Health	Unclassified	IPv4	696
AS5766	Indian Health Service	Unclassified	IPv4 IPv6	585
AS3527	National Institutes of Health	Unclassified	IPv4 IPv6	555
AS13611	U.S. Center For Disease Control and Prevention	Unclassified	IPv4	124
AS22828	United States Food and Drug Administration	Unclassified	IPv4 IPv6	92

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS19050 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS15029	U.S. Department of Health & Human Services	Unclassified	IPv4 IPv6	7,434
AS70	National Library of Medicine	Unclassified	IPv4 IPv6	3,551
AS26810	U.S. Dept. of Health and Human Services	Unclassified	IPv4 IPv6	1,104
AS30387	National Institutes of Health	Unclassified	IPv4	696
AS3527	National Institutes of Health	Unclassified	IPv4 IPv6	593
AS5766	Indian Health Service	Unclassified	IPv4 IPv6	585
AS13611	U.S. Center For Disease Control and Prevention	Unclassified	IPv4	124
AS22828	United States Food and Drug Administration	Unclassified	IPv4 IPv6	92

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.