subnet.im

AS16600University of Texas Health Science Center at Tyler

United StatesRegistryARIN

As of 10th November 2026, AS16600 (University of Texas Health Science…), a network registered in the United States with ARIN, originates 2 IPv4 prefixes covering 33k addresses. By IPv4 address space that makes it the 5,472nd-largest of the 80,733 networks we see originating IPv4, and the 1,881st-largest of 18,751 in the United States. It is seen behind 1 upstream network, most often AS6922 (Texas Department of Information…). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

0

IPv4 addresses

33k

IPv6 /64s

0

Upstream graph

The networks AS16600 is seen behind, one and two hops out, drawn from real AS paths.

AS16600Toward the internet core
Upstream graph for AS16600: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS16600University of Tex…This networkAS6922Texas Department …AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS16600 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS16600
NetworkCountryRelationshipPathsVantage pts
AS6922Texas Department of Information ResourcesUSPeer15276

Prefixes

The largest blocks AS16600 originates, widest first.

Largest prefixes originated by AS16600
PrefixAddressesVisibility
129.114.128.0/1732.8k76/76
192.88.11.0/2425676/76

Routing health

How AS16600's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS16600 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.