subnet.im

AS1767Indiana Higher Education Telecommunication System (IHETS)

United StatesRegistryARINTypeCarrier

As of 22nd October 2026, AS1767 (Indiana Higher Education…), a transit carrier registered in the United States with ARIN, originates 38 IPv4 prefixes covering 186k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 1,433rd-largest of the 79,663 networks we see originating IPv4, and the 411th-largest of 18,476 in the United States. It is seen behind 1 upstream network, most often AS19782 (Indiana University (GigaPOP)), and in front of 18 downstream networks. 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

38

IPv6 prefixes

4

IPv4 addresses

186k

IPv6 /64s

17M

Upstream graph

The networks AS1767 is seen behind, one and two hops out, drawn from real AS paths.

AS1767Toward the internet core
Upstream graph for AS1767: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1767Indiana Higher Ed…This networkAS19782Indiana Universit…AS2381WiscNetAS6939Hurricane Electri…

Networks observed one and two hops upstream of AS1767 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

38

adjacent networks

Upstreams
13%
Peers
1950%
Downstreams
1847%

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

Upstreams of AS1767
NetworkCountryRelationshipPathsVantage pts
AS19782Indiana University (GigaPOP)USPeer6,482141

Prefixes

All 42

The largest blocks AS1767 originates, widest first.

Largest prefixes originated by AS1767
PrefixAddressesVisibility
157.91.0.0/1665.5k77/77
199.8.0.0/1665.5k77/77
163.120.0.0/1816.4k77/77
152.228.0.0/198.2k77/77
161.32.0.0/198.2k77/77
199.8.0.0/204.1k77/77
216.162.48.0/204.1k77/77
199.8.80.0/212k77/77
64.189.120.0/221k77/77
199.8.96.0/221k77/77

Routing health

How AS1767'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%42

Propagation

  • Globally propagated90% of full-feed peers or more100.0%42
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 38 prefixes

IPv6 — 4 prefixes

  • /4016.8M × /6425.0%1
  • /4865.5k × /6475.0%3

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS1767 started or stopped in this period.

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