SUBNET.IM

AS1929University of Massachusetts - AMHERST

United StatesRegistryARIN

At a glance

IPv4 prefixes

5

IPv6 prefixes

1

IPv4 addresses

2.3k

IPv6 /64s

1M

Upstream graph

The networks AS1929 is seen behind, one and two hops out, drawn from real AS paths.

AS1929Toward the internet core
Upstream graph for AS1929: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1929University of Mas…This networkAS293ESnetAS1968UMASSNETAS6453TATA Communicatio…AS6939Hurricane Electri…AS174Cogent Communicat…AS3257GTT Communication…

Networks observed one and two hops upstream of AS1929 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS1929
NetworkCountryRelationshipPathsVantage pts
AS1968UMASSNETUSPeer296139
AS293ESnetUSPeer31

Prefixes

The largest blocks AS1929 originates, widest first.

Largest prefixes originated by AS1929
PrefixAddressesVisibility
205.172.168.0/221k79/80
69.16.44.0/2351279/80
69.16.44.0/242561/80
198.22.255.0/2425679/80
205.172.169.0/242561/80
2001:48e8:6400::/441M × /6460/62

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