subnet.im

AS40419Austin Hadley, Sole Proprietorship

United StatesRegistryARIN

As of 11th November 2026, AS40419 (Austin Hadley, Sole Proprietorship), a network registered in the United States with ARIN, originates 1 IPv4 prefix covering 256 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 59,976th-largest of the 80,743 networks we see originating IPv4, and the 13,086th-largest of 18,754 in the United States. It is seen behind 3 upstream networks, most often AS218805 (Stacklayer Communications Limited) and AS218995 (Bobeica Mihaita David). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 75% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

3

IPv4 addresses

256

IPv6 /64s

269M

Upstream graph

The networks AS40419 is seen behind, one and two hops out, drawn from real AS paths.

AS40419Toward the internet core
Upstream graph for AS40419: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS40419Austin Hadley, So…This networkAS205941Lungu Stefan Gabr…AS218805Stacklayer Commun…AS218995Bobeica Mihaita D…AS207252Felix GassanAS214757Jakub KrsaAS6939Hurricane Electri…AS215638Cilix LimitedAS215114Stevan Durand--L'…

Networks observed one and two hops upstream of AS40419 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS40419
NetworkCountryRelationshipPathsVantage pts
AS218805Stacklayer Communications LimitedGBPeer126126
AS218995Bobeica Mihaita DavidROPeer5151
AS205941Lungu Stefan GabrielROPeer3926

Prefixes

The largest blocks AS40419 originates, widest first.

Largest prefixes originated by AS40419
PrefixAddressesVisibility
23.190.216.0/2425676/76
2a13:c8c4:4000::/36268M × /6462/63
2a0d:f900:4::/4865.5k × /6417/63
2a13:c8c4:fc07::/4865.5k × /6461/63

Routing health

How AS40419'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

  • Valid100.0%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more75.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%25.0%1

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 3 prefixes

  • /36268M × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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