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AS19530State of North Dakota, ITD

United StatesRegistryARIN

As of 23rd October 2026, AS19530 (State of North Dakota, ITD), a network registered in the United States with ARIN, originates 2 IPv4 prefixes covering 131k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 1,958th-largest of the 79,658 networks we see originating IPv4, and the 626th-largest of 18,483 in the United States. It is seen behind 3 upstream networks, most often AS26794 (Dakota Carrier Network) and AS11232 (Midcontinent Communications). 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

1

IPv4 addresses

131k

IPv6 /64s

4.3B

Upstream graph

The networks AS19530 is seen behind, one and two hops out, drawn from real AS paths.

AS19530Toward the internet core
Upstream graph for AS19530: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS19530State of North Da…This networkAS6263State of North Da…AS11232Midcontinent Comm…AS26794Dakota Carrier Ne…AS57Northern Lights G…AS6461Zayo BandwidthAS6939Hurricane Electri…AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS19530 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 AS19530
NetworkCountryRelationshipPathsVantage pts
AS26794Dakota Carrier NetworkUSPeer12985
AS11232Midcontinent CommunicationsUSPeer8554
AS6263State of North Dakota, Information Technology DepartmentUSPeer42

Prefixes

The largest blocks AS19530 originates, widest first.

Largest prefixes originated by AS19530
PrefixAddressesVisibility
134.129.0.0/1665.5k77/77
165.234.0.0/1665.5k77/77
2001:4930::/324.3B × /6464/64

Routing health

How AS19530'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%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS19530 started or stopped in this period.

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