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AS20228Navajo Tribal Utility Authority

United StatesRegistryARIN

As of 10th November 2026, AS20228 (Navajo Tribal Utility Authority), a network registered in the United States with ARIN, originates 3 IPv4 prefixes covering 4.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 17,372nd-largest of the 80,723 networks we see originating IPv4, and the 4,862nd-largest of 18,750 in the United States. It is seen behind 1 upstream network, most often AS6461 (Zayo Bandwidth), and in front of 1 downstream network. 25% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

4.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS20228 is seen behind, one and two hops out, drawn from real AS paths.

AS20228Toward the internet core
Upstream graph for AS20228: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20228Navajo Tribal Uti…This networkAS6461Zayo BandwidthAS2914NTT America, Inc.AS32590Valve Corporation

Networks observed one and two hops upstream of AS20228 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
125%
Peers
250%
Downstreams
125%

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

Upstreams of AS20228
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer351138

Prefixes

The largest blocks AS20228 originates, widest first.

Largest prefixes originated by AS20228
PrefixAddressesVisibility
162.219.88.0/212k76/76
66.92.68.0/221k76/76
74.117.36.0/221k76/76
2607:1140::/324.3B × /6462/63

Routing health

How AS20228'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

  • Valid25.0%1
  • Invalid0.0%0
  • No ROA75.0%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS20228 started or stopped in this period.

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