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AS397443Lower Colorado River Authority

United StatesRegistryARIN

As of 24th October 2026, AS397443 (Lower Colorado River Authority), a network registered in the United States with ARIN, originates 6 IPv4 prefixes covering 5.6k addresses. By IPv4 address space that makes it the 14,704th-largest of the 79,642 networks we see originating IPv4, and the 4,197th-largest of 18,487 in the United States. It is seen behind 2 upstream networks, most often AS6922 (Texas Department of Information…) and AS7459 (Astound (fka. Grande)). 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

6

IPv6 prefixes

0

IPv4 addresses

5.6k

IPv6 /64s

0

Upstream graph

The networks AS397443 is seen behind, one and two hops out, drawn from real AS paths.

AS397443Toward the internet core
Upstream graph for AS397443: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS397443Lower Colorado Ri…This networkAS6922Texas Department …AS7459Astound (fka. Gra…AS3356Lumen (Level 3)AS1299Arelion (fka. Tel…AS3257GTT Communication…

Networks observed one and two hops upstream of AS397443 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 AS397443
NetworkCountryRelationshipPathsVantage pts
AS6922Texas Department of Information ResourcesUSPeer38076
AS7459Astound (fka. Grande)USPeer7676

Prefixes

The largest blocks AS397443 originates, widest first.

Largest prefixes originated by AS397443
PrefixAddressesVisibility
198.214.48.0/212k76/76
198.214.240.0/212k76/76
198.214.56.0/2351276/76
198.214.248.0/2351276/76
198.214.50.0/2425676/76
198.214.51.0/2425676/76

Routing health

How AS397443'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%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 6 prefixes

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS397443 started or stopped in this period.

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