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AS397859TANIUM INC

United StatesRegistryARIN

As of 12th November 2026, AS397859 (TANIUM INC), a network registered in the United States with ARIN, originates 1 IPv4 prefix covering 256 addresses. By IPv4 address space that makes it the 60,015th-largest of the 80,805 networks we see originating IPv4, and the 13,098th-largest of 18,769 in the United States. It is seen behind 2 upstream networks, most often AS3356 (Lumen (Level 3)) and AS19893 (NTT Global Data Centers Americas, INC.). 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

1

IPv6 prefixes

0

IPv4 addresses

256

IPv6 /64s

0

Upstream graph

The networks AS397859 is seen behind, one and two hops out, drawn from real AS paths.

AS397859Toward the internet core
Upstream graph for AS397859: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS397859TANIUM INCThis networkAS3356Lumen (Level 3)AS19893NTT Global Data C…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS397859 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

5

adjacent networks

Upstreams
240%
Peers
360%
Downstreams
00%

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

Upstreams of AS397859
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer6868
AS19893NTT Global Data Centers Americas, INC.USPeer1010

Prefixes

The largest blocks AS397859 originates, widest first.

Largest prefixes originated by AS397859
PrefixAddressesVisibility
64.40.11.0/2425678/78

Routing health

How AS397859'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%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS397859 started or stopped in this period.

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