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AS393336Catalyst Host LLC

United StatesRegistryARIN

As of 11th November 2026, AS393336 (Catalyst Host LLC), a network registered in the United States with ARIN, originates 27 IPv4 prefixes covering 7.7k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 12,943rd-largest of the 80,733 networks we see originating IPv4, and the 3,792nd-largest of 18,751 in the United States. It is seen behind 2 upstream networks, most often AS401909 (MinRTT Inc) and AS29802 (HIVELOCITY, Inc.). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 55% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

27

IPv6 prefixes

6

IPv4 addresses

7.7k

IPv6 /64s

393k

Upstream graph

The networks AS393336 is seen behind, one and two hops out, drawn from real AS paths.

AS393336Toward the internet core
Upstream graph for AS393336: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS393336Catalyst Host LLCThis networkAS29802HIVELOCITY, Inc.AS401909MinRTT IncAS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS3257GTT Communication…

Networks observed one and two hops upstream of AS393336 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 AS393336
NetworkCountryRelationshipPathsVantage pts
AS401909MinRTT IncUSPeer1,220139
AS29802HIVELOCITY, Inc.USPeer139139

Prefixes

All 33

The largest blocks AS393336 originates, widest first.

Largest prefixes originated by AS393336
PrefixAddressesVisibility
173.0.4.0/221k76/76
23.163.209.0/2425655/76
23.163.210.0/2425676/76
23.163.211.0/242561/76
23.163.212.0/242561/76
23.163.213.0/242561/76
23.163.216.0/2425676/76
23.163.217.0/2425676/76
23.163.218.0/242561/76
23.163.219.0/242561/76

Routing health

How AS393336'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%33
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more54.5%18
  • Partially propagated40% to 90%3.0%1
  • Seen by few peersUnder 40%42.4%14

Prefix sizes

IPv4 — 27 prefixes

IPv6 — 6 prefixes

  • /4865.5k × /64100.0%6

Recent changes

Announcements that started or stopped since 12th Oct 2026.

31 announced and 28 withdrawn in all; the most recent are shown.

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