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AS33226Summa Health

United StatesRegistryARIN

As of 10th November 2026, AS33226 (Summa Health), a network registered in the United States with ARIN, originates 6 IPv4 prefixes covering 7.9k addresses. By IPv4 address space that makes it the 12,784th-largest of the 80,733 networks we see originating IPv4, and the 3,751st-largest of 18,751 in the United States. It is seen behind 2 upstream networks, most often AS198949 (Radware) and AS14230 (ARK Data Centers LLC). None of its announcements have a valid RPKI ROA. 83% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

6

IPv6 prefixes

0

IPv4 addresses

7.9k

IPv6 /64s

0

Upstream graph

The networks AS33226 is seen behind, one and two hops out, drawn from real AS paths.

AS33226Toward the internet core
Upstream graph for AS33226: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS33226Summa HealthThis networkAS14230ARK Data Centers …AS198949RadwareAS3356Lumen (Level 3)AS6461Zayo BandwidthAS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS33226 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 AS33226
NetworkCountryRelationshipPathsVantage pts
AS198949RadwareILPeer30576
AS14230ARK Data Centers LLCUSPeer7676

Prefixes

The largest blocks AS33226 originates, widest first.

Largest prefixes originated by AS33226
PrefixAddressesVisibility
199.83.64.0/204.1k1/76
199.83.64.0/212k76/76
199.83.72.0/221k76/76
199.83.69.0/2425676/76
199.83.71.0/2425676/76
199.83.73.0/2425676/76

Routing health

How AS33226'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 more83.3%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%16.7%1

Prefix sizes

IPv4 — 6 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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