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AS1436Meridian Health System

United StatesRegistryARIN

As of 10th November 2026, AS1436 (Meridian Health System), a network registered in the United States with ARIN, originates 1 IPv4 prefix covering 1k addresses. By IPv4 address space that makes it the 36,486th-largest of the 80,723 networks we see originating IPv4, and the 8,241st-largest of 18,750 in the United States. It is seen behind 3 upstream networks, most often AS3356 (Lumen (Level 3)) and AS6461 (Zayo Bandwidth), and in front of 1 downstream network. 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

1k

IPv6 /64s

0

Upstream graph

The networks AS1436 is seen behind, one and two hops out, drawn from real AS paths.

AS1436Toward the internet core
Upstream graph for AS1436: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1436Meridian Health S…This networkAS3356Lumen (Level 3)AS6461Zayo BandwidthAS62532NJEDge.Net, Inc.AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS32590Valve CorporationAS11164Internet2 I2PXAS11537Internet2

Networks observed one and two hops upstream of AS1436 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

8

adjacent networks

Upstreams
338%
Peers
450%
Downstreams
113%

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

Upstreams of AS1436
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer3838
AS6461Zayo BandwidthUSPeer3636
AS62532NJEDge.Net, Inc.USPeer42

Prefixes

The largest blocks AS1436 originates, widest first.

Largest prefixes originated by AS1436
PrefixAddressesVisibility
205.172.192.0/221k76/76

Routing health

How AS1436'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 11th Oct 2026.

No announcement by AS1436 started or stopped in this period.

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