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AS63477Coniferous Systems, LLC

United StatesRegistryARIN

As of 11th November 2026, AS63477 (Coniferous Systems, LLC), a network registered in the United States with ARIN, originates 1 IPv4 prefix covering 256 addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 59,982nd-largest of the 80,747 networks we see originating IPv4, and the 13,089th-largest of 18,752 in the United States. It is seen behind 2 upstream networks, most often AS1003 (andrewnet) and AS6939 (Hurricane Electric LLC). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 67% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

2

IPv4 addresses

256

IPv6 /64s

131k

Upstream graph

The networks AS63477 is seen behind, one and two hops out, drawn from real AS paths.

AS63477Toward the internet core
Upstream graph for AS63477: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS63477Coniferous System…This networkAS1003andrewnetAS6939Hurricane Electri…AS807FORK SYSTEMSAS20130Depaul UniversityAS132337Axclusive

Networks observed one and two hops upstream of AS63477 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

7

adjacent networks

Upstreams
229%
Peers
571%
Downstreams
00%

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

Upstreams of AS63477
NetworkCountryRelationshipPathsVantage pts
AS1003andrewnetUSPeer137137
AS6939Hurricane Electric LLCUSAdjacent4242

Prefixes

The largest blocks AS63477 originates, widest first.

Largest prefixes originated by AS63477
PrefixAddressesVisibility
155.103.251.0/2425675/76
2602:f542:70::/4865.5k × /6442/63
2602:f542:bee::/4865.5k × /6462/63

Routing health

How AS63477'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%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more66.7%2
  • Partially propagated40% to 90%33.3%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

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.