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AS57257Zorins LLC

United StatesRegistryRIPE NCC

As of 11th November 2026, AS57257 (Zorins LLC), a network registered in the United States with RIPE NCC, originates 2 IPv6 prefixes. It is seen behind 2 upstream networks, most often AS30893 (No ACK Group Holding AB) and AS20473 (The Constant Company, LLC). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

2

IPv4 addresses

0

IPv6 /64s

131k

Upstream graph

The networks AS57257 is seen behind, one and two hops out, drawn from real AS paths.

AS57257Toward the internet core
Upstream graph for AS57257: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS57257Zorins LLCThis networkAS20473The Constant Comp…AS30893No ACK Group Hold…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS6939Hurricane Electri…AS39889Fredrik Holmqvist

Networks observed one and two hops upstream of AS57257 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 AS57257
NetworkCountryRelationshipPathsVantage pts
AS30893No ACK Group Holding ABSEPeer7437
AS20473The Constant Company, LLCUSPeer5226

Prefixes

The largest blocks AS57257 originates, widest first.

Largest prefixes originated by AS57257
PrefixAddressesVisibility
2602:fed2:7117::/4865.5k × /6463/63
2a0f:9400:6112::/4865.5k × /6463/63

Routing health

How AS57257'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%2
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS57257 started or stopped in this period.

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