subnet.im

AS213845Cylix Pte. Ltd.

SingaporeRegistryRIPE NCCTypeEyeball

As of 24th October 2026, AS213845 (Cylix Pte. Ltd.), an access network registered in Singapore with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses. By IPv4 address space that makes it the 59,186th-largest of the 79,671 networks we see originating IPv4, and the 350th-largest of 443 in Singapore. It is seen behind 1 upstream network, most often AS137409 (GSL Networks Pty LTD), and in front of 1 downstream network. 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

1

IPv6 prefixes

0

IPv4 addresses

256

IPv6 /64s

0

Upstream graph

The networks AS213845 is seen behind, one and two hops out, drawn from real AS paths.

AS213845Toward the internet core
Upstream graph for AS213845: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS213845Cylix Pte. Ltd.This networkAS137409GSL Networks Pty …AS8529Zain Omantel Inte…AS32590Valve Corporation

Networks observed one and two hops upstream of AS213845 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
125%
Peers
250%
Downstreams
125%

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

Upstreams of AS213845
NetworkCountryRelationshipPathsVantage pts
AS137409GSL Networks Pty LTDAUPeer32276

Prefixes

The largest blocks AS213845 originates, widest first.

Largest prefixes originated by AS213845
PrefixAddressesVisibility
91.221.40.0/2425676/76

Routing health

How AS213845'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%1
  • Invalid0.0%0
  • No ROA0.0%0

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 24th Sept 2026.

No announcement by AS213845 started or stopped in this period.

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