subnet.im

AS131618Carl International Information ltd.

TaiwanRegistryAPNIC

As of 27th September 2026, AS131618 (Carl International Information ltd.), a network registered in Taiwan with APNIC, originates 16 IPv4 prefixes covering 4.1k addresses. By IPv4 address space that makes it the 17,075th-largest of the 79,525 networks we see originating IPv4, and the 94th-largest of 234 in Taiwan. It is seen behind 4 upstream networks, most often AS21859 (Zenlayer Inc) and AS3491 (PCCW Global (HK) Ltd.). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 69% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.

At a glance

IPv4 prefixes

16

IPv6 prefixes

0

IPv4 addresses

4.1k

IPv6 /64s

0

Upstream graph

The networks AS131618 is seen behind, one and two hops out, drawn from real AS paths.

AS131618Toward the internet core
Upstream graph for AS131618: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS131618Carl Internationa…This networkAS3491PCCW Global (HK) …AS7483Skycloud Computin…AS21859Zenlayer IncAS150288METAGE TECHNOLOGY…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS60068Datacamp Limited …AS2914NTT America, Inc.AS4229Zenlayer Inc

Networks observed one and two hops upstream of AS131618 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

9

adjacent networks

Upstreams
444%
Peers
556%
Downstreams
00%

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

Upstreams of AS131618
NetworkCountryRelationshipPathsVantage pts
AS21859Zenlayer IncUSPeer58665
AS3491PCCW Global (HK) Ltd.HKPeer30553
AS150288METAGE TECHNOLOGY PTE. LTD.SGPeer217
AS7483Skycloud Computing co., Ltd.TWPeer41

Prefixes

The largest blocks AS131618 originates, widest first.

Largest prefixes originated by AS131618
PrefixAddressesVisibility
45.200.132.0/2425681/81
103.103.81.0/2425681/81
103.103.82.0/2425681/81
103.103.83.0/2425681/81
103.122.225.0/2425681/81
103.122.226.0/2425681/81
103.122.227.0/2425681/81
103.129.138.0/242561/81
103.129.139.0/242561/81
103.135.118.0/2425611/81

Routing health

How AS131618'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%16
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more68.8%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%31.3%5

Prefix sizes

IPv4 — 16 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS131618 started or stopped in this period.

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