subnet.im

AS202036EXTREME COMMUNICATIONS TECHNOLOGY LIMITED

Hong Kong SAR ChinaRegistryRIPE NCC

As of 27th September 2026, AS202036 (EXTREME COMMUNICATIONS TECHNOLOGY…), a network registered in Hong Kong SAR China with RIPE NCC, originates 60 IPv4 prefixes covering 19.2k addresses. By IPv4 address space that makes it the 7,258th-largest of the 79,540 networks we see originating IPv4, and the 102nd-largest of 734 in Hong Kong SAR China. It is seen behind 5 upstream networks, most often AS135377 (UCLOUD INFORMATION TECHNOLOGY (HK)…) and AS139327 (UCLOUD INFORMATION TECHNOLOGY (HK)…). 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, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

60

IPv6 prefixes

0

IPv4 addresses

19.2k

IPv6 /64s

0

Upstream graph

The networks AS202036 is seen behind, one and two hops out, drawn from real AS paths.

AS202036Toward the internet core
Upstream graph for AS202036: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS202036EXTREME COMMUNICA…This networkAS984Octopus Web Solut…AS17497Liasail Global Ho…AS21859Zenlayer IncAS135377UCLOUD INFORMATIO…AS139327UCLOUD INFORMATIO…AS174Cogent Communicat…AS3491PCCW Global (HK) …AS4229Zenlayer IncAS2914NTT America, Inc.AS13335Cloudflare, Inc.AS17408AboveNet Communic…

Networks observed one and two hops upstream of AS202036 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

10

adjacent networks

Upstreams
550%
Peers
550%
Downstreams
00%

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

Upstreams of AS202036
NetworkCountryRelationshipPathsVantage pts
AS135377UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDHKPeer4,54482
AS139327UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDHKPeer12576
AS17497Liasail Global Hongkong LimitedHKPeer8282
AS984Octopus Web Solution Inc.USPeer8181
AS21859Zenlayer IncUSPeer8181

Prefixes

All 60

The largest blocks AS202036 originates, widest first.

Largest prefixes originated by AS202036
PrefixAddressesVisibility
154.83.104.0/212k82/82
45.201.36.0/221k82/82
103.4.100.0/2351281/82
103.14.92.0/2351282/82
156.225.2.0/2351282/82
156.225.50.0/2351282/82
202.155.64.0/2351282/82
23.137.188.0/2425682/82
23.157.236.0/2425681/82
23.160.132.0/2425681/82

Routing health

How AS202036'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%60
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%60
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 60 prefixes

Recent changes

Announcements that started or stopped since 29th Aug 2026.

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