subnet.im

AS138456OceanBlue Cloud Technology Limited

Hong Kong SAR ChinaRegistryAPNIC

As of 26th September 2026, AS138456 (OceanBlue Cloud Technology Limited), a network registered in Hong Kong SAR China with APNIC, originates 16 IPv4 prefixes covering 5.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 15,300th-largest of the 79,516 networks we see originating IPv4, and the 216th-largest of 734 in Hong Kong SAR China. It is seen behind 9 upstream networks, most often AS3491 (PCCW Global (HK) Ltd.) and AS6939 (Hurricane Electric LLC). 76% of its announcements have 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

16

IPv6 prefixes

1

IPv4 addresses

5.1k

IPv6 /64s

65.5k

Upstream graph

The networks AS138456 is seen behind, one and two hops out, drawn from real AS paths.

AS138456Toward the internet core
Upstream graph for AS138456: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS138456OceanBlue Cloud T…This networkAS3491PCCW Global (HK) …AS6939Hurricane Electri…AS7713PT Telkom Indones…AS8966Etisalat (E&)AS24482SG.GSAS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS35280F5 Networks SARLAS6453TATA Communicatio…AS38623Metfone (Viettel …

Networks observed one and two hops upstream of AS138456 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

27

adjacent networks

Upstreams
933%
Peers
1867%
Downstreams
00%

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

Upstreams of AS138456
NetworkCountryRelationshipPathsVantage pts
AS3491PCCW Global (HK) Ltd.HKPeer63151
AS6939Hurricane Electric LLCUSPeer605137
AS7713PT Telkom Indonesia TbkIDPeer322
AS24482SG.GSSGPeer161
AS35280F5 Networks SARLFRPeer151
AS9002RETN LimitedGBPeer151
AS49544i3D.net B.VNLPeer151
AS8966Etisalat (E&)AEPeer151
AS132337AxclusiveSGPeer151

Prefixes

The largest blocks AS138456 originates, widest first.

Largest prefixes originated by AS138456
PrefixAddressesVisibility
38.46.158.0/2351281/81
45.202.194.0/2351281/81
154.197.52.0/2351281/81
154.213.2.0/2351281/81
38.134.174.0/2425681/81
38.247.81.0/2425681/81
45.194.96.0/2425681/81
45.195.136.0/2425681/81
45.202.196.0/2425681/81
103.126.24.0/2425681/81

Routing health

How AS138456'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

  • Valid76.5%13
  • Invalid0.0%0
  • No ROA23.5%4

Propagation

  • Globally propagated90% of full-feed peers or more100.0%17
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 16 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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