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AS152194CTG Server Limited

Hong Kong SAR ChinaRegistryAPNIC

As of 12th November 2026, AS152194 (CTG Server Limited), a network registered in Hong Kong SAR China with APNIC, originates 659 IPv4 prefixes covering 294k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 1,011th-largest of the 80,772 networks we see originating IPv4, and the 18th-largest of 761 in Hong Kong SAR China. It is seen behind 25 upstream networks, most often AS3491 (PCCW Global (HK) Ltd.) and AS2914 (NTT America, Inc.), and in front of 3 downstream networks. 94% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 97% 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

659

IPv6 prefixes

3

IPv4 addresses

294k

IPv6 /64s

8.6B

Upstream graph

The networks AS152194 is seen behind, one and two hops out, drawn from real AS paths.

AS152194Toward the internet core
Upstream graph for AS152194: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS152194CTG Server LimitedThis networkAS2914NTT America, Inc.AS3491PCCW Global (HK) …AS7713PT Telkom Indones…AS14537Continent 8 LLCAS17476CloudRadium (HK) …AS49544i3D.net B.VAS215859Hetzner Cloud - S…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS6453TATA Communicatio…AS35280F5 Networks SARLAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS152194 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

90

adjacent networks

Upstreams
2528%
Peers
6269%
Downstreams
33%

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

Upstreams of AS152194
NetworkCountryRelationshipPathsVantage pts
AS3491PCCW Global (HK) Ltd.HKPeer36,32378
AS2914NTT America, Inc.USPeer4,844131
AS7713PT Telkom Indonesia TbkIDAdjacent7962
AS14537Continent 8 LLCUSPeer7952
AS17476CloudRadium (HK) LimitedHKPeer77069
AS51847Nearoute LimitedHKPeer47777
AS24482SG.GSSGPeer4582
AS49544i3D.net B.VNLPeer4542
AS132337AxclusiveSGAdjacent4542
AS215859Hetzner Cloud - SingaporeDEAdjacent4031

Prefixes

All 662

The largest blocks AS152194 originates, widest first.

Largest prefixes originated by AS152194
PrefixAddressesVisibility
134.122.128.0/1732.8k78/78
137.220.128.0/1732.8k78/78
112.213.96.0/198.2k78/78
121.127.224.0/198.2k78/78
134.122.160.0/198.2k78/78
134.122.192.0/198.2k78/78
134.122.224.0/198.2k78/78
134.122.144.0/204.1k78/78
210.56.48.0/204.1k78/78
121.54.168.0/212k78/78

Routing health

How AS152194'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

  • Valid93.5%619
  • Invalid0.0%0
  • No ROA6.5%43

Propagation

  • Globally propagated90% of full-feed peers or more97.1%643
  • Partially propagated40% to 90%0.2%1
  • Seen by few peersUnder 40%2.7%18

Prefix sizes

IPv4 — 659 prefixes

IPv6 — 3 prefixes

  • /324.3B × /6466.7%2
  • /49 and longerAggregated33.3%1

Recent changes

Announcements that started or stopped since 13th Oct 2026.

14 announced and 11 withdrawn in all; the most recent are shown.

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