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AS152194CTG Server Limited

Hong Kong SAR ChinaRegistryAPNIC

As of 26th September 2026, AS152194 (CTG Server Limited), a network registered in Hong Kong SAR China with APNIC, originates 656 IPv4 prefixes covering 293k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 996th-largest of the 79,516 networks we see originating IPv4, and the 17th-largest of 734 in Hong Kong SAR China. It is seen behind 27 upstream networks, most often AS3491 (PCCW Global (HK) Ltd.) and AS2914 (NTT America, Inc.), and in front of 4 downstream networks. 93% 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 3 prefixes are also originated by another network.

At a glance

IPv4 prefixes

656

IPv6 prefixes

3

IPv4 addresses

293k

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…AS17476CloudRadium (HK) …AS38880Micron21 Datacent…AS3130RGnet OUAS49544i3D.net B.VAS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS6453TATA Communicatio…AS35280F5 Networks SARLAS1299Arelion (fka. Tel…

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

95

adjacent networks

Upstreams
2728%
Peers
6467%
Downstreams
44%

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

Upstreams of AS152194
NetworkCountryRelationshipPathsVantage pts
AS3491PCCW Global (HK) Ltd.HKPeer39,19880
AS2914NTT America, Inc.USPeer5,222136
AS17476CloudRadium (HK) LimitedHKPeer1,02569
AS7713PT Telkom Indonesia TbkIDPeer8042
AS38880Micron21 Datacentre Pty LtdAUPeer7952
AS51847Nearoute LimitedHKPeer49481
AS24482SG.GSSGPeer4832
AS132337AxclusiveSGPeer4782
AS49544i3D.net B.VNLPeer4772
AS215859Hetzner Cloud - SingaporeDEPeer4091

Prefixes

All 659

The largest blocks AS152194 originates, widest first.

Largest prefixes originated by AS152194
PrefixAddressesVisibility
134.122.128.0/1732.8k81/81
137.220.128.0/1732.8k81/81
112.213.96.0/198.2k81/81
121.127.224.0/198.2k81/81
134.122.160.0/198.2k81/81
134.122.192.0/198.2k81/81
134.122.224.0/198.2k81/81
134.122.144.0/204.1k81/81
210.56.48.0/204.1k81/81
121.54.168.0/212k81/81

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%616
  • Invalid0.0%0
  • No ROA6.5%43

Propagation

  • Globally propagated90% of full-feed peers or more97.4%642
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%2.6%17

Prefix sizes

IPv4 — 656 prefixes

IPv6 — 3 prefixes

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

Recent changes

Announcements that started or stopped since 28th Aug 2026.

8 announced and 5 withdrawn in all; the most recent are shown.

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