Autonomous System

AS23764

CTGNet

CTGNet Hong Kong 🌐 chinatelecomglobal.com

Announced IPs

51,200

CIDR prefixes

123

ASN

AS23764

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

53/100

Caution

How this score is built

Baseline (neutral) 65
Active-threat / abuse risk −12
Trust score 53 / 100

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS23764 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

Prefix	Origin ASNs	Last detected (UTC)
0.0.0.0/0	AS23764, AS37468, AS61568	2026-11-05 20:08:00

Network profile

Source: PeeringDB →

Network type NSP

Geographic scope Global

Traffic ratio Balanced

Peering policy Selective

IRR record AS-CTGNET

Present at 39 internet exchanges: BNIX, JINX: JINX Peering, NIX.CZ: Public peering VLAN, AMS-IX, HKIX: HKIX Peering LAN, TPIX-TW, Netnod Stockholm GREEN -- MTU1500: STH-A -- MTU1500, Netnod Stockholm BLUE -- MTU1500: STH-B -- MTU1500, KINX, NL-ix: Main, …

Website ↗ Looking glass ↗

Top CIDR ranges

CIDR	IPs	PTR Density	Organization	Country	State	City
202.55.8.0/21	2.0K	1.1%	CTGNet	HK	—	—
203.196.8.0/21	2.0K	0.0%	CTGNet	CN	—	—
210.48.136.0/21	2.0K	0.4%	CTGNet	HK	—	—
5.154.144.0/22	1.0K	0.0%	CTGNet	GB	—	—
5.154.156.0/22	1.0K	3.6%	CTGNet	GB	—	—
125.93.24.0/22	1.0K	0.0%	CTGNet	CN	—	—
131.221.80.0/22	1.0K	0.3%	CTGNet	BR	São Paulo	São Paulo
154.72.40.0/22	1.0K	0.0%	CTGNet	ZA	Gauteng	Kempton Park
203.12.200.0/22	1.0K	0.1%	CTGNet	HK	—	—
203.14.188.0/22	1.0K	0.6%	CTGNet	HK	—	—
203.19.32.0/22	1.0K	0.1%	CTGNet	CN	—	—
203.20.140.0/22	1.0K	0.0%	CTGNet	CN	—	—
203.80.136.0/22	1.0K	0.1%	CTGNet	CN	—	—
5.154.154.0/23	512	28.7%	CTGNet	GB	—	—
5.154.158.0/23	512	0.0%	CTGNet	GB	—	—
45.195.4.0/23	512	0.2%	CTGNet	SC	—	—
45.196.24.0/23	512	0.0%	CTGNet	SC	—	—
69.194.172.0/23	512	0.0%	CTGNet	HK	—	—
79.139.4.0/23	512	0.0%	CTGNet	GB	—	—
79.139.10.0/23	512	0.0%	CTGNet	GB	—	—
102.217.166.0/23	512	0.0%	CTGNet	ZA	Gauteng	Sandton
202.55.2.0/23	512	1.0%	CTGNet	HK	—	—
202.55.6.0/23	512	0.2%	CTGNet	HK	—	—
202.55.16.0/23	512	0.0%	CTGNet	HK	—	—
203.12.204.0/23	512	0.0%	CTGNet	HK	—	—
203.15.116.0/23	512	0.0%	CTGNet	CN	—	—
203.19.34.0/23	512	0.0%	CTGNet	HK	—	—
203.20.136.0/23	512	0.0%	CTGNet	CN	—	—
203.33.8.0/23	512	0.0%	CTGNet	CN	—	—
203.34.196.0/23	512	0.0%	CTGNet	CN	—	—
203.81.6.0/23	512	0.0%	CTGNet	CN	—	—
203.82.18.0/23	512	0.0%	CTGNet	CN	—	—
203.86.126.0/23	512	0.0%	CTGNet	CN	—	—
203.89.10.0/23	512	0.0%	CTGNet	CN	—	—
203.99.10.0/23	512	0.0%	CTGNet	CN	—	—
203.119.124.0/23	512	0.0%	CTGNet	CN	—	—
203.144.104.0/23	512	0.0%	CTGNet	CN	—	—
203.196.12.0/23	512	0.0%	CTGNet	HK	—	—
203.196.14.0/23	512	0.0%	CTGNet	SG	—	—
218.30.62.0/23	512	1.0%	CTGNet	CN	—	—
220.174.26.0/23	512	0.0%	CTGNet	CN	—	—
220.174.94.0/23	512	0.0%	CTGNet	CN	—	—
220.247.140.0/23	512	0.0%	CTGNet	CN	—	—
5.10.136.0/24	256	0.4%	CTGNet	GB	—	—
5.154.130.0/24	256	0.0%	CTGNet	GB	—	—
5.154.155.0/24	256	10.5%	CTGNet	GB	—	—
5.154.157.0/24	256	2.3%	CTGNet	GB	—	—
45.195.4.0/24	256	0.4%	CTGNet	ZA	—	—
45.195.5.0/24	256	0.0%	CTGNet	KE	—	—
45.195.7.0/24	256	0.0%	CTGNet	SC	—	—
45.196.27.0/24	256	0.0%	CTGNet	SC	—	—
61.186.2.0/24	256	0.4%	CTGNet	CN	—	—
63.140.4.0/24	256	0.0%	CTGNet	HK	—	—
63.140.8.0/24	256	0.0%	CTGNet	HK	—	—
63.140.14.0/24	256	0.0%	CTGNet	HK	—	—
69.194.163.0/24	256	0.0%	CTGNet	HK	—	—
69.194.171.0/24	256	0.0%	CTGNet	HK	—	—
69.194.175.0/24	256	2.0%	CTGNet	HK	—	—
79.139.4.0/24	256	0.0%	CTGNet	GB	—	—
79.139.5.0/24	256	0.0%	CTGNet	DE	—	—
79.139.6.0/24	256	0.0%	CTGNet	GB	—	—
79.139.8.0/24	256	0.0%	CTGNet	GB	—	—
79.139.10.0/24	256	0.0%	CTGNet	DE	—	—
79.139.11.0/24	256	0.0%	CTGNet	GB	—	—
79.139.13.0/24	256	0.0%	CTGNet	GB	—	—
79.139.14.0/24	256	0.0%	CTGNet	GB	—	—
95.130.192.0/24	256	2.3%	CTGNet	GB	—	—
95.130.194.0/24	256	0.0%	CTGNet	GB	—	—
95.130.199.0/24	256	0.4%	CTGNet	GB	—	—
102.217.164.0/24	256	0.0%	CTGNet	ZA	—	—
102.217.166.0/24	256	0.0%	CTGNet	ZA	Gauteng	Sandton
102.217.167.0/24	256	0.0%	CTGNet	KE	—	—
121.59.38.0/24	256	0.0%	CTGNet	CN	—	—
121.59.100.0/24	256	0.0%	CTGNet	CN	—	—
121.59.106.0/24	256	0.4%	CTGNet	CN	—	—
121.59.109.0/24	256	0.0%	CTGNet	CN	—	—
121.59.120.0/24	256	0.0%	CTGNet	CN	—	—
121.59.122.0/24	256	0.0%	CTGNet	CN	—	—
121.59.124.0/24	256	0.0%	CTGNet	CN	—	—
121.59.140.0/24	256	0.0%	CTGNet	CN	—	—
139.189.127.0/24	256	0.0%	CTGNet	CN	—	—
145.14.64.0/24	256	0.0%	CTGNet	GB	—	—
145.14.69.0/24	256	0.0%	CTGNet	GB	—	—
145.14.79.0/24	256	0.0%	CTGNet	GB	—	—
145.14.92.0/24	256	0.0%	CTGNet	GB	—	—
147.78.133.0/24	256	0.0%	CTGNet	AE	—	—
147.78.135.0/24	256	0.0%	CTGNet	AE	—	—
154.72.40.0/24	256	0.0%	CTGNet	ZA	Gauteng	Kempton Park
154.72.41.0/24	256	0.0%	CTGNet	KE	—	—
154.72.42.0/24	256	0.0%	CTGNet	KE	—	—
154.72.43.0/24	256	0.0%	CTGNet	ZA	Gauteng	Kempton Park
154.72.45.0/24	256	0.0%	CTGNet	ZA	—	—
154.72.46.0/24	256	0.8%	CTGNet	ZA	Gauteng	Sandton
154.209.21.0/24	256	0.0%	CTGNet	SC	—	—
154.209.23.0/24	256	0.0%	CTGNet	SC	—	—
156.238.20.0/24	256	0.0%	CTGNet	SC	—	—
156.242.4.0/24	256	0.0%	CTGNet	SC	—	—
156.242.8.0/24	256	0.0%	CTGNet	SC	—	—
183.91.51.0/24	256	0.0%	CTGNet	HK	—	—
183.91.63.0/24	256	0.4%	CTGNet	HK	—	—

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS23764 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

Prefix	Announcement samples	Last seen
145.14.79.0/24	201,366	2026-11-06 22:05:06
183.91.63.0/24	200,928	2026-11-06 23:39:48
69.194.175.0/24	197,405	2026-11-06 23:34:47
121.59.106.0/24	197,237	2026-11-06 23:39:48
145.14.92.0/24	196,855	2026-11-06 23:39:48
121.59.100.0/24	196,694	2026-11-06 23:39:48
121.59.38.0/24	196,561	2026-11-06 23:39:48
121.59.120.0/24	195,906	2026-11-06 23:39:48
121.59.122.0/24	195,808	2026-11-06 23:39:48
121.59.124.0/24	195,774	2026-11-06 23:39:48
154.209.23.0/24	195,155	2026-11-06 23:39:48
69.194.163.0/24	194,618	2026-11-06 23:34:47
63.140.8.0/24	193,515	2026-11-06 23:34:47
63.140.4.0/24	193,283	2026-11-06 23:34:47
202.55.8.0/21	192,332	2026-11-06 23:39:48
121.59.140.0/24	191,916	2026-11-06 23:39:48
202.55.17.0/24	190,446	2026-11-06 23:39:48
63.140.14.0/24	188,827	2026-11-06 23:34:47
139.189.127.0/24	188,689	2026-11-06 23:39:48
5.10.136.0/24	182,628	2026-11-06 23:39:40
203.15.117.0/24	181,935	2026-11-06 23:39:48
203.15.118.0/24	180,702	2026-11-06 23:39:48
79.139.8.0/24	179,804	2026-11-06 22:04:28
203.12.200.0/24	179,143	2026-11-06 23:39:48
203.12.205.0/24	178,742	2026-11-06 23:39:48
203.12.201.0/24	178,617	2026-11-06 23:39:48
203.12.204.0/24	178,315	2026-11-06 23:39:48
5.154.145.0/24	178,154	2026-11-06 23:12:40
5.154.147.0/24	178,139	2026-11-06 23:12:40
5.154.144.0/24	178,133	2026-11-06 23:12:40
5.154.146.0/24	178,129	2026-11-06 23:12:40
203.15.113.0/24	177,887	2026-11-06 23:39:48
203.12.202.0/24	177,708	2026-11-06 23:39:48
203.12.203.0/24	177,207	2026-11-06 23:39:48
203.33.10.0/24	177,006	2026-11-06 23:39:48
203.33.8.0/24	176,971	2026-11-06 23:39:48
203.33.9.0/24	176,778	2026-11-06 23:39:48
203.14.190.0/24	176,665	2026-11-06 23:39:48
203.19.32.0/22	176,662	2026-11-06 23:39:48
203.14.188.0/24	176,441	2026-11-06 23:39:48
203.14.189.0/24	176,389	2026-11-06 23:39:48
203.19.37.0/24	176,226	2026-11-06 23:39:48
203.19.38.0/24	176,137	2026-11-06 23:39:48
203.14.191.0/24	175,858	2026-11-06 23:39:48
203.15.116.0/24	175,190	2026-11-06 23:39:48
203.20.137.0/24	174,802	2026-11-06 23:39:48
145.14.64.0/24	173,690	2026-11-06 22:05:06
145.14.69.0/24	173,627	2026-11-06 22:05:06
203.20.136.0/24	173,400	2026-11-06 23:39:48
203.34.196.0/24	171,858	2026-11-06 23:39:48

Showing top 50 of 192 announced prefixes by sample volume.

Frequently Asked Questions

What is AS23764?

AS23764 is an Autonomous System Number assigned to CTGNet. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS23764 announce?

AS23764 announces 51.2K IPv4 addresses distributed across 123 routed CIDR prefixes. The network is registered in Hong Kong.

Who operates AS23764?

AS23764 is operated by CTGNet. The organization is based in Hong Kong. You can view all IP ranges and related ASNs on the organization page.

What country is AS23764 registered in?

AS23764 is registered in Hong Kong. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-06 23:39:05 UTC