$ query “AS23764” --type=asn → 1 result(s)

AS23764 · CTGNET

China Telecom Global Limited

AS23764 is owned by China Telecom Global Limited and is a major transit provider, registered in Hong Kong SAR China. The system announces a respectable 50 432 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Hong Kong SAR China, with additional presence in Singapore and China, and smaller footprints in 17 additional countries. Prefix announcements for this AS were recently updated.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #37 by Reach — Top 100 by customer cone size
  • #4 in Hong Kong SAR China — Top 10 by reach within country

Basic Information

Country
🇭🇰 Hong Kong SAR China
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
October 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
181 / 121
IPv6 Prefixes (raw / aggregated)
29 / 29
IPv4 Addresses
50 432
Largest IPv4 Prefix
/21 (2 048 addresses)
Largest IPv6 Prefix
/48
Geolocated Countries
🇭🇰 Hong Kong SAR China (22 784 IPs), 🇸🇬 Singapore (5 120 IPs), 🇨🇳 China (3 584 IPs) and 17 more
Prefix Changed
October 10, 2026

Reputation

Reputation
Good — 3 flagged IPs out of 50 432 total (0.01%)
Open Proxies
1 known open proxies in this network

Connectivity Summary

Upstream Providers
16 upstreams providing transit
Peers
628 networks exchanging traffic without transit
Downstream Customers
247 downstreams buying transit
Unclassified
16 unclassified BGP neighbors
Degree
907 unique BGP neighbors
Reach
2 483 networks in customer cone

Upstream Providers (16)

  • AS6939 — HURRICANE
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS7713 — TELKOMNET-AS-AP
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS8966 — ETISALAT-AS
  • AS3320 — DTAG (Tier-1 transit)
  • AS3491 — PCCWG-APAC-HK (Tier-1 transit)
  • AS6762 — SEABONE-NET (Tier-1 transit)
  • and 6 more

Prefix Lists

IPv4 Prefixes (181 total)

  • 202.55.8.0/21 (2 048 addresses (/21 prefix))
  • 203.196.8.0/21 (2 048 addresses (/21 prefix))
  • 210.48.136.0/21 (2 048 addresses (/21 prefix))
  • 5.154.144.0/22 (1 024 addresses (/22 prefix))
  • 5.154.156.0/22 (1 024 addresses (/22 prefix))
  • 125.93.24.0/22 (1 024 addresses (/22 prefix))
  • 131.221.80.0/22 (1 024 addresses (/22 prefix))
  • 154.72.40.0/22 (1 024 addresses (/22 prefix))
  • 203.12.200.0/22 (1 024 addresses (/22 prefix))
  • 203.14.188.0/22 (1 024 addresses (/22 prefix))
  • 203.19.32.0/22 (1 024 addresses (/22 prefix))
  • 203.20.140.0/22 (1 024 addresses (/22 prefix))
  • 203.80.136.0/22 (1 024 addresses (/22 prefix))
  • 5.154.154.0/23 (512 addresses (/23 prefix))
  • 45.195.4.0/23 (512 addresses (/23 prefix))
  • 45.196.24.0/23 (512 addresses (/23 prefix))
  • 69.194.172.0/23 (512 addresses (/23 prefix))
  • 79.139.4.0/23 (512 addresses (/23 prefix))
  • 79.139.10.0/23 (512 addresses (/23 prefix))
  • 102.217.166.0/23 (512 addresses (/23 prefix))
  • 202.55.2.0/23 (512 addresses (/23 prefix))
  • 202.55.6.0/23 (512 addresses (/23 prefix))
  • 202.55.16.0/23 (512 addresses (/23 prefix))
  • 203.12.204.0/23 (512 addresses (/23 prefix))
  • 203.15.116.0/23 (512 addresses (/23 prefix))
  • 203.20.136.0/23 (512 addresses (/23 prefix))
  • 203.33.8.0/23 (512 addresses (/23 prefix))
  • 203.34.196.0/23 (512 addresses (/23 prefix))
  • 203.82.18.0/23 (512 addresses (/23 prefix))
  • 203.86.126.0/23 (512 addresses (/23 prefix))
  • 203.89.10.0/23 (512 addresses (/23 prefix))
  • 203.99.10.0/23 (512 addresses (/23 prefix))
  • 203.119.124.0/23 (512 addresses (/23 prefix))
  • 203.144.104.0/23 (512 addresses (/23 prefix))
  • 218.30.62.0/23 (512 addresses (/23 prefix))
  • 220.174.26.0/23 (512 addresses (/23 prefix))
  • 220.174.94.0/23 (512 addresses (/23 prefix))
  • 220.247.140.0/23 (512 addresses (/23 prefix))
  • 5.10.136.0/24 (256 addresses (/24 prefix))
  • 5.154.130.0/24 (256 addresses (/24 prefix))
  • 45.195.7.0/24 (256 addresses (/24 prefix))
  • 45.196.27.0/24 (256 addresses (/24 prefix))
  • 61.186.2.0/24 (256 addresses (/24 prefix))
  • 63.140.4.0/24 (256 addresses (/24 prefix))
  • 63.140.8.0/24 (256 addresses (/24 prefix))
  • 63.140.14.0/24 (256 addresses (/24 prefix))
  • 69.194.163.0/24 (256 addresses (/24 prefix))
  • 69.194.171.0/24 (256 addresses (/24 prefix))
  • 69.194.175.0/24 (256 addresses (/24 prefix))
  • 79.139.6.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (29 total)

  • 2400:9380:9002::/48
  • 2400:9380:9115::/48
  • 2400:9380:9116::/48
  • 2400:9380:9206::/48
  • 2400:9380:a003::/48
  • 2400:9380:a00a::/48
  • 2400:9380:a00c::/48
  • 2400:9380:a014::/48
  • 2400:9380:a016::/48
  • 2400:9380:a01f::/48
  • 2400:9380:a022::/48
  • 2400:9380:a028::/48
  • 2400:9380:a042::/48
  • 2400:9380:a110::/48
  • 240e:97d:8000::/48
  • 2804:1e48:9001::/48
  • 2804:1e48:9003::/48
  • 2a04:f580:9001::/48
  • 2a04:f580:9090::/48
  • 2a04:f581:110b::/48
  • 2a04:f581:a123::/48
  • 2a04:f581:a125::/48
  • 2c0f:f7a8:1::/48
  • 2c0f:f7a8:2::/48
  • 2c0f:f7a8:24::/48
  • 2c0f:f7a8:29::/48
  • 2c0f:f7a8:37::/48
  • 2c0f:f7a8:47::/48
  • 2c0f:f7a8:9011::/48