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Autonomous System

AS140638

China Telecom

Announced IPs
12,800
CIDR prefixes
13
ASN
AS140638

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.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
117.61.0.0/20 4.1K
0.0%
China Telecom CN
117.61.56.0/21 2.0K
0.0%
China Telecom CN
36.113.180.0/22 1.0K
0.0%
China Telecom CN
36.113.216.0/22 1.0K
0.0%
China Telecom CN
117.61.64.0/22 1.0K
0.0%
China Telecom CN
117.61.148.0/22 1.0K
0.0%
China Telecom CN
36.113.178.0/23 512
0.0%
China Telecom CN
36.113.210.0/23 512
0.0%
China Telecom CN
117.61.146.0/23 512
0.0%
China Telecom CN
36.113.212.0/24 256
0.0%
China Telecom CN
36.113.215.0/24 256
0.0%
China Telecom CN
117.61.134.0/24 256
0.0%
China Telecom CN
117.61.143.0/24 256
0.0%
China Telecom CN

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS140638 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
117.61.56.0/22 45,581 2026-07-24 22:08:37
117.61.64.0/23 45,202 2026-07-24 22:08:34
117.61.62.0/23 45,115 2026-07-24 22:08:37
117.61.56.0/21 19,574 2026-07-24 22:08:34
117.61.150.0/24 19,513 2026-07-24 22:08:34
117.61.151.0/24 19,497 2026-07-24 22:08:37
117.61.15.0/24 19,447 2026-07-24 22:08:34
117.61.7.0/24 19,438 2026-07-24 22:08:34
117.61.147.0/24 19,433 2026-07-24 22:08:34
117.61.148.0/24 19,424 2026-07-24 22:07:00
117.61.13.0/24 19,419 2026-07-24 22:07:00
117.61.143.0/24 19,405 2026-07-24 22:08:34
117.61.0.0/20 19,401 2026-07-24 22:08:34
117.61.149.0/24 19,401 2026-07-24 22:07:00
117.61.146.0/24 19,386 2026-07-24 22:08:34
117.61.14.0/24 19,360 2026-07-24 22:08:34
117.61.134.0/24 19,346 2026-07-24 22:08:34
117.61.67.0/24 19,338 2026-07-24 22:08:37
117.61.0.0/24 19,323 2026-07-24 22:07:00
117.61.6.0/24 19,320 2026-07-24 22:08:34
117.61.66.0/24 19,298 2026-07-24 22:08:34
117.61.61.0/24 19,288 2026-07-24 22:08:37
117.61.60.0/24 19,279 2026-07-24 22:08:34
36.113.182.0/24 17,961 2026-07-24 22:08:34
36.113.216.0/24 17,960 2026-07-24 22:08:34
36.113.183.0/24 17,956 2026-07-24 22:08:34
36.113.217.0/24 17,953 2026-07-24 22:08:34
36.113.218.0/24 17,930 2026-07-24 22:08:34
36.113.180.0/24 17,901 2026-07-24 22:08:37
36.113.219.0/24 17,895 2026-07-24 22:08:34
36.113.181.0/24 17,880 2026-07-24 22:08:34
36.113.215.0/24 17,879 2026-07-24 22:08:34
36.113.212.0/24 17,877 2026-07-24 22:08:34
36.113.178.0/24 17,873 2026-07-24 22:08:37
36.113.179.0/24 17,868 2026-07-24 22:08:34
36.113.211.0/24 17,858 2026-07-24 22:08:34
36.113.210.0/24 17,853 2026-07-24 22:08:34

Frequently Asked Questions

What is AS140638?

AS140638 is an Autonomous System Number assigned to China Telecom. 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 AS140638 announce?

AS140638 announces 12.8K IPv4 addresses distributed across 13 routed CIDR prefixes. The network is registered in China.

Who operates AS140638?

AS140638 is operated by China Telecom. The organization is based in China. You can view all IP ranges and related ASNs on the organization page.

What country is AS140638 registered in?

AS140638 is registered in China. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 22:55:31 UTC
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