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Autonomous System

AS140638

China Telecom

Announced IPs
14,848
CIDR prefixes
15
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
117.61.72.0/21 2.0K
0.0%
Chinanet 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
117.61.76.0/22 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 49,009 2026-09-07 13:01:29
117.61.64.0/23 48,635 2026-09-07 13:02:55
117.61.62.0/23 48,486 2026-09-07 13:03:03
36.113.217.0/24 23,306 2026-09-07 13:09:43
36.113.216.0/24 23,268 2026-09-07 13:09:43
36.113.182.0/24 23,268 2026-09-07 13:09:43
36.113.183.0/24 23,260 2026-09-07 13:09:43
36.113.218.0/24 23,210 2026-09-07 13:09:43
36.113.180.0/24 23,208 2026-09-07 13:09:43
36.113.179.0/24 23,205 2026-09-07 13:09:43
36.113.219.0/24 23,189 2026-09-07 13:09:43
36.113.215.0/24 23,173 2026-09-07 13:09:43
36.113.181.0/24 23,167 2026-09-07 13:09:43
36.113.211.0/24 23,165 2026-09-07 13:09:43
36.113.212.0/24 23,165 2026-09-07 13:09:43
36.113.210.0/24 23,150 2026-09-07 13:09:43
36.113.178.0/24 23,125 2026-09-07 13:09:43
117.61.56.0/21 22,979 2026-09-07 13:01:17
117.61.151.0/24 22,924 2026-09-07 13:01:26
117.61.150.0/24 22,906 2026-09-07 13:01:19
117.61.147.0/24 22,880 2026-09-07 13:01:49
117.61.149.0/24 22,861 2026-09-07 13:01:58
117.61.148.0/24 22,853 2026-09-07 13:01:54
117.61.15.0/24 22,853 2026-09-07 13:02:00
117.61.7.0/24 22,826 2026-09-07 13:02:02
117.61.13.0/24 22,811 2026-09-07 13:01:50
117.61.146.0/24 22,796 2026-09-07 13:01:44
117.61.143.0/24 22,789 2026-09-07 13:02:08
117.61.134.0/24 22,775 2026-09-07 13:02:26
117.61.14.0/24 22,773 2026-09-07 13:01:55
117.61.67.0/24 22,765 2026-09-07 13:02:27
117.61.0.0/20 22,751 2026-09-07 13:02:22
117.61.0.0/24 22,744 2026-09-07 13:02:27
117.61.61.0/24 22,738 2026-09-07 13:03:05
117.61.66.0/24 22,723 2026-09-07 13:02:25
117.61.60.0/24 22,690 2026-09-07 13:03:01
117.61.6.0/24 22,688 2026-09-07 13:02:22
117.61.1.0/24 2,590 2026-09-07 03:49:46
117.61.2.0/24 2,584 2026-09-07 03:49:46
117.61.78.0/24 1,260 2026-09-07 13:02:14
117.61.79.0/24 1,243 2026-09-07 13:01:45
117.61.76.0/24 1,183 2026-09-07 13:02:09
117.61.77.0/24 1,181 2026-09-07 13:02:12
117.61.72.0/24 952 2026-09-07 13:02:20
117.61.73.0/24 927 2026-09-07 13:02:22
117.61.74.0/24 918 2026-09-07 13:02:00
117.61.75.0/24 917 2026-09-07 13:02:05

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 14.8K IPv4 addresses distributed across 15 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: 2026-09-07 16:17:15 UTC
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