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	Prefix	Description
	58.42.2.0/24	China Telecom
	58.42.5.0/24	China Telecom
	58.42.8.0/21	China Telecom
	58.42.9.0/24	China Telecom
	58.42.10.0/24	China Telecom
	58.42.14.0/24	China Telecom
	58.42.15.0/24	China Telecom
	58.42.48.0/20	China Telecom
	111.123.53.0/24	China Telecom
	111.123.54.0/24	China Telecom
	111.123.55.0/24	China Telecom
	111.123.56.0/21	China Telecom
	111.124.64.0/20	China Telecom
	111.124.76.0/24	China Telecom
	111.124.144.0/24	CHINANET GUIZHOU PROVINCE NETWORK
	111.124.192.0/19	CHINANET GUIZHOU PROVINCE NETWORK
	119.0.64.0/19	China Telecom
	240e:103:8b00::/44	Chinatelecom IPv6 address for network
	240e:938:a00::/44	Chinatelecom IPv6 address for IDC & Cloud service
	240e:938:a03::/48	Chinatelecom IPv6 address for IDC & Cloud service

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS4134	China Telecom Backbone	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS4134	China Telecom Backbone	✔	✔
	AS55990	Huawei Cloud Service data center	✔	✔
	AS10099	China Unicom Global	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS55990	Huawei Cloud Service data center	✔	✔

aut-num:        AS139203
as-name:        CHINANET-Guizhou-Guian-IDC
descr:          Guizhou GuiAn IDC
descr:          CHINATELECOM Guizhou Data Communication Division
descr:          550025
country:        CN
remarks:        Networks Of IDC , Chinatelecom Guizhou Province, P.R.China.
org:            ORG-CT1-AP
admin-c:        CH93-AP
tech-c:         CH93-AP
abuse-c:        AC1573-AP
mnt-lower:      MAINT-CHINANET
mnt-routes:     MAINT-CHINANET-GZ
mnt-by:         APNIC-HM
mnt-irt:        IRT-CHINANET-CN
last-modified:  2020-05-16T06:35:42Z
source:         APNIC


organisation:   ORG-CT1-AP
org-name:       China Telecom
country:        CN
address:        Data Network Management Division
address:        Network Operation & Maintenance Department
address:        No 19 Chaoyangmen North Street
address:        Dongcheng District
phone:          +86-20-38639251
fax-no:         +86-10-58501060
# Email removed, Log into bgp.tools to see whois emails
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2019-09-16T12:55:07Z
source:         APNIC

Last Update: 2025-12-26T03:22:30Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-ctgnet-cut	17840
RADB	as-ctgnet	67364