ASN AS7640 is an Autonomous System Number used to identify a network for BGP internet routing.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS7640 China International Trust & Investment Corporation Management Information Center

Q: Who manages ASN AS7640?

AS7640 is listed under China International Trust & Investment Corporation Management Information Center.

ASN Lookup Tool

China International Trust & Investment Corporation Management Information Center citic.com

CN 1 Routes

AS Data

AS7640

AS7640 – China International Trust & Investment Corporation Management Information Center

AS Number	7640
AS Name	CITICNET
Organization	China International Trust & Investment Corporation Management Information Center
Country	CN
Website	citic.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS7640 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
210.73.96.0/20	AS7640	China International Trust & Investment Corporation Management Information Center	CITIC Group Management Information Department	4096

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS7467 - AS7722'

as-block:       AS7467 - AS7722
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2008-09-04T06:40:26Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS7638 - AS7641'

as-block:       AS7638 - AS7641
descr:          China Internet Network Information Center
country:        CN
remarks:        These AS numbers are further assigned by
remarks:        CNNIC to CNNIC members and end-users
remarks:        in the CNNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNNIC-AP
last-modified:  2017-06-22T03:06:51Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS7640'

% Abuse contact for 'AS7640' is 'jixh@citic.com'

aut-num:        AS7640
as-name:        CITICNET
descr:          China International Trust & Investment Corporation Management Information Center
country:        CN
admin-c:        TT232-AP
tech-c:         YL577-AP
abuse-c:        AC1601-AP
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CITICNET-CN
last-modified:  2023-11-28T00:58:39Z
source:         APNIC

irt:            IRT-CITICNET-CN
address:        Capital Mansion No.6,Xinyuan Nanlu Chaoyang District
e-mail:         jixh@citic.com
abuse-mailbox:  jixh@citic.com
admin-c:        TT232-AP
tech-c:         TT232-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:35:08Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        ipas@cnnic.cn is invalid
abuse-mailbox:  ipas@cnnic.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Tan Tao
nic-hdl:        TT232-AP
e-mail:         tantao@citic.com
address:        CITIC Group
address:        Management Information Department
address:        Network & Equipment Division
address:        Capital Mansion No.6,Xinyuan Nanlu Chaoyang District,
address:        Beijing,100004 P.R.China
phone:          +86-10-59661019
fax-no:         +86-10-59661066
country:        CN
mnt-by:         MAINT-CNNIC-AP
last-modified:  2008-09-04T07:29:19Z
source:         APNIC

person:         Yan Li
nic-hdl:        YL577-AP
e-mail:         yanli@citic.com
address:        CITIC Group
address:        Management Information Department
address:        Network & Equipment Division
address:        Capital Mansion No.6,Xinyuan Nanlu Chaoyang District,
address:        Beijing,100004 P.R.China
phone:          +86-10-59661010
fax-no:         +86-10-59661066
country:        CN
mnt-by:         MAINT-CNNIC-AP
last-modified:  2008-09-04T07:29:19Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS7467 - AS7722",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC"
  }, {
    "as_block" : "AS7638 - AS7641",
    "country" : "CN",
    "description" : [ "China Internet Network Information Center" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by", "CNNIC to CNNIC members and end-users", "in the CNNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2017-06-22",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS7640",
    "as_name" : "CITICNET",
    "description" : [ "China International Trust & Investment Corporation Management Information Center" ],
    "country" : "CN",
    "admin_contacts" : [ "TT232-AP" ],
    "tech_contacts" : [ "YL577-AP" ],
    "abuse_contacts" : [ "AC1601-AP" ],
    "mnt_irt" : [ "IRT-CITICNET-CN" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2023-11-28",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-CITICNET-CN",
    "address" : [ "Capital Mansion No.6,Xinyuan Nanlu Chaoyang District" ],
    "street" : "Xinyuan Nanlu",
    "city" : "Chaoyang District",
    "email" : [ "jixh@citic.com" ],
    "abuse_mailbox" : [ "jixh@citic.com" ],
    "admin_contacts" : [ "TT232-AP" ],
    "tech_contacts" : [ "TT232-AP" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2025-11-18",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "TT232-AP",
    "name" : "Tan Tao",
    "address" : [ "CITIC Group", "Management Information Department", "Network & Equipment Division", "Capital Mansion No.6,Xinyuan Nanlu Chaoyang District,", "Beijing,100004 P.R.China" ],
    "street" : "Xinyuan Nanlu",
    "city" : "P.r.china",
    "zip_code" : "100004",
    "country" : "CN",
    "email" : [ "tantao@citic.com" ],
    "phone" : [ "+86-10-59661019" ],
    "fax_no" : [ "+86-10-59661066" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "YL577-AP",
    "name" : "Yan Li",
    "address" : [ "CITIC Group", "Management Information Department", "Network & Equipment Division", "Capital Mansion No.6,Xinyuan Nanlu Chaoyang District,", "Beijing,100004 P.R.China" ],
    "street" : "Xinyuan Nanlu",
    "city" : "P.r.china",
    "zip_code" : "100004",
    "country" : "CN",
    "email" : [ "yanli@citic.com" ],
    "phone" : [ "+86-10-59661010" ],
    "fax_no" : [ "+86-10-59661066" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AC1601-AP",
    "name" : "ABUSE CNNICCN",
    "address" : [ "Beijing, China" ],
    "city" : "Beijing",
    "country" : "ZZ",
    "email" : [ "ipas@cnnic.cn" ],
    "abuse_mailbox" : [ "ipas@cnnic.cn" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "IP50-AP" ],
    "tech_contacts" : [ "IP50-AP" ],
    "remarks" : [ "Generated from irt object IRT-CNNIC-CN", "ipas@cnnic.cn is invalid" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2025-09-19",
    "source" : "APNIC",
    "addressCountry" : "CHINA"
  } ]
}

Peers

AS Number	Description	Country
AS4847	China Networks Inter-Exchange	CN
AS4847	Connect to Sprint Link Intl and Global Sprint Link	CN

Upstreams

AS Number	Description	Country
AS4847	Connect to Sprint Link Intl and Global Sprint Link	CN

Contacts

Email Contacts

ipas@cnnic.cn jixh@citic.com tantao@citic.com yanli@citic.com

Abuse Contacts

jixh@citic.com