ASN AS45057 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS45057?

AS45057 is listed under CHINA TIETONG SHANGHAI.

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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS45057 CHINA TIETONG SHANGHAI

CHINA TIETONG SHANGHAI cnnic.cn

CN 4 Routes

AS Data

AS45057

AS45057 – CHINA TIETONG SHANGHAI

AS Number	45057
AS Name	CTTSH
Organization	CHINA TIETONG SHANGHAI (CTTSH)
Country	CN
Website	cnnic.cn
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS45057 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
222.44.111.0/24	AS45057	CHINA TIETONG SHANGHAI	China TieTong Telecommunications Corporation	256
222.44.91.0/24	AS45057	CHINA TIETONG SHANGHAI	China TieTong Telecommunications Corporation	256
222.44.35.0/24	AS45057	CHINA TIETONG SHANGHAI	China TieTong Telecommunications Corporation	256
222.44.110.0/24	AS45057	CHINA TIETONG SHANGHAI	China TieTong Telecommunications Corporation	256

Raw Whois Response

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

% Information related to 'AS45056 - AS45115'

as-block:       AS45056 - AS45115
descr:          CNNIC ASN block
country:        CN
remarks:        These AS numbers are further assigned by CNNIC
remarks:        to CNNIC members and end-users in China
admin-c:        IPAS1-AP
tech-c:         IPAS1-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNNIC-AP
last-modified:  2009-09-29T06:15:17Z
source:         APNIC

role:           CNNIC IPAS CONFEDERATION
address:        No.4, Zhongguancun No.4 South Street,
address:        Haidian District, Beijing
country:        CN
phone:          +86-010-58813000
fax-no:         +86-010-58813075
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        IPAS1-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2013-09-12T07:40:01Z
source:         APNIC

% Information related to 'AS45056 - AS46079'

as-block:       AS45056 - AS46079
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:  2009-09-29T05:48:11Z
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 'AS45057'

% Abuse contact for 'AS45057' is '494178500@qq.com'

aut-num:        AS45057
as-name:        CTTSH
descr:          CHINA TIETONG SHANGHAI
descr:          20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
country:        CN
import:         from AS9394 action pref=100; accept ANY
import:         from AS24421 action pref=100; accept ANY
export:         to AS9394 announce AS45057
export:         to AS24421 announce AS45057
admin-c:        CZ752-AP
tech-c:         QX236-AP
abuse-c:        AC1601-AP
mnt-routes:     MAINT-CNNIC-AP
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CTTSH-CN
last-modified:  2021-10-26T23:59:57Z
source:         APNIC

irt:            IRT-CTTSH-CN
address:        20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
e-mail:         494178500@qq.com
abuse-mailbox:  494178500@qq.com
admin-c:        CZ752-AP
tech-c:         CZ752-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:35:07Z
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:         CHEN ZHENHUA
nic-hdl:        CZ752-AP
e-mail:         cnisp1979@163.com
address:        20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
phone:          +86-021-51180071
fax-no:         +86-021-51010803
country:        CN
mnt-by:         MAINT-CNNIC-AP
last-modified:  2008-11-24T01:05:40Z
source:         APNIC

person:         QIU XIAOYU
nic-hdl:        QX236-AP
e-mail:         cnisp1979@163.com
address:        20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
phone:          +86-021-51221666
fax-no:         +86-021-51231566
country:        CN
mnt-by:         MAINT-CNNIC-AP
last-modified:  2008-11-24T01:10:41Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)



#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       45056 - 46079
ASName:         APNIC-AS-4-BLOCK
ASHandle:       AS45056
RegDate:        2008-03-31
Updated:        2009-10-08
Comment:        These AS numbers are not registered in the ARIN database.
Comment:        For details, refer to the APNIC Whois Database via
Comment:        WHOIS.APNIC.NET or http://wq.apnic.net/apnic-bin/whois.pl
Ref:            https://rdap.arin.net/registry/autnum/45056

ResourceLink:  https://apps.db.ripe.net/db-web-ui/query
ResourceLink:  whois.apnic.net


OrgName:        Asia Pacific Network Information Centre
OrgId:          APNIC
Address:        PO Box 3646
City:           South Brisbane
StateProv:      QLD
PostalCode:     4101
Country:        AU
RegDate:        
Updated:        2012-01-24
Ref:            https://rdap.arin.net/registry/entity/APNIC

ReferralServer:  whois://whois.apnic.net
ResourceLink:  http://wq.apnic.net/whois-search/static/search.html

OrgAbuseHandle: AWC12-ARIN
OrgAbuseName:   APNIC Whois Contact
OrgAbusePhone:  +61 7 3858 3188 
OrgAbuseEmail:  search-apnic-not-arin@apnic.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AWC12-ARIN

OrgTechHandle: AWC12-ARIN
OrgTechName:   APNIC Whois Contact
OrgTechPhone:  +61 7 3858 3188 
OrgTechEmail:  search-apnic-not-arin@apnic.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AWC12-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

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

% Information related to 'AS45056 - AS45115'

as-block:       AS45056 - AS45115
descr:          CNNIC ASN block
country:        CN
remarks:        These AS numbers are further assigned by CNNIC
remarks:        to CNNIC members and end-users in China
admin-c:        IPAS1-AP
tech-c:         IPAS1-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNNIC-AP
last-modified:  2009-09-29T06:15:17Z
source:         APNIC

role:           CNNIC IPAS CONFEDERATION
address:        No.4, Zhongguancun No.4 South Street,
address:        Haidian District, Beijing
country:        CN
phone:          +86-010-58813000
fax-no:         +86-010-58813075
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        IPAS1-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2013-09-12T07:40:01Z
source:         APNIC

% Information related to 'AS45056 - AS46079'

as-block:       AS45056 - AS46079
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:  2009-09-29T05:48:11Z
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 'AS45057'

% Abuse contact for 'AS45057' is '494178500@qq.com'

aut-num:        AS45057
as-name:        CTTSH
descr:          CHINA TIETONG SHANGHAI
descr:          20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
country:        CN
import:         from AS9394 action pref=100; accept ANY
import:         from AS24421 action pref=100; accept ANY
export:         to AS9394 announce AS45057
export:         to AS24421 announce AS45057
admin-c:        CZ752-AP
tech-c:         QX236-AP
abuse-c:        AC1601-AP
mnt-routes:     MAINT-CNNIC-AP
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CTTSH-CN
last-modified:  2021-10-26T23:59:57Z
source:         APNIC

irt:            IRT-CTTSH-CN
address:        20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
e-mail:         494178500@qq.com
abuse-mailbox:  494178500@qq.com
admin-c:        CZ752-AP
tech-c:         CZ752-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:35:07Z
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:         CHEN ZHENHUA
nic-hdl:        CZ752-AP
e-mail:         cnisp1979@163.com
address:        20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
phone:          +86-021-51180071
fax-no:         +86-021-51010803
country:        CN
mnt-by:         MAINT-CNNIC-AP
last-modified:  2008-11-24T01:05:40Z
source:         APNIC

person:         QIU XIAOYU
nic-hdl:        QX236-AP
e-mail:         cnisp1979@163.com
address:        20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI
phone:          +86-021-51221666
fax-no:         +86-021-51231566
country:        CN
mnt-by:         MAINT-CNNIC-AP
last-modified:  2008-11-24T01:10:41Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS45056 - AS45115",
    "country" : "CN",
    "description" : [ "CNNIC ASN block" ],
    "admin_contacts" : [ "IPAS1-AP" ],
    "tech_contacts" : [ "IPAS1-AP" ],
    "remarks" : [ "These AS numbers are further assigned by CNNIC", "to CNNIC members and end-users in China" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2009-09-29",
    "source" : "APNIC"
  }, {
    "as_block" : "AS45056 - AS46079",
    "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" : "2009-09-29",
    "source" : "APNIC"
  }, {
    "as_block" : "AS45056 - AS45115",
    "country" : "CN",
    "description" : [ "CNNIC ASN block" ],
    "admin_contacts" : [ "IPAS1-AP" ],
    "tech_contacts" : [ "IPAS1-AP" ],
    "remarks" : [ "These AS numbers are further assigned by CNNIC", "to CNNIC members and end-users in China" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2009-09-29",
    "source" : "APNIC"
  }, {
    "as_block" : "AS45056 - AS46079",
    "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" : "2009-09-29",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS45057",
    "as_name" : "CTTSH",
    "description" : [ "CHINA TIETONG SHANGHAI", "20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI" ],
    "country" : "CN",
    "import" : [ "from AS9394 action pref=100; accept ANY", "from AS24421 action pref=100; accept ANY" ],
    "export" : [ "to AS9394 announce AS45057", "to AS24421 announce AS45057" ],
    "admin_contacts" : [ "CZ752-AP" ],
    "tech_contacts" : [ "QX236-AP" ],
    "abuse_contacts" : [ "AC1601-AP" ],
    "mnt_irt" : [ "IRT-CTTSH-CN" ],
    "mnt_routes" : [ "MAINT-CNNIC-AP" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2021-10-26",
    "source" : "APNIC"
  }, {
    "aut_num" : "AS45057",
    "as_name" : "CTTSH",
    "description" : [ "CHINA TIETONG SHANGHAI", "20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI" ],
    "country" : "CN",
    "import" : [ "from AS9394 action pref=100; accept ANY", "from AS24421 action pref=100; accept ANY" ],
    "export" : [ "to AS9394 announce AS45057", "to AS24421 announce AS45057" ],
    "admin_contacts" : [ "CZ752-AP" ],
    "tech_contacts" : [ "QX236-AP" ],
    "abuse_contacts" : [ "AC1601-AP" ],
    "mnt_irt" : [ "IRT-CTTSH-CN" ],
    "mnt_routes" : [ "MAINT-CNNIC-AP" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2021-10-26",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-CTTSH-CN",
    "address" : [ "20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI" ],
    "street" : "Changde Road",
    "city" : "Shanghai",
    "email" : [ "494178500@qq.com" ],
    "abuse_mailbox" : [ "494178500@qq.com" ],
    "admin_contacts" : [ "CZ752-AP" ],
    "tech_contacts" : [ "CZ752-AP" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2025-11-18",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "CZ752-AP",
    "name" : "CHEN ZHENHUA",
    "address" : [ "20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI" ],
    "street" : "Changde Road",
    "city" : "Shanghai",
    "country" : "CN",
    "email" : [ "cnisp1979@163.com" ],
    "phone" : [ "+86-021-51180071" ],
    "fax_no" : [ "+86-021-51010803" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2008-11-24",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "QX236-AP",
    "name" : "QIU XIAOYU",
    "address" : [ "20F BAOHUA MANSION 1211 CHANGDE ROAD SHANGHAI" ],
    "street" : "Changde Road",
    "city" : "Shanghai",
    "country" : "CN",
    "email" : [ "cnisp1979@163.com" ],
    "phone" : [ "+86-021-51221666" ],
    "fax_no" : [ "+86-021-51231566" ],
    "mnt_by" : [ "MAINT-CNNIC-AP" ],
    "date_updated" : "2008-11-24",
    "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
AS24421	SHANGHAI NETWORK ACCESS POINT	CN
AS9394	China TieTong Telecommunications Corporation	CN

Upstreams

AS Number	Description	Country
AS9394	China TieTong Telecommunications Corporation	CN

Contacts

Email Contacts

ipas@cnnic.cn 494178500@qq.com helpdesk@apnic.net cnisp1979@163.com

Abuse Contacts

494178500@qq.com

ASN Lookup Tool

ASN Summary