What is ASN AS139743?

ASN AS139743 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS139743?

AS139743 is listed under Shen Zhen Shi Fang Technology Co., Limited.

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.

AS139743 Shen Zhen Shi Fang Technology Co., Limited

Shen Zhen Shi Fang Technology Co., Limited apjii.or.id

CN 1 Routes

AS Data

AS139743

AS139743 – Shen Zhen Shi Fang Technology Co., Limited

AS Number	139743
AS Name	SHENZHENSHIFANGTEC-AS-CN
Organization	Shen Zhen Shi Fang Technology Co., Limited (org-sa109-ap)
Country	CN
Website	apjii.or.id
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 AS139743 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.131.179.0/24	AS139743	Shen Zhen Shi Fang Technology Co., Limited	HONGKONG YUN NET JP	256

Raw Whois Response

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

% Information related to 'AS139578 - AS140601'

as-block:       AS139578 - AS140601
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:  2019-06-13T01:03:23Z
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 'AS139743'

% Abuse contact for 'AS139743' is 'liu.rodge@gmail.com'

aut-num:        AS139743
as-name:        SHENZHENSHIFANGTEC-AS-CN
descr:          Shen Zhen Shi Fang Technology Co., Limited
descr:          Qianwanyi Road
descr:          Shengang Cooperative District, Qianhai, Shenzhen China
country:        CN
org:            ORG-SA109-AP
admin-c:        HYN4-AP
tech-c:         HYN4-AP
abuse-c:        AS2570-AP
mnt-lower:      MAINT-SHENZHENSHIFANGTEC-CN
mnt-routes:     MAINT-SHENZHENSHIFANGTEC-CN
mnt-by:         APNIC-HM
mnt-irt:        IRT-SHENZHENSHIFANGTEC-CN
last-modified:  2023-08-31T10:17:24Z
export:         to AS136237 announce AS139743:AS-ALL
export:         to AS137995 announce AS139743:AS-ALL
export:         to AS58057 announce AS139743:AS-ALL
export:         to AS139726 announce AS139743:AS-ALL
export:         to AS140595 announce AS137995:AS-ALL
import:         from AS136237 accept ANY
import:         from AS139726  accept ANY
import:         from AS137995 accept ANY
import:         from AS140595  accept ANY
source:         APNIC

irt:            IRT-SHENZHENSHIFANGTEC-CN
address:        Room 201, Hong KONG quan
e-mail:         liu.rodge@gmail.com
abuse-mailbox:  liu.rodge@gmail.com
admin-c:        HYN4-AP
tech-c:         HYN4-AP
auth:           # Filtered
remarks:        liu.rodge@gmail.comwas validated on 2022-05-25
remarks:        liu.rodge@gmail.com was validated on 2025-10-29
mnt-by:         MAINT-SHENZHENSHIFANGTEC-CN
last-modified:  2025-11-18T00:32:37Z
source:         APNIC

organisation:   ORG-SA109-AP
org-name:       Shen Zhen Shi Fang Technology Co., Limited
org-type:       LIR
country:        CN
address:        Room 201, Building A, No. 1,
address:        Qianwanyi Road,
address:        Shengang Cooperative District, Qianhai, Shenzhen China
phone:          +86-13925891499
e-mail:         noc@sf-st.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:17:40Z
source:         APNIC

role:           ABUSE SHENZHENSHIFANGTECCN
country:        ZZ
address:        Room 201, Hong KONG quan
phone:          +000000000
e-mail:         liu.rodge@gmail.com
admin-c:        HYN4-AP
tech-c:         HYN4-AP
nic-hdl:        AS2570-AP
remarks:        Generated from irt object IRT-SHENZHENSHIFANGTEC-CN
remarks:        liu.rodge@gmail.com was validated on 2025-10-29
abuse-mailbox:  liu.rodge@gmail.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-29T13:45:27Z
source:         APNIC

role:           HongKong YUN NETWROK
address:        Hong Kong
country:        HK
phone:          +852-3891499
e-mail:         rodge.liu@gmail.com
admin-c:        SA1190-AP
tech-c:         SA1190-AP
nic-hdl:        HYN4-AP
mnt-by:         MAINT-SHENZHENSHIFANGTEC-CN
last-modified:  2023-08-31T10:12:45Z
source:         APNIC

% Information related to 'AS139578 - AS140601'

as-block:       AS139578 - AS140601
descr:          APNIC ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-02-15T00:06:08Z
source:         IDNIC

role:           ID-NIC ADMINISTRATORS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
admin-c:        IH288-AP
tech-c:         IH288-AP
nic-hdl:        IA55-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2026-02-25T04:06:45Z
source:         IDNIC

role:           ID-NIC HOSTMASTERS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        administrative request : admin@apjii.or.id
remarks:        IDNIC hostmasters role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IH123-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2024-07-10T05:48:59Z
source:         IDNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS139578 - AS140601",
    "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" : "2019-06-13",
    "source" : "APNIC"
  }, {
    "as_block" : "AS139578 - AS140601",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "IA55-AP" ],
    "tech_contacts" : [ "IH123-AP" ],
    "mnt_by" : [ "MNT-APJII-ID" ],
    "mnt_lower" : [ "MNT-APJII-ID" ],
    "date_updated" : "2026-02-15",
    "source" : "IDNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS139743",
    "as_name" : "SHENZHENSHIFANGTEC-AS-CN",
    "description" : [ "Shen Zhen Shi Fang Technology Co., Limited", "Qianwanyi Road", "Shengang Cooperative District, Qianhai, Shenzhen China" ],
    "country" : "CN",
    "import" : [ "from AS136237 accept ANY", "from AS139726  accept ANY", "from AS137995 accept ANY", "from AS140595  accept ANY" ],
    "export" : [ "to AS136237 announce AS139743:AS-ALL", "to AS137995 announce AS139743:AS-ALL", "to AS58057 announce AS139743:AS-ALL", "to AS139726 announce AS139743:AS-ALL", "to AS140595 announce AS137995:AS-ALL" ],
    "organization" : "ORG-SA109-AP",
    "admin_contacts" : [ "HYN4-AP" ],
    "tech_contacts" : [ "HYN4-AP" ],
    "abuse_contacts" : [ "AS2570-AP" ],
    "mnt_irt" : [ "IRT-SHENZHENSHIFANGTEC-CN" ],
    "mnt_lower" : [ "MAINT-SHENZHENSHIFANGTEC-CN" ],
    "mnt_routes" : [ "MAINT-SHENZHENSHIFANGTEC-CN" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-08-31",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-SHENZHENSHIFANGTEC-CN",
    "address" : [ "Room 201, Hong KONG quan" ],
    "city" : "Hong Kong",
    "country" : "QUAN",
    "email" : [ "liu.rodge@gmail.com" ],
    "abuse_mailbox" : [ "liu.rodge@gmail.com" ],
    "admin_contacts" : [ "HYN4-AP" ],
    "tech_contacts" : [ "HYN4-AP" ],
    "remarks" : [ "liu.rodge@gmail.comwas validated on 2022-05-25", "liu.rodge@gmail.com was validated on 2025-10-29" ],
    "mnt_by" : [ "MAINT-SHENZHENSHIFANGTEC-CN" ],
    "date_updated" : "2025-11-18",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-SA109-AP",
    "name" : "Shen Zhen Shi Fang Technology Co., Limited",
    "type" : "LIR",
    "address" : [ "Room 201, Building A, No. 1,", "Qianwanyi Road,", "Shengang Cooperative District, Qianhai, Shenzhen China" ],
    "street" : "1 Qianwanyi Road",
    "city" : "Shenzhen",
    "country" : [ "CN" ],
    "email" : [ "noc@sf-st.com" ],
    "phone" : [ "+86-13925891499" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC",
    "addressCountry" : "CHINA"
  },
  "administrative_contacts" : [ {
    "handle" : "HYN4-AP",
    "name" : "HongKong YUN NETWROK",
    "address" : [ "Hong Kong" ],
    "country" : "HK",
    "email" : [ "rodge.liu@gmail.com" ],
    "phone" : [ "+852-3891499" ],
    "admin_contacts" : [ "SA1190-AP" ],
    "tech_contacts" : [ "SA1190-AP" ],
    "mnt_by" : [ "MAINT-SHENZHENSHIFANGTEC-CN" ],
    "date_updated" : "2023-08-31",
    "source" : "APNIC",
    "addressCountry" : "HONG KONG"
  } ],
  "technical_contacts" : [ {
    "handle" : "HYN4-AP",
    "name" : "HongKong YUN NETWROK",
    "address" : [ "Hong Kong" ],
    "country" : "HK",
    "email" : [ "rodge.liu@gmail.com" ],
    "phone" : [ "+852-3891499" ],
    "admin_contacts" : [ "SA1190-AP" ],
    "tech_contacts" : [ "SA1190-AP" ],
    "mnt_by" : [ "MAINT-SHENZHENSHIFANGTEC-CN" ],
    "date_updated" : "2023-08-31",
    "source" : "APNIC",
    "addressCountry" : "HONG KONG"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AS2570-AP",
    "name" : "ABUSE SHENZHENSHIFANGTECCN",
    "address" : [ "Room 201, Hong KONG quan" ],
    "city" : "Hong Kong",
    "country" : "ZZ",
    "email" : [ "liu.rodge@gmail.com" ],
    "abuse_mailbox" : [ "liu.rodge@gmail.com" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "HYN4-AP" ],
    "tech_contacts" : [ "HYN4-AP" ],
    "remarks" : [ "Generated from irt object IRT-SHENZHENSHIFANGTEC-CN", "liu.rodge@gmail.com was validated on 2025-10-29" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2025-10-29",
    "source" : "APNIC",
    "addressCountry" : "QUAN"
  } ]
}

Peers

AS Number	Description	Country
AS35661	VIRTUA SYSTEMS SAS	FR
AS58057	Securebit AG	CH
AS139726	Guangdong Yunjie Communication Co., Ltd.	CN
AS137995	Shuangyu Communications Technology Co., Limited	HK
AS136237	Shanghai Shuangyu Communication Technology co.,Ltd.	HK
AS140595	YunJie Communication HK Company Limited	HK