What is ASN AS140971?

ASN AS140971 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS140971?

AS140971 is listed under Tenaga Nasional Berhad.

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.

AS140971 Tenaga Nasional Berhad

ASN Lookup Tool

Tenaga Nasional Berhad tnb.com.my

MY 1 Routes

AS Data

AS140971

AS140971 – Tenaga Nasional Berhad

AS Number	140971
AS Name	TENAGANASIONALBERHAD-AS-AP
Organization	Tenaga Nasional Berhad (org-tnb1-ap)
Country	MY
Website	tnb.com.my
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 AS140971 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.154.14.0/23	AS140971	Tenaga Nasional Berhad	Tenaga Nasional Berhad	512

Raw Whois Response

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

% Information related to 'AS140602 - AS141625'

as-block:       AS140602 - AS141625
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:  2019-06-13T01:03:24Z
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 'AS140971'

% Abuse contact for 'AS140971' is 'ict-tns-netsupport@tnb.com.my'

aut-num:        AS140971
as-name:        TENAGANASIONALBERHAD-AS-AP
descr:          Tenaga Nasional Berhad
country:        MY
org:            ORG-TNB1-AP
admin-c:        TNBA1-AP
tech-c:         TNBA1-AP
abuse-c:        AT1262-AP
mnt-lower:      MAINT-TENAGANASIONALBERHAD-MY
mnt-routes:     MAINT-TENAGANASIONALBERHAD-MY
mnt-by:         APNIC-HM
mnt-irt:        IRT-TENAGANASIONALBERHAD-MY
last-modified:  2020-07-31T00:32:26Z
source:         APNIC

irt:            IRT-TENAGANASIONALBERHAD-MY
address:        Jalan Faraday, Bangsar, Kuala Lumpur Wilayah Perseketuan 59100
e-mail:         ict-tns-netsupport@tnb.com.my
abuse-mailbox:  ict-tns-netsupport@tnb.com.my
admin-c:        TNBA1-AP
tech-c:         TNBA1-AP
auth:           # Filtered
remarks:        ict-tns-netsupport@tnb.com.my
remarks:        ict-tns-netsupport@tnb.com.my was validated on 2026-02-17
mnt-by:         MAINT-TENAGANASIONALBERHAD-MY
last-modified:  2026-02-17T14:11:42Z
source:         APNIC

organisation:   ORG-TNB1-AP
org-name:       Tenaga Nasional Berhad
org-type:       LIR
country:        MY
address:        Jalan Faraday, Bangsar
phone:          +60-13-389-8565
e-mail:         netsupp@tnb.com.my
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:12Z
source:         APNIC

role:           ABUSE TENAGANASIONALBERHADMY
country:        ZZ
address:        Jalan Faraday, Bangsar, Kuala Lumpur Wilayah Perseketuan 59100
phone:          +000000000
e-mail:         ict-tns-netsupport@tnb.com.my
admin-c:        TNBA1-AP
tech-c:         TNBA1-AP
nic-hdl:        AT1262-AP
remarks:        Generated from irt object IRT-TENAGANASIONALBERHAD-MY
remarks:        ict-tns-netsupport@tnb.com.my was validated on 2026-02-17
abuse-mailbox:  ict-tns-netsupport@tnb.com.my
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-17T14:12:26Z
source:         APNIC

role:           Tenaga Nasional Berhad administrator
address:        Jalan Faraday, Bangsar, Kuala Lumpur Wilayah Perseketuan 59100
country:        MY
phone:          +60-13-389-8565
e-mail:         netsupp@tnb.com.my
admin-c:        TNBA1-AP
tech-c:         TNBA1-AP
nic-hdl:        TNBA1-AP
mnt-by:         MAINT-TENAGANASIONALBERHAD-MY
last-modified:  2020-07-31T00:31:31Z
source:         APNIC

% 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" : "AS140602 - AS141625",
    "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"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS140971",
    "as_name" : "TENAGANASIONALBERHAD-AS-AP",
    "description" : [ "Tenaga Nasional Berhad" ],
    "country" : "MY",
    "organization" : "ORG-TNB1-AP",
    "admin_contacts" : [ "TNBA1-AP" ],
    "tech_contacts" : [ "TNBA1-AP" ],
    "abuse_contacts" : [ "AT1262-AP" ],
    "mnt_irt" : [ "IRT-TENAGANASIONALBERHAD-MY" ],
    "mnt_lower" : [ "MAINT-TENAGANASIONALBERHAD-MY" ],
    "mnt_routes" : [ "MAINT-TENAGANASIONALBERHAD-MY" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2020-07-31",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-TENAGANASIONALBERHAD-MY",
    "address" : [ "Jalan Faraday, Bangsar, Kuala Lumpur Wilayah Perseketuan 59100" ],
    "street" : "Jalan Faraday",
    "city" : "Kuala",
    "zip_code" : "59100",
    "email" : [ "ict-tns-netsupport@tnb.com.my" ],
    "abuse_mailbox" : [ "ict-tns-netsupport@tnb.com.my" ],
    "admin_contacts" : [ "TNBA1-AP" ],
    "tech_contacts" : [ "TNBA1-AP" ],
    "remarks" : [ "ict-tns-netsupport@tnb.com.my", "ict-tns-netsupport@tnb.com.my was validated on 2026-02-17" ],
    "mnt_by" : [ "MAINT-TENAGANASIONALBERHAD-MY" ],
    "date_updated" : "2026-02-17",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-TNB1-AP",
    "name" : "Tenaga Nasional Berhad",
    "type" : "LIR",
    "address" : [ "Jalan Faraday, Bangsar" ],
    "street" : "Jalan Faraday",
    "city" : "Bangsar",
    "country" : [ "MY" ],
    "email" : [ "netsupp@tnb.com.my" ],
    "phone" : [ "+60-13-389-8565" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "TNBA1-AP",
    "name" : "Tenaga Nasional Berhad administrator",
    "address" : [ "Jalan Faraday, Bangsar, Kuala Lumpur Wilayah Perseketuan 59100" ],
    "street" : "Jalan Faraday",
    "city" : "Kuala",
    "zip_code" : "59100",
    "country" : "MY",
    "email" : [ "netsupp@tnb.com.my" ],
    "phone" : [ "+60-13-389-8565" ],
    "admin_contacts" : [ "TNBA1-AP" ],
    "tech_contacts" : [ "TNBA1-AP" ],
    "mnt_by" : [ "MAINT-TENAGANASIONALBERHAD-MY" ],
    "date_updated" : "2020-07-31",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "TNBA1-AP",
    "name" : "Tenaga Nasional Berhad administrator",
    "address" : [ "Jalan Faraday, Bangsar, Kuala Lumpur Wilayah Perseketuan 59100" ],
    "street" : "Jalan Faraday",
    "city" : "Kuala",
    "zip_code" : "59100",
    "country" : "MY",
    "email" : [ "netsupp@tnb.com.my" ],
    "phone" : [ "+60-13-389-8565" ],
    "admin_contacts" : [ "TNBA1-AP" ],
    "tech_contacts" : [ "TNBA1-AP" ],
    "mnt_by" : [ "MAINT-TENAGANASIONALBERHAD-MY" ],
    "date_updated" : "2020-07-31",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AT1262-AP",
    "name" : "ABUSE TENAGANASIONALBERHADMY",
    "address" : [ "Jalan Faraday, Bangsar, Kuala Lumpur Wilayah Perseketuan 59100" ],
    "street" : "Jalan Faraday",
    "city" : "Kuala",
    "zip_code" : "59100",
    "country" : "ZZ",
    "email" : [ "ict-tns-netsupport@tnb.com.my" ],
    "abuse_mailbox" : [ "ict-tns-netsupport@tnb.com.my" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "TNBA1-AP" ],
    "tech_contacts" : [ "TNBA1-AP" ],
    "remarks" : [ "Generated from irt object IRT-TENAGANASIONALBERHAD-MY", "ict-tns-netsupport@tnb.com.my was validated on 2026-02-17" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-02-17",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS9930	TT DOTCOM SDN BHD	MY
AS9930	TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia	MY
AS45410	ALLO TECHNOLOGY SDN. BHD.	MY