What is ASN AS138618?

ASN AS138618 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS138618?

AS138618 is listed under Thanachart Securities Public Company 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.

AS138618 Thanachart Securities Public Company Limited

ASN Lookup Tool

Thanachart Securities Public Company Limited thanachart.co.th

TH 3 Routes

AS Data

AS138618

AS138618 – Thanachart Securities Public Company Limited

AS Number	138618
AS Name	THANACHARTSEC-TH-AS
Organization	Thanachart Securities Public Company Limited (org-tspc1-ap)
Country	TH
Website	thanachart.co.th
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS138618 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.165.120.0/23	AS138618	Thanachart Securities Public Company Limited	Thanachart Securities Public Company Limited	512
103.165.120.0/24	AS138618	Thanachart Securities Public Company Limited	Thanachart Securities Public Company Limited	256
103.165.121.0/24	AS138618	Thanachart Securities Public Company Limited	Thanachart Securities Public Company Limited	256

Raw Whois Response

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

% Information related to 'AS138554 - AS139577'

as-block:       AS138554 - AS139577
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:  2017-12-08T06:45:58Z
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 'AS138618'

% Abuse contact for 'AS138618' is 'trinai_k@uih.co.th'

aut-num:        AS138618
as-name:        THANACHARTSEC-TH-AS
descr:          Thanachart Securities Public Company Limited
country:        TH
org:            ORG-TSPC1-AP
admin-c:        TSPC1-AP
tech-c:         TSPC1-AP
abuse-c:        AT1565-AP
mnt-lower:      MAINT-TSPCL-TH
mnt-routes:     MAINT-TSPCL-TH
mnt-by:         APNIC-HM
mnt-irt:        IRT-TSPCL-TH
last-modified:  2021-04-01T13:40:09Z
source:         APNIC

irt:            IRT-TSPCL-TH
address:        444 MBK Tower 18th, 19th Floor,Phayathai Road, Bangkok Wangmai, Pathumwan 10330
e-mail:         trinai_k@uih.co.th
abuse-mailbox:  trinai_k@uih.co.th
admin-c:        TSPC1-AP
tech-c:         TSPC1-AP
auth:           # Filtered
remarks:        trinai_k@uih.co.th was validated on 2026-07-08
mnt-by:         MAINT-TSPCL-TH
last-modified:  2026-07-08T02:35:39Z
source:         APNIC

organisation:   ORG-TSPC1-AP
org-name:       Thanachart Securities Public Company Limited
org-type:       LIR
country:        TH
address:        444 MBK Tower 18th, 19th Floor,Phayathai Road
phone:          +6627799000
fax-no:         +6622179642
e-mail:         Siripong.Saw@thanachart.co.th
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:31Z
source:         APNIC

role:           ABUSE TSPCLTH
country:        ZZ
address:        444 MBK Tower 18th, 19th Floor,Phayathai Road, Bangkok Wangmai, Pathumwan 10330
phone:          +000000000
e-mail:         trinai_k@uih.co.th
admin-c:        TSPC1-AP
tech-c:         TSPC1-AP
nic-hdl:        AT1565-AP
remarks:        Generated from irt object IRT-TSPCL-TH
remarks:        trinai_k@uih.co.th was validated on 2026-07-08
abuse-mailbox:  trinai_k@uih.co.th
mnt-by:         APNIC-ABUSE
last-modified:  2026-07-08T02:35:55Z
source:         APNIC

role:           Thanachart Securities Public Company Limited administrator
address:        444 MBK Tower 18th, 19th Floor,Phayathai Road, Bangkok Wangmai, Pathumwan 10330
country:        TH
phone:          +6627799000
fax-no:         +6622179642
e-mail:         Kunakhon.Pro@thanachart.co.th
admin-c:        TSPC1-AP
tech-c:         TSPC1-AP
nic-hdl:        TSPC1-AP
mnt-by:         MAINT-TSPCL-TH
last-modified:  2021-04-01T01:31:40Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-UK2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS138554 - AS139577",
    "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" : "2017-12-08",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS138618",
    "as_name" : "THANACHARTSEC-TH-AS",
    "description" : [ "Thanachart Securities Public Company Limited" ],
    "country" : "TH",
    "organization" : "ORG-TSPC1-AP",
    "admin_contacts" : [ "TSPC1-AP" ],
    "tech_contacts" : [ "TSPC1-AP" ],
    "abuse_contacts" : [ "AT1565-AP" ],
    "mnt_irt" : [ "IRT-TSPCL-TH" ],
    "mnt_lower" : [ "MAINT-TSPCL-TH" ],
    "mnt_routes" : [ "MAINT-TSPCL-TH" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2021-04-01",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-TSPCL-TH",
    "address" : [ "444 MBK Tower 18th, 19th Floor,Phayathai Road, Bangkok Wangmai, Pathumwan 10330" ],
    "street" : "Pathumwan",
    "city" : "Bangkok",
    "zip_code" : "10330",
    "email" : [ "trinai_k@uih.co.th" ],
    "abuse_mailbox" : [ "trinai_k@uih.co.th" ],
    "admin_contacts" : [ "TSPC1-AP" ],
    "tech_contacts" : [ "TSPC1-AP" ],
    "remarks" : [ "trinai_k@uih.co.th was validated on 2026-07-08" ],
    "mnt_by" : [ "MAINT-TSPCL-TH" ],
    "date_updated" : "2026-07-08",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-TSPC1-AP",
    "name" : "Thanachart Securities Public Company Limited",
    "type" : "LIR",
    "address" : [ "444 MBK Tower 18th, 19th Floor,Phayathai Road" ],
    "street" : "Phayathai Road",
    "country" : [ "TH" ],
    "email" : [ "Siripong.Saw@thanachart.co.th" ],
    "phone" : [ "+6627799000" ],
    "fax_no" : [ "+6622179642" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "TSPC1-AP",
    "name" : "Thanachart Securities Public Company Limited administrator",
    "address" : [ "444 MBK Tower 18th, 19th Floor,Phayathai Road, Bangkok Wangmai, Pathumwan 10330" ],
    "street" : "Pathumwan",
    "city" : "Bangkok",
    "zip_code" : "10330",
    "country" : "TH",
    "email" : [ "Kunakhon.Pro@thanachart.co.th" ],
    "phone" : [ "+6627799000" ],
    "fax_no" : [ "+6622179642" ],
    "admin_contacts" : [ "TSPC1-AP" ],
    "tech_contacts" : [ "TSPC1-AP" ],
    "mnt_by" : [ "MAINT-TSPCL-TH" ],
    "date_updated" : "2021-04-01",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "TSPC1-AP",
    "name" : "Thanachart Securities Public Company Limited administrator",
    "address" : [ "444 MBK Tower 18th, 19th Floor,Phayathai Road, Bangkok Wangmai, Pathumwan 10330" ],
    "street" : "Pathumwan",
    "city" : "Bangkok",
    "zip_code" : "10330",
    "country" : "TH",
    "email" : [ "Kunakhon.Pro@thanachart.co.th" ],
    "phone" : [ "+6627799000" ],
    "fax_no" : [ "+6622179642" ],
    "admin_contacts" : [ "TSPC1-AP" ],
    "tech_contacts" : [ "TSPC1-AP" ],
    "mnt_by" : [ "MAINT-TSPCL-TH" ],
    "date_updated" : "2021-04-01",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AT1565-AP",
    "name" : "ABUSE TSPCLTH",
    "address" : [ "444 MBK Tower 18th, 19th Floor,Phayathai Road, Bangkok Wangmai, Pathumwan 10330" ],
    "street" : "Pathumwan",
    "city" : "Bangkok",
    "zip_code" : "10330",
    "country" : "ZZ",
    "email" : [ "trinai_k@uih.co.th" ],
    "abuse_mailbox" : [ "trinai_k@uih.co.th" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "TSPC1-AP" ],
    "tech_contacts" : [ "TSPC1-AP" ],
    "remarks" : [ "Generated from irt object IRT-TSPCL-TH", "trinai_k@uih.co.th was validated on 2026-07-08" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-07-08",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS38794	UIH	TH
AS38794	United Information Highway Co.,Ltd.	TH
AS45458	SBN ISP/AWN ISP and SBN NIX/AWN NIX	TH
AS45458	SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX	TH
AS45430	SBN-IIG/AWN-IIG transit provider	TH