ASN AS63749 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS63749?

AS63749 is listed under Luxoft VietNam Company LTD.

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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AS63749 Luxoft VietNam Company LTD

Luxoft VietNam Company LTD luxoft.com

VN 2 Routes

AS Data

AS63749

AS63749 – Luxoft VietNam Company LTD

AS Number	63749
AS Name	LUXOFT-AS-VN
Organization	Luxoft VietNam Company LTD (LUXOFT-AS-VN)
Country	VN
Website	luxoft.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS63749 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.66.152.0/22	AS63749	Luxoft VietNam Company LTD	Luxoft VietNam Company LTD	1024
103.66.152.0/24	AS63749	Luxoft VietNam Company LTD	Luxoft VietNam Company LTD	256

Raw Whois Response

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

% Information related to 'AS63488 - AS63999'

as-block:       AS63488 - AS63999
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:  2013-09-11T23:49:48Z
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 'AS63730 - AS63769'

as-block:       AS63730 - AS63769
descr:          VNNIC-ASBLOCK-AP
descr:          VNNIC
descr:          Vietnam Network Information Center
country:        VN
admin-c:        NTTT3-AP
tech-c:         NTTT3-AP
remarks:        Block of 20 AS numbers from 63730 - 63769
remarks:        for assignment to VNNIC members
mnt-by:         APNIC-HM
mnt-lower:      MAINT-VN-VNNIC
last-modified:  2023-04-21T06:49:58Z
source:         APNIC

person:         Nguyen Thi Thu Thuy
address:        VNNIC-VN
country:        VN
phone:          +84-2435564944
e-mail:         info@vnnic.vn
nic-hdl:        NTTT3-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2020-05-11T07:33:48Z
source:         APNIC

% Information related to 'AS63749'

% Abuse contact for 'AS63749' is 'hm-changed@vnnic.vn'

aut-num:        AS63749
as-name:        LUXOFT-AS-VN
descr:          Luxoft VietNam Company LTD
country:        VN
admin-c:        LMC19-AP
tech-c:         LTP8-AP
mnt-by:         MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
last-modified:  2016-06-27T01:40:30Z
source:         APNIC

irt:            IRT-VNNIC-AP
address:        Ha Noi, VietNam
phone:          +84-24-35564944
fax-no:         +84-24-37821462
e-mail:         hm-changed@vnnic.vn
abuse-mailbox:  hm-changed@vnnic.vn
admin-c:        NTTT1-AP
tech-c:         NTTT1-AP
auth:           # Filtered
mnt-by:         MAINT-VN-VNNIC
last-modified:  2026-04-21T02:07:47Z
source:         APNIC

person:         La Manh Cuong
address:        Luxoft VietNam Company LTD
country:        VN
phone:          +84-28-39651789
e-mail:         lmcuong@luxoft.com
nic-hdl:        LMC19-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2017-11-18T08:40:03Z
source:         APNIC

person:         Luu Thanh Phong
address:        Luxoft VietNam Company LTD
country:        VN
phone:          +84-28-39651789
e-mail:         ltphong@luxoft.com
nic-hdl:        LTP8-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2017-11-18T08:40:17Z
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:       63488 - 63828
ASName:         APNIC-ASNBLOCK-63488
ASHandle:       AS63488
RegDate:        2013-09-11
Updated:        2022-09-13
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/63488

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 'AS63488 - AS63999'

as-block:       AS63488 - AS63999
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:  2013-09-11T23:49:48Z
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 'AS63730 - AS63769'

as-block:       AS63730 - AS63769
descr:          VNNIC-ASBLOCK-AP
descr:          VNNIC
descr:          Vietnam Network Information Center
country:        VN
admin-c:        NTTT3-AP
tech-c:         NTTT3-AP
remarks:        Block of 20 AS numbers from 63730 - 63769
remarks:        for assignment to VNNIC members
mnt-by:         APNIC-HM
mnt-lower:      MAINT-VN-VNNIC
last-modified:  2023-04-21T06:49:58Z
source:         APNIC

person:         Nguyen Thi Thu Thuy
address:        VNNIC-VN
country:        VN
phone:          +84-2435564944
e-mail:         info@vnnic.vn
nic-hdl:        NTTT3-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2020-05-11T07:33:48Z
source:         APNIC

% Information related to 'AS63749'

% Abuse contact for 'AS63749' is 'hm-changed@vnnic.vn'

aut-num:        AS63749
as-name:        LUXOFT-AS-VN
descr:          Luxoft VietNam Company LTD
country:        VN
admin-c:        LMC19-AP
tech-c:         LTP8-AP
mnt-by:         MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
last-modified:  2016-06-27T01:40:30Z
source:         APNIC

irt:            IRT-VNNIC-AP
address:        Ha Noi, VietNam
phone:          +84-24-35564944
fax-no:         +84-24-37821462
e-mail:         hm-changed@vnnic.vn
abuse-mailbox:  hm-changed@vnnic.vn
admin-c:        NTTT1-AP
tech-c:         NTTT1-AP
auth:           # Filtered
mnt-by:         MAINT-VN-VNNIC
last-modified:  2026-04-21T02:07:47Z
source:         APNIC

person:         La Manh Cuong
address:        Luxoft VietNam Company LTD
country:        VN
phone:          +84-28-39651789
e-mail:         lmcuong@luxoft.com
nic-hdl:        LMC19-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2017-11-18T08:40:03Z
source:         APNIC

person:         Luu Thanh Phong
address:        Luxoft VietNam Company LTD
country:        VN
phone:          +84-28-39651789
e-mail:         ltphong@luxoft.com
nic-hdl:        LTP8-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2017-11-18T08:40:17Z
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" : "AS63488 - AS63999",
    "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" : "2013-09-11",
    "source" : "APNIC"
  }, {
    "as_block" : "AS63730 - AS63769",
    "country" : "VN",
    "description" : [ "VNNIC-ASBLOCK-AP", "VNNIC", "Vietnam Network Information Center" ],
    "admin_contacts" : [ "NTTT3-AP" ],
    "tech_contacts" : [ "NTTT3-AP" ],
    "remarks" : [ "Block of 20 AS numbers from 63730 - 63769", "for assignment to VNNIC members" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "MAINT-VN-VNNIC" ],
    "date_updated" : "2023-04-21",
    "source" : "APNIC"
  }, {
    "as_block" : "AS63488 - AS63999",
    "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" : "2013-09-11",
    "source" : "APNIC"
  }, {
    "as_block" : "AS63730 - AS63769",
    "country" : "VN",
    "description" : [ "VNNIC-ASBLOCK-AP", "VNNIC", "Vietnam Network Information Center" ],
    "admin_contacts" : [ "NTTT3-AP" ],
    "tech_contacts" : [ "NTTT3-AP" ],
    "remarks" : [ "Block of 20 AS numbers from 63730 - 63769", "for assignment to VNNIC members" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "MAINT-VN-VNNIC" ],
    "date_updated" : "2023-04-21",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS63749",
    "as_name" : "LUXOFT-AS-VN",
    "description" : [ "Luxoft VietNam Company LTD" ],
    "country" : "VN",
    "admin_contacts" : [ "LMC19-AP" ],
    "tech_contacts" : [ "LTP8-AP" ],
    "mnt_irt" : [ "IRT-VNNIC-AP" ],
    "mnt_by" : [ "MAINT-VN-VNNIC" ],
    "date_updated" : "2016-06-27",
    "source" : "APNIC"
  }, {
    "aut_num" : "AS63749",
    "as_name" : "LUXOFT-AS-VN",
    "description" : [ "Luxoft VietNam Company LTD" ],
    "country" : "VN",
    "admin_contacts" : [ "LMC19-AP" ],
    "tech_contacts" : [ "LTP8-AP" ],
    "mnt_irt" : [ "IRT-VNNIC-AP" ],
    "mnt_by" : [ "MAINT-VN-VNNIC" ],
    "date_updated" : "2016-06-27",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-VNNIC-AP",
    "address" : [ "Ha Noi, VietNam" ],
    "city" : "Ha Noi",
    "country" : "VIETNAM",
    "email" : [ "hm-changed@vnnic.vn" ],
    "abuse_mailbox" : [ "hm-changed@vnnic.vn" ],
    "phone" : [ "+84-24-35564944" ],
    "fax_no" : [ "+84-24-37821462" ],
    "admin_contacts" : [ "NTTT1-AP" ],
    "tech_contacts" : [ "NTTT1-AP" ],
    "mnt_by" : [ "MAINT-VN-VNNIC" ],
    "date_updated" : "2026-04-21",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "LMC19-AP",
    "name" : "La Manh Cuong",
    "address" : [ "Luxoft VietNam Company LTD" ],
    "country" : "VN",
    "email" : [ "lmcuong@luxoft.com" ],
    "phone" : [ "+84-28-39651789" ],
    "mnt_by" : [ "MAINT-VN-VNNIC" ],
    "date_updated" : "2017-11-18",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "LTP8-AP",
    "name" : "Luu Thanh Phong",
    "address" : [ "Luxoft VietNam Company LTD" ],
    "country" : "VN",
    "email" : [ "ltphong@luxoft.com" ],
    "phone" : [ "+84-28-39651789" ],
    "mnt_by" : [ "MAINT-VN-VNNIC" ],
    "date_updated" : "2017-11-18",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS45903	CMC Telecom Infrastructure Company	VN
AS64612
AS45899	VNPT Corp	VN

Upstreams

AS Number	Description	Country
AS45903	CMC Telecom Infrastructure Company	VN
AS64612
AS45899	VNPT Corp	VN

Downstreams

AS Number	Description	Country
AS64612

Contacts

Email Contacts

helpdesk@apnic.net ltphong@luxoft.com lmcuong@luxoft.com hm-changed@vnnic.vn

Abuse Contacts

hm-changed@vnnic.vn

ASN Lookup Tool

ASN Summary