ASN Lookup Tool

CMC Telecom Infrastructure Company cmctelecom.vn VN VN 489 Routes

AS Data

AS45903

AS45903CMC Telecom Infrastructure Company

AS Number 45903
AS Name CMCTELECOM-VN
Organization CMC Telecom Infrastructure Company()
Country VN
Website cmctelecom.vn
Number of IPv4 Routes 349
Number of IPv6 Routes 140
ASN type ISP
Registry APNIC
Date Allocated N/A

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IP Ranges

Route # IPs
101.99.44.0/23 512
202.134.23.0/24 256
2402:5300:501::/48 ~1×10²⁴
2402:5300:906::/48 ~1×10²⁴
183.91.24.0/22 1024
2402:5300:4012::/48 ~1×10²⁴
45.122.252.0/24 256
2402:5300:412::/48 ~1×10²⁴
2402:5300:4506::/48 ~1×10²⁴
183.91.8.0/21 2048

Raw Whois Response

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

% 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 'AS45894 - AS45903'

as-block:       AS45894 - AS45903
descr:          VNNIC-ASBLOCK-VN
descr:          VNNIC
descr:          Vietnam Network Information Center
country:        VN
admin-c:        NTTT3-AP
tech-c:         NTTT3-AP
remarks:        Block of 10 AS numbers from 45894 - 45903
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 'AS45903'

% Abuse contact for 'AS45903' is 'hm-changed@vnnic.vn'

aut-num:        AS45903
as-name:        CMCTELECOM-VN
descr:          CMC Telecom Infrastructure Company
descr:          CMC Tower, Duy Tan, Dich Vong Hau, Yen Hoa, Cau Giay, Hanoi, Vietnam
country:        VN
import:         from AS7643 action pref=100; accept AS45903
import:         from AS7552 action pref=100; accept AS45903
import:         from AS24086 action pref=100; accept AS45903
export:         to AS7643 announce AS45903
export:         to AS7552 announce AS45903
export:         to AS24086 announce AS45903
admin-c:        HVA2-AP
tech-c:         NVH31-AP
mnt-by:         MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
mnt-routes:     MAINT-VN-VNNIC
last-modified:  2025-05-16T04:03:58Z
abuse-c:        CTAC1-AP
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:  2025-11-17T23:08:34Z
source:         APNIC

person:         Hoang Viet Anh
address:        CMCTELECOM-VN
country:        VN
phone:          +84-366235766
e-mail:         anh.hv@cmctelecom.vn
nic-hdl:        HVA2-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2023-08-31T04:22:33Z
source:         APNIC

person:         Nguyen Van Hieu
address:        CMCTELECOM-VN
country:        VN
phone:          +84-968189689
e-mail:         hieu.nv@cmctelecom.vn
nic-hdl:        NVH31-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2022-08-28T04:27:35Z
source:         APNIC

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

Parsed Whois Response

Peers

AS Number Description Country
AS149099 HUNG THINH GROUP CORPORATION VN
AS5511 Orange S.A. FR
AS131128 Onepay Online Service and Commercial Joint Stock Company VN
AS58057 Securebit AG CH
AS38880 Micron21 Datacentre Pty Ltd AU
AS198150 SIACOM JSC GE
AS149100 SMARTMIND SECURITIES JOINT STOCK COMPANY VN
AS60144 3W Infra B.V. NL
AS23899 Vietnam Internet network information center (VNNIC) VN
AS152944 TIEN TRUNG SOFTWARE COMPANY LIMITED VN

Upstreams

AS Number Description Country
AS12552 GlobalConnect AB SE
AS5511 Orange S.A. FR
AS39249 Netassist International EOOD BG
AS9505 Chunghwa Telecom Co., Ltd. TW
AS31133 PJSC MegaFon RU
AS4230 CLARO S.A. BR
AS56655 Gigahost AS NO
AS37468 Angola Cables AO
AS3303 Swisscom Schweiz AG CH
AS50673 Serverius Holding B.V. NL

Downstreams

AS Number Description Country
AS149099 HUNG THINH GROUP CORPORATION VN
AS56159 Sai Gon Join stock commercial Bank VN
AS38733 CMC Telecom Infrastructure Company VN
AS131128 Onepay Online Service and Commercial Joint Stock Company VN
AS63749 Luxoft VietNam Company LTD VN
AS64528 IANA - Autonomous System Number ZZ
AS4229 Zenlayer Inc US
AS56146 Global informatics solution corporation VN
AS149100 SMARTMIND SECURITIES JOINT STOCK COMPANY VN
AS131410 Vietnam Cable Television Corporation Joint Stock Company VN

Contacts

Legacy Routes

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Frequently Asked Questions

ASN AS45903 is an Autonomous System Number used to identify a network for BGP internet routing.
AS45903 is listed under CMC Telecom Infrastructure Company.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.