AS45903 — CMCTELECOM-VN - CMC Telecom Infrastructure Company

Network type: residential

AS45903 announces 62 IPv4 prefixes covering 82,172 addresses and 28 IPv6 prefixes.

About this network

CMCTELECOM-VN is operated by CMC Telecom Infrastructure Company.

What it's used for

• The address space carries static residential and enterprise connectivity, evidenced by reverse DNS entries pointing to static.cmcti.vn across multiple /19 and /20 blocks.
• The AS announces 81,660 IPv4 addresses and 143 IPv6 prefixes, with 282 observed routing neighbours, indicating a large-scale access network providing broadband services to end-users and businesses in Vietnam.
• Traffic consists of subscriber internet access, including FTTH and leased lines, as well as data center and cloud services hosted within the operator's infrastructure.

Notable

• Registrants for the majority of prefixes are IRT-VNNIC-AP with netname CMCTELECOM-VN, aligning with the AS holder; some prefixes show APNIC or IANA netnames, reflecting historical allocation or specific block management.
• CMC Telecom was established in 2008 as a member of CMC Technology Group and operates the first Uptime Tier III certified data center in Vietnam.
• The inventory includes a mix of /19, /20, and /21 IPv4 prefixes, with a significant portion of the address space allocated for static customer assignments.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 42.96.38.0/23
• 42.96.40.0/21
• 42.96.48.0/21
• 42.96.56.0/22
• 42.96.60.0/23
• 42.96.62.0/24
• 45.122.232.0/21
• 45.122.240.0/22
• 45.122.245.0/24
• 45.122.246.0/23
• 45.122.248.0/22
• 45.122.252.0/24
• 45.122.254.0/23
• 101.99.0.0/23
• 101.99.2.0/24
• 101.99.4.0/22
• 101.99.8.0/21
• 101.99.16.0/20
• 101.99.32.0/19
• 103.9.196.0/22
• 103.63.104.0/22
• 103.63.110.0/23
• 103.63.112.0/21
• 103.63.120.0/22
• 103.108.132.0/22
• 103.224.168.0/22
• 103.229.40.0/22
• 103.246.220.0/22
• 113.20.96.0/19
• 115.165.160.0/24
• 115.165.166.0/24
• 119.82.129.0/24
• 119.82.130.0/23
• 119.82.132.0/24
• 119.82.134.0/23
• 119.82.136.0/23
• 119.82.138.0/24
• 119.82.139.0/25
• 119.82.139.128/26
• 119.82.139.192/29
• 119.82.139.204/30
• 119.82.139.208/28
• 119.82.139.224/27
• 119.82.140.0/22
• 124.158.14.0/24
• 144.48.24.0/22
• 162.4.8.0/23
• 163.52.14.0/23
• 183.91.0.0/21
• 183.91.8.0/22
• 183.91.12.0/23
• 183.91.15.0/24
• 183.91.16.0/20
• 202.134.16.0/21
• 203.171.16.0/20
• 203.205.0.0/22
• 203.205.5.0/24
• 203.205.6.0/23
• 203.205.8.0/22
• 203.205.12.0/23
• 203.205.16.0/20
• 203.205.32.0/19
• 2001:df7:6640::/48
• 2402:5300::/37
• 2402:5300:408::/45
• 2402:5300:410::/44
• 2402:5300:420::/43
• 2402:5300:440::/42
• 2402:5300:480::/41
• 2402:5300:500::/40
• 2402:5300:600::/39
• 2402:5300:800::/37
• 2402:5300:1000::/36
• 2402:5300:2000::/35
• 2402:5300:4000::/44
• 2402:5300:400a::/47
• 2402:5300:400c::/46
• 2402:5300:4010::/44
• 2402:5300:4022::/47
• 2402:5300:4024::/46
• 2402:5300:4028::/45
• 2402:5300:4030::/44
• 2402:5300:4040::/42
• 2402:5300:4080::/41
• 2402:5300:4100::/40
• 2402:5300:4200::/39
• 2402:5300:4400::/38
• 2402:5300:4800::/37
• 2402:5300:4f00::/40
• 2402:5300:5000::/36

Upstream networks

• AS9304 HGC Global Communications Limited
• AS3491 PCCW Global (HK) Ltd.
• AS15412 Flag Telecom UK Limited
• AS2914 NTT America, Inc.
• AS21859 Zenlayer Inc
• AS34549 meerfarbig GmbH & Co. KG
• AS7473 Singapore Telecommunications Ltd
• AS6939 Hurricane Electric LLC
• AS4766 Korea Telecom
• AS24482 SG.GS
• AS3356 Level 3 Parent, LLC
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS703 Verizon Business
• AS34019 Hivane Association
• AS212024 Marc Schmitt
• AS37721 Virtual Technologies & Solutions
• AS37100 SEACOM Limited
• AS20485 Joint Stock Company TransTeleCom
• AS48362 Stadtwerke Feldkirch
• AS8551 Bezeq International Ltd.
• AS3303 Swisscom (Schweiz) AG
• AS12779 IT.Gate S.p.A.
• AS6797 GlobalConnect AB
• AS9002 RETN Limited
• AS5511 Orange S.A.

Downstream networks

• AS45538 ODS Joint Stock Company
• AS38732 CMC Telecom Infrastructure Company
• AS45544 SUPERDATA-VN
• AS38733 CMC Telecom Infrastructure Company
• AS38247 Vietnamobile Telecommunications Joint Stock Company
• AS55309 Minh Tu Telecom Limited Company
• AS138995 Antbox Networks Limited
• AS131410 Vietnam Cable Television Corporation Joint Stock Company
• AS135983 Tino Group Joint Stock Company
• AS154552 XYLENTIS COMPANY LIMITED
• AS45102 Alibaba (US) Technology Co., Ltd.
• AS24173 Netnam Company
• AS56150 Viet Solutions Services Trading Company Limited
• AS38726 VTC DIGICOM
• AS55318 Asia Commercial Bank
• AS150869 National Citizen Commercial Joint stock bank
• AS149128 Prosperity and Development Joint Stock Commercial Bank
• AS131421 Intercom Telecom., JSC
• AS135938 Home Credit Viet nam Finance Company Limited
• AS63755 VietNam - Russia joint venture bank
• AS152994 EB Services LLC
• AS150837 SAOVANG TELECOMMUNICATION INFRASTRUCTURE JOINT STOCK COMPANY
• AS131398 LOTTE INNOVATE VIETNAM COMPANY LIMITED
• AS63741 DCNET TELECOM
• AS56147 Creative Communication Vietnam Joint Stock Company

Adjacent networks

• AS9304 HGC Global Communications Limited
• AS3491 PCCW Global (HK) Ltd.
• AS15412 Flag Telecom UK Limited
• AS2914 NTT America, Inc.
• AS38733 CMC Telecom Infrastructure Company
• AS38732 CMC Telecom Infrastructure Company
• AS45538 ODS Joint Stock Company
• AS21859 Zenlayer Inc
• AS135983 Tino Group Joint Stock Company
• AS45544 SUPERDATA-VN
• AS55309 Minh Tu Telecom Limited Company
• AS38247 Vietnamobile Telecommunications Joint Stock Company
• AS34549 meerfarbig GmbH & Co. KG
• AS24482 SG.GS
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS138995 Antbox Networks Limited
• AS7473 Singapore Telecommunications Ltd
• AS135947 Shopee Company Limited
• AS5511 Orange S.A.
• AS131410 Vietnam Cable Television Corporation Joint Stock Company
• AS135943 TRUONG MINH THINH TECHNOLOGY JOINT STOCK COMPANY
• AS24173 Netnam Company
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS4766 Korea Telecom

Routing security

• RPKI: 495 valid, 0 invalid and 0 not-found announcements; 114 ROAs.
• ASPA: none published.
• IRR: 97% of announcements registered; 9,365 route objects.
• Listed in as-sets: AS-10099, AS-24086, AS-24088, AS-45899, AS-45899CUST, AS-45903, AS-45903, AS-59318-AS-KH, AS-7552, AS-7552, AS-CTBC-CUSTOMERS245, AS-CTBC-TOOLS-7, AS-CWCUSTASIA, AS-FLAGP, AS-FLAGT, AS-FPT, AS-FPT_COMMUNICATIONS, AS-HANOITELECOM, AS-HGC-INTL, AS-HKIX, AS-HURRICANE, AS-HURRICANEV6, AS-HUTCHCITY, AS-KORNETBGP, AS-NEXUSGUARD-CLIENTS.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Equinix Internet Exchange Singapore — Singapore, Singapore
• Hong Kong Internet Exchange — Hong Kong, China
• NetIX — Sofia, Bulgaria
• Equinix Internet Exchange Hong Kong — Hong Kong, China
• BroadBand Internet eXchange Singapore — Singapore, Singapore
• AMS-IX Hong Kong — Hong Kong, China