asn.dev

Autonomous system

AS38732 CMCTELECOM-VN CMC Telecom Infrastructure Company

Unclassified APNIC

IPv4 addresses 9.22K 13 prefixes
IPv6 prefixes 10 counted as prefixes, not addresses
Countries 1 mostly VN
Exchanges 0 recorded by PCH
Upstreams 1 15 downstream
Flagged prefixes 0 none

Summary

CMC Telecom

Viet Nam · AI-generated

telecom infrastructure vietnam

The AS handle CMCTELECOM-VN is held by CMC Telecom Infrastructure Company.

What it's used for

  • The address space carries static infrastructure traffic, evidenced by reverse DNS entries pointing to static.cmcti.vn and netnames such as CMCTELECOM-VN, CMCMIENBAC-VN, and CMCHAIPHONG-VN.
  • The AS announces 9,216 IPv4 addresses across 13 prefixes and 10 IPv6 prefixes, while maintaining 17 observed neighbours, indicating a role focused on regional connectivity and infrastructure rather than mass consumer access.
  • As a member of CMC Technology Group, the network supports data center operations and enterprise infrastructure services within Vietnam.

Notable

  • Registrants for the majority of prefixes are listed as IRT-VNNIC-AP, with netnames consistently referencing CMC Telecom or its regional subsidiaries.
  • The address inventory is finely subdivided into multiple /23 and /24 blocks, reflecting a segmented corporate estate structure.
  • The AS was first seen in routing tables in 2008, aligning with the company's establishment date.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 15 downstream and 26 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS45903CMC Telecom Infrastructure Company2,605

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-17, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 13 prefixes · 9.22K addresses IPv6 10 prefixes

CountryNamePrefixes
VNViet Nam23

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS38732
Registry name
CMCTELECOM-VN
Abuse contact
hm-changed@vnnic.vn
Registered
2008-09-04
Last changed
2025-05-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
98% valid · 47 valid, 1 with no ROA
ROAs
30 authorising AS38732
ASPA
no ASPA record
IRR
98% registered · 47 of 48 announcements
Route objects
5,800 naming AS38732

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-17. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check