AS38733
CMC Telecom Infrastructure Company
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS38733 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS38733 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 124.158.13.0/24 | 55,929 | 2026-09-11 22:09:49 |
| 115.165.164.0/24 | 53,715 | 2026-09-11 22:09:39 |
| 115.165.161.0/24 | 41,002 | 2026-09-11 22:09:39 |
| 115.165.167.0/24 | 31,854 | 2026-09-11 22:09:39 |
| 115.165.162.0/24 | 31,780 | 2026-09-11 22:09:39 |
| 124.158.12.0/24 | 31,736 | 2026-09-11 22:09:49 |
| 124.158.8.0/21 | 31,728 | 2026-09-11 22:09:49 |
| 115.165.165.0/24 | 31,613 | 2026-09-11 22:09:39 |
| 124.158.8.0/24 | 31,548 | 2026-09-11 22:09:49 |
| 115.165.163.0/24 | 31,280 | 2026-09-11 22:09:39 |
| 124.158.15.0/24 | 27,723 | 2026-09-11 22:09:49 |
| 119.82.133.0/24 | 23,617 | 2026-09-11 22:09:44 |
| 42.96.36.0/24 | 23,394 | 2026-09-11 22:09:09 |
| 124.158.9.0/24 | 20,328 | 2026-09-11 22:09:49 |
| 42.96.63.0/24 | 19,255 | 2026-09-04 11:35:09 |
| 42.96.62.0/24 | 18,898 | 2026-08-06 03:53:05 |
| 203.167.14.0/23 | 18,766 | 2026-09-11 22:11:42 |
| 203.167.12.0/22 | 18,668 | 2026-09-11 22:11:42 |
| 203.167.12.0/23 | 18,644 | 2026-09-11 22:11:42 |
| 103.82.34.0/24 | 18,616 | 2026-09-11 22:09:11 |
| 103.82.32.0/22 | 18,562 | 2026-09-11 22:09:11 |
| 103.82.32.0/23 | 18,535 | 2026-09-11 22:09:11 |
| 103.82.35.0/24 | 18,513 | 2026-09-11 22:09:11 |
| 103.236.251.0/24 | 18,506 | 2026-09-11 22:09:19 |
| 42.96.33.0/24 | 18,017 | 2026-09-11 22:09:09 |
| 42.96.37.0/24 | 16,732 | 2026-09-11 22:09:09 |
| 45.122.244.0/24 | 15,626 | 2026-09-11 22:07:55 |
| 124.158.10.0/24 | 14,866 | 2026-09-11 21:21:46 |
| 124.158.11.0/24 | 14,749 | 2026-09-11 22:12:41 |
| 203.205.15.0/24 | 11,924 | 2026-09-11 22:11:42 |
| 203.205.8.0/24 | 8,417 | 2026-07-21 20:07:57 |
| 203.205.8.0/21 | 445 | 2026-09-09 21:16:41 |
| 119.82.128.0/20 | 148 | 2026-09-09 21:16:11 |
| 115.165.161.0/32 | 25 | 2026-08-29 04:49:25 |
| 115.165.167.0/32 | 25 | 2026-08-29 04:49:25 |
| 115.165.163.0/32 | 25 | 2026-08-29 04:49:25 |
| 119.82.133.0/32 | 25 | 2026-08-29 04:49:26 |
| 115.165.165.0/32 | 25 | 2026-08-29 04:49:25 |
| 115.165.162.0/32 | 25 | 2026-08-29 04:49:25 |
| 115.165.164.0/32 | 25 | 2026-08-29 04:49:25 |
| 124.158.13.0/32 | 24 | 2026-08-29 04:49:27 |
| 42.96.37.0/32 | 24 | 2026-08-29 04:47:47 |
| 124.158.10.0/32 | 24 | 2026-08-29 04:49:27 |
| 124.158.15.0/32 | 24 | 2026-08-29 04:49:27 |
| 124.158.12.0/32 | 24 | 2026-08-29 04:49:27 |
| 42.96.36.0/32 | 24 | 2026-08-29 04:47:47 |
| 45.122.244.0/32 | 24 | 2026-08-29 04:47:51 |
| 124.158.8.0/32 | 24 | 2026-08-29 04:49:27 |
| 124.158.9.0/32 | 24 | 2026-08-29 04:49:27 |
| 42.96.62.0/32 | 24 | 2026-08-29 04:47:47 |
Frequently Asked Questions
What is AS38733?
AS38733 is an Autonomous System Number assigned to CMC Telecom Infrastructure Company. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS38733 announce?
AS38733 announces 7.9K IPv4 addresses distributed across 17 routed CIDR prefixes. The network is registered in Vietnam.
Who operates AS38733?
AS38733 is operated by CMC Telecom Infrastructure Company. The organization is based in Vietnam. You can view all IP ranges and related ASNs on the organization page.
What country is AS38733 registered in?
AS38733 is registered in Vietnam. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
