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Autonomous System

AS10204

Arcnet NTT MSC ISP

Announced IPs
23,552
CIDR prefixes
13
ASN
AS10204

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.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type NSP
Traffic level 1-5Gbps
Geographic scope Regional
Traffic ratio Balanced
Peering policy Open
IRR record AS10204:AS-GLOBAL

Present at 3 internet exchanges: MyIX, DE-CIX ASEAN, DE-CIX Kuala Lumpur

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS10204 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
203.115.208.0/24 74,300 2026-07-16 16:50:09
203.115.200.0/24 29,001 2026-07-24 16:14:34
103.51.50.0/24 22,795 2026-07-24 16:19:16
103.51.51.0/24 22,405 2026-07-24 16:19:16
203.115.211.0/24 20,971 2026-07-24 16:19:17
203.115.224.0/19 8,869 2026-07-24 15:51:18
202.6.248.0/22 8,568 2026-07-24 15:51:18
146.88.196.0/22 8,446 2026-07-24 15:51:18
203.115.192.0/20 8,375 2026-07-24 15:51:18
203.115.208.0/20 8,369 2026-07-24 15:51:18
103.51.48.0/23 7,955 2026-07-24 15:51:18
43.231.224.0/22 7,858 2026-07-24 15:51:18
45.115.220.0/22 7,750 2026-07-24 15:51:18
103.229.32.0/22 7,679 2026-07-24 15:51:18
103.229.33.0/24 5,205 2026-07-24 15:46:57
103.229.32.0/24 5,153 2026-07-24 15:46:57
202.6.248.0/24 5,143 2026-07-24 15:46:57
203.115.192.0/18 5,136 2026-07-24 15:46:57
103.229.34.0/24 5,134 2026-07-24 15:46:57
203.115.238.0/24 4,865 2026-07-24 15:46:57
203.115.208.0/21 4,792 2026-07-24 15:46:57
103.51.50.0/23 4,760 2026-07-24 15:46:57
203.115.192.0/19 4,715 2026-07-24 15:46:57
203.115.226.0/24 4,692 2026-07-24 15:46:57
203.115.199.0/24 4,531 2026-07-24 15:46:57
203.115.236.0/24 3,990 2026-07-24 15:46:47
103.229.32.0/23 3,920 2026-07-24 15:46:47
203.115.201.0/24 3,911 2026-07-24 15:46:47
203.78.200.0/22 3,885 2026-07-24 15:46:47
203.115.225.0/24 3,875 2026-07-24 15:46:47

Frequently Asked Questions

What is AS10204?

AS10204 is an Autonomous System Number assigned to Arcnet NTT MSC ISP. 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 AS10204 announce?

AS10204 announces 23.6K IPv4 addresses distributed across 13 routed CIDR prefixes. The network is registered in Malaysia.

Who operates AS10204?

AS10204 is operated by Arcnet NTT MSC ISP. The organization is based in Malaysia. You can view all IP ranges and related ASNs on the organization page.

What country is AS10204 registered in?

AS10204 is registered in Malaysia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 16:25:32 UTC
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