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Autonomous System

AS10204

Arcnet NTT MSC ISP

Announced IPs
23,552
CIDR prefixes
8
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 v1.3.0 — 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
103.51.50.0/24 102,035 2026-10-27 09:23:45
103.51.51.0/24 101,526 2026-10-27 09:23:45
203.115.208.0/24 85,360 2026-10-15 18:39:21
203.115.200.0/24 57,218 2026-10-27 09:24:16
203.115.211.0/24 46,049 2026-10-27 09:24:15
203.115.224.0/19 22,474 2026-10-27 09:24:15
202.6.248.0/22 22,329 2026-10-27 09:23:45
146.88.196.0/22 21,838 2026-10-27 09:23:45
203.115.208.0/20 21,455 2026-10-27 09:24:15
203.115.192.0/20 21,432 2026-10-27 09:24:15
43.231.224.0/22 21,394 2026-10-27 09:23:45
45.115.220.0/22 21,338 2026-10-27 09:23:45
103.229.32.0/22 19,842 2026-10-27 09:23:45
103.51.48.0/23 19,080 2026-10-27 09:16:51
103.51.50.0/23 18,341 2026-10-27 09:23:45
103.229.33.0/24 17,614 2026-10-27 09:18:23
103.229.32.0/24 17,583 2026-10-27 09:18:23
103.229.34.0/24 14,845 2026-10-27 09:18:23
202.6.248.0/24 14,319 2026-10-27 09:18:23
203.115.192.0/18 13,932 2026-10-27 09:18:23
203.115.238.0/24 13,621 2026-10-27 09:18:23
203.115.208.0/21 13,582 2026-10-27 09:18:23
203.115.199.0/24 13,472 2026-10-27 09:21:51
203.115.192.0/19 13,428 2026-10-27 09:18:23
203.115.226.0/24 13,377 2026-10-27 09:18:23
203.115.236.0/24 12,064 2026-10-27 09:21:51
103.229.32.0/23 11,543 2026-10-27 08:17:26
203.115.225.0/24 10,827 2026-10-27 08:17:26
203.115.201.0/24 9,521 2026-10-27 08:17:26
203.78.200.0/22 9,487 2026-10-27 08:17:26
203.115.237.0/24 7,196 2026-10-27 09:21:51
203.115.223.0/24 1,327 2026-10-27 09:24:15

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 8 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: 2026-10-27 09:54:05 UTC
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