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Autonomous System

AS204203

Atrin Information & Communications Technology Company PJS

Announced IPs
5,376
CIDR prefixes
20
ASN
AS204203

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.

58/100
Caution
How this score is built

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 AS204203 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.

PrefixOrigin ASNsLast detected (UTC)
94.184.34.0/24 AS204203, AS216169 2026-09-10 13:40:45

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
94.184.34.0/23 512
0.0%
Atrin Information & Communications Technology Company PJS IR
45.89.223.0/24 256
0.0%
Amir Mohammad Masoudi IR
85.8.231.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
91.108.145.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
91.108.146.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
91.108.151.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
91.108.152.0/24 256
0.4%
Atrin Information & Communications Technology Company PJS IR
94.139.179.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
94.183.239.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS AE
95.38.38.0/24 256
0.4%
Atrin Information & Communications Technology Company PJS IR
95.38.195.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
95.38.197.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
109.162.249.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
178.239.148.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
185.42.212.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
185.161.36.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
185.217.6.0/24 256
1.2%
Atrin Information & Communications Technology Company PJS IR
185.229.133.0/24 256
0.4%
Atrin Information & Communications Technology Company PJS IR
193.177.245.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS IR
217.60.255.0/24 256
0.0%
Atrin Information & Communications Technology Company PJS AE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS204203 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
217.60.255.0/24 658,389 2026-09-11 14:12:47
178.239.148.0/24 252,673 2026-09-11 13:24:53
91.108.145.0/24 238,410 2026-09-11 14:12:17
185.229.133.0/24 234,479 2026-09-11 13:24:53
94.139.179.0/24 223,832 2026-09-11 13:38:15
109.162.249.0/24 220,918 2026-09-11 13:38:49
45.89.223.0/24 218,113 2026-09-11 13:24:42
95.38.197.0/24 217,716 2026-09-11 14:12:17
91.108.151.0/24 217,627 2026-09-11 14:12:17
95.38.195.0/24 201,943 2026-09-11 14:12:17
91.108.146.0/24 201,176 2026-09-11 14:12:17
95.38.38.0/24 184,745 2026-09-11 14:12:17
91.108.152.0/24 179,152 2026-09-11 14:12:17
185.42.212.0/24 146,046 2026-09-11 14:12:17
94.184.35.0/24 121,020 2026-09-11 14:12:17
185.217.6.0/24 116,830 2026-09-11 13:46:53
185.161.36.0/24 96,123 2026-09-11 12:26:00
94.184.34.0/24 81,355 2026-09-09 13:54:22
193.177.245.0/24 21,127 2026-09-11 12:24:32
85.8.231.0/24 20,571 2026-09-11 12:24:32

Frequently Asked Questions

What is AS204203?

AS204203 is an Autonomous System Number assigned to Atrin Information & Communications Technology Company PJS. 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 AS204203 announce?

AS204203 announces 5.4K IPv4 addresses distributed across 20 routed CIDR prefixes. The network is registered in Iran.

Who operates AS204203?

AS204203 is operated by Atrin Information & Communications Technology Company PJS. The organization is based in Iran. You can view all IP ranges and related ASNs on the organization page.

What country is AS204203 registered in?

AS204203 is registered in Iran. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-11 14:41:07 UTC
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