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Autonomous System

AS133118

China Unicom IP network

Announced IPs
68,608
CIDR prefixes
15
ASN
AS133118

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 →

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS133118 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)
103.212.4.0/22 AS58519, AS133118 2026-07-22 23:23:24
146.196.116.0/22 AS58519, AS133118 2026-07-22 23:23:24

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS133118 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
106.74.128.0/17 9,476 2026-07-23 20:06:45
106.74.25.0/24 9,475 2026-07-23 20:06:45
106.74.0.0/17 9,473 2026-07-23 20:06:45
106.74.26.0/24 9,424 2026-07-23 20:06:45
106.74.27.0/24 9,410 2026-07-23 20:06:45
106.74.24.0/24 9,394 2026-07-23 20:06:45
103.224.232.0/24 9,380 2026-07-23 20:06:45
103.224.233.0/24 9,376 2026-07-23 20:06:45
103.243.139.0/24 9,359 2026-07-23 20:06:45
103.243.136.0/24 9,357 2026-07-23 20:06:45
103.243.138.0/24 9,355 2026-07-23 20:06:45
103.224.235.0/24 9,352 2026-07-23 20:06:45
106.74.32.0/24 9,346 2026-07-23 20:06:45
103.224.234.0/24 9,342 2026-07-23 20:06:45
103.243.137.0/24 9,334 2026-07-23 20:06:45
103.241.95.0/24 6,070 2026-07-23 17:20:08
103.212.4.0/22 3,416 2026-07-23 20:00:23
146.196.116.0/22 1,060 2026-07-23 19:56:24

Frequently Asked Questions

What is AS133118?

AS133118 is an Autonomous System Number assigned to China Unicom IP network. 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 AS133118 announce?

AS133118 announces 68.6K IPv4 addresses distributed across 15 routed CIDR prefixes. The network is registered in China.

Who operates AS133118?

AS133118 is operated by China Unicom IP network. The organization is based in China. You can view all IP ranges and related ASNs on the organization page.

What country is AS133118 registered in?

AS133118 is registered in China. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 20:10:36 UTC
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