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Autonomous System

AS133119

China Unicom IP network

Announced IPs
216,064
CIDR prefixes
23
ASN
AS133119

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 v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 51 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS133119 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)
120.92.112.0/21 AS59019, AS133119 2026-11-13 09:24:08
120.92.12.0/23 AS59019, AS133119 2026-11-13 09:24:08
122.14.192.0/18 AS23724, AS133119 2026-11-13 09:24:08
120.92.192.0/19 AS23724, AS133119 2026-11-13 09:24:08
120.131.10.0/23 AS59019, AS133119 2026-11-13 09:24:08
120.92.48.0/21 AS59019, AS133119 2026-11-13 09:24:08
120.92.8.0/23 AS23724, AS133119 2026-11-13 09:24:08
120.92.96.0/21 AS59019, AS133119 2026-11-13 09:24:08
120.92.192.0/23 AS23724, AS133119 2026-11-13 09:24:08
120.131.8.0/23 AS59019, AS133119 2026-11-13 09:24:08
123.58.0.0/20 AS23724, AS133119 2026-11-13 09:24:08
120.131.14.0/23 AS59019, AS133119 2026-11-13 09:24:08
110.43.192.0/19 AS23724, AS133119 2026-11-13 09:24:08
120.92.120.0/21 AS59019, AS133119 2026-11-13 09:24:08
120.92.80.0/21 AS59019, AS133119 2026-11-13 09:24:08

Showing the 15 most recently detected of 51 MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS133119 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
123.58.240.0/20 22,400 2026-11-13 09:19:32
120.52.95.0/24 22,053 2026-11-13 09:19:32
120.52.44.0/22 21,997 2026-11-13 09:19:32
120.52.0.0/17 21,984 2026-11-13 09:19:32
120.133.16.0/21 21,971 2026-11-13 09:19:32
120.52.18.0/23 21,921 2026-11-13 09:19:32
120.52.128.0/17 21,864 2026-11-13 09:19:32
120.133.28.0/23 21,845 2026-11-13 09:19:32
116.181.0.0/16 21,782 2026-11-13 09:19:32
123.58.96.0/19 21,657 2026-11-13 09:19:32
123.58.0.0/20 21,628 2026-11-13 09:19:32
220.192.77.0/24 21,622 2026-11-13 09:19:32
220.192.79.0/24 21,597 2026-11-13 09:19:32
220.192.72.0/24 21,577 2026-11-13 09:19:32
220.192.75.0/24 21,575 2026-11-13 09:19:32
220.192.76.0/24 21,563 2026-11-13 09:19:32
220.192.78.0/24 21,554 2026-11-13 09:19:32
220.192.74.0/24 21,553 2026-11-13 09:19:32
220.192.73.0/24 21,552 2026-11-13 09:19:32
120.133.80.0/20 5,505 2026-11-13 09:19:32
101.36.128.0/17 5,498 2026-11-13 09:19:32
122.14.192.0/18 5,479 2026-11-13 09:19:32
120.133.64.0/20 5,429 2026-11-13 09:19:32
120.133.30.0/24 5,331 2026-11-13 09:19:32
120.133.24.0/22 5,328 2026-11-13 09:19:32
110.43.176.0/21 3,185 2026-11-13 09:19:32
110.43.168.0/21 3,163 2026-11-13 09:19:32
110.43.160.0/21 2,999 2026-11-13 09:07:27
110.43.112.0/21 2,307 2026-11-13 09:19:28
120.92.40.0/21 140 2026-11-13 09:07:27
120.92.12.0/23 140 2026-11-13 09:07:27
120.92.24.0/21 140 2026-11-13 09:07:27
120.131.14.0/23 140 2026-11-13 09:07:27
120.131.6.0/23 140 2026-11-13 09:07:27
120.92.112.0/21 140 2026-11-13 09:07:27
120.92.208.0/20 140 2026-11-13 09:07:27
110.43.64.0/20 140 2026-11-13 09:07:27
120.92.2.0/23 140 2026-11-13 09:07:27
120.131.0.0/23 140 2026-11-13 09:07:27
120.92.14.0/23 140 2026-11-13 09:07:27
120.92.6.0/23 140 2026-11-13 09:07:27
120.92.64.0/21 140 2026-11-13 09:07:27
120.131.2.0/23 140 2026-11-13 09:07:27
120.92.120.0/21 140 2026-11-13 09:07:27
120.92.0.0/23 140 2026-11-13 09:07:27
120.92.96.0/21 140 2026-11-13 09:07:27
120.92.104.0/21 140 2026-11-13 09:07:27
120.131.8.0/23 140 2026-11-13 09:07:27
120.92.192.0/23 140 2026-11-13 09:07:27
110.43.192.0/19 140 2026-11-13 09:07:27

Showing top 50 of 67 announced prefixes by sample volume.

Frequently Asked Questions

What is AS133119?

AS133119 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 AS133119 announce?

AS133119 announces 216.1K IPv4 addresses distributed across 23 routed CIDR prefixes. The network is registered in China.

Who operates AS133119?

AS133119 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 AS133119 registered in?

AS133119 is registered in China. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-13 09:24:05 UTC
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