Skip to main content
Autonomous System

AS133119

China Unicom IP network

Announced IPs
216,064
CIDR prefixes
24
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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 36 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)
120.133.16.0/21 AS9308, AS56048, AS133119 2026-09-10 22:40:48
120.133.28.0/23 AS9308, AS56048, AS133119 2026-09-10 22:40:48
120.92.40.0/21 AS59019, AS133119 2026-09-10 22:40:48
120.131.6.0/23 AS59019, AS133119 2026-09-10 22:40:48
120.92.48.0/21 AS59019, AS133119 2026-09-10 22:40:48
120.92.96.0/21 AS59019, AS133119 2026-09-10 22:40:48
110.43.64.0/20 AS23724, AS133119 2026-09-10 22:40:48
123.58.0.0/20 AS23724, AS133119 2026-09-10 22:40:48
120.92.80.0/21 AS59019, AS133119 2026-09-10 22:40:48
122.14.192.0/18 AS23724, AS133119 2026-09-10 22:40:48
120.131.10.0/23 AS59019, AS133119 2026-09-10 22:40:48
120.92.88.0/21 AS59019, AS133119 2026-09-10 22:40:48
110.43.168.0/21 AS23724, AS133119 2026-09-10 22:40:48
120.131.12.0/23 AS59019, AS133119 2026-09-10 22:40:48
120.92.10.0/23 AS59019, AS133119 2026-09-10 22:40:48

Showing the 15 most recently detected of 36 MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
116.181.0.0/16 65.5K
0.0%
China Unicom IP network CN
101.36.128.0/17 32.8K
0.7%
China Unicom IP network CN
120.52.128.0/17 32.8K
0.0%
China Unicom IP network CN
120.52.64.0/18 16.4K
0.0%
China Unicom IP network CN
122.14.192.0/18 16.4K
5.8%
China Unicom IP network CN
120.52.32.0/19 8.2K
0.0%
China Unicom IP network CN
120.133.64.0/19 8.2K
0.2%
China Unicom IP network CN
123.58.96.0/19 8.2K
0.0%
China Unicom IP network CN
110.43.160.0/20 4.1K
0.0%
China Unicom IP network CN
120.52.0.0/20 4.1K
0.0%
China Unicom IP network CN
123.58.0.0/20 4.1K
0.0%
China Unicom IP network CN
123.58.240.0/20 4.1K
0.1%
China Unicom IP network CN
110.43.112.0/21 2.0K
0.0%
China Unicom IP network CN
110.43.176.0/21 2.0K
0.0%
China Unicom IP network CN
120.52.16.0/21 2.0K
0.0%
China Unicom IP network CN
220.192.72.0/21 2.0K
0.0%
China Unicom IP network CN
120.52.24.0/22 1.0K
0.0%
China Unicom IP network CN
120.133.16.0/22 1.0K
0.5%
China Unicom IP network CN
120.133.24.0/22 1.0K
0.2%
China Unicom IP network CN
120.52.28.0/23 512
0.0%
China Unicom IP network CN
120.133.22.0/23 512
0.0%
China Unicom IP network CN
120.133.28.0/23 512
0.0%
China Unicom IP network CN
120.52.30.0/24 256
0.0%
China Unicom IP network CN
120.133.29.0/24 256
0.0%
China Unicom IP network CN
120.133.30.0/24 256
0.0%
China Unicom IP network CN

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
120.133.16.0/21 14,964 2026-09-10 22:33:52
123.58.240.0/20 14,880 2026-09-10 22:34:42
120.133.28.0/23 14,844 2026-09-10 22:11:35
123.58.0.0/20 14,474 2026-09-10 22:34:42
120.52.95.0/24 14,403 2026-09-10 22:34:42
120.52.44.0/22 14,354 2026-09-10 22:34:42
120.52.0.0/17 14,323 2026-09-10 22:34:42
120.52.18.0/23 14,273 2026-09-10 22:34:42
120.52.128.0/17 14,192 2026-09-10 22:33:52
116.181.0.0/16 14,152 2026-09-10 22:34:42
220.192.79.0/24 14,103 2026-09-10 22:29:37
220.192.72.0/24 14,090 2026-09-10 22:34:42
220.192.75.0/24 14,090 2026-09-10 22:29:37
220.192.77.0/24 14,082 2026-09-10 22:34:42
123.58.96.0/19 14,076 2026-09-10 22:34:42
220.192.76.0/24 14,075 2026-09-10 22:34:42
220.192.74.0/24 14,064 2026-09-10 22:35:44
220.192.78.0/24 14,062 2026-09-10 22:34:42
220.192.73.0/24 14,060 2026-09-10 22:29:37
101.36.128.0/17 3,011 2026-09-10 22:33:48
122.14.192.0/18 2,991 2026-09-10 22:33:52
120.133.80.0/20 2,952 2026-09-10 22:33:52
120.133.64.0/20 2,898 2026-09-10 22:33:52
120.133.30.0/24 2,806 2026-09-10 20:12:42
120.133.24.0/22 2,800 2026-09-10 22:33:52
110.43.176.0/21 2,077 2026-09-10 22:33:52
110.43.160.0/21 2,057 2026-09-10 22:33:52
110.43.168.0/21 2,054 2026-09-10 22:33:52
110.43.112.0/21 1,000 2026-09-10 21:48:56
120.92.40.0/21 71 2026-09-06 22:33:02
120.92.12.0/23 71 2026-09-06 22:33:02
120.92.24.0/21 71 2026-09-06 22:33:02
120.131.14.0/23 71 2026-09-06 22:33:02
120.131.6.0/23 71 2026-09-06 22:33:02
120.92.112.0/21 71 2026-09-06 22:33:02
120.92.208.0/20 71 2026-09-06 22:33:02
110.43.64.0/20 71 2026-09-06 22:33:02
120.92.2.0/23 71 2026-09-06 22:33:02
120.131.0.0/23 71 2026-09-06 22:33:02
120.92.14.0/23 71 2026-09-06 22:33:02
120.92.6.0/23 71 2026-09-06 22:33:02
120.92.64.0/21 71 2026-09-06 22:33:02
120.131.2.0/23 71 2026-09-06 22:33:02
120.92.120.0/21 71 2026-09-06 22:33:02
120.92.0.0/23 71 2026-09-06 22:33:02
120.92.96.0/21 71 2026-09-06 22:33:02
120.92.104.0/21 71 2026-09-06 22:33:02
120.131.8.0/23 71 2026-09-06 22:33:02
120.92.192.0/23 71 2026-09-06 22:33:02
110.43.192.0/19 71 2026-09-06 22:33:02

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 24 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: 2026-09-10 22:39:05 UTC
Share