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Autonomous System

AS134542

China Unicom IP network

Announced IPs
86,528
CIDR prefixes
12
ASN
AS134542

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 →

⚠ 6 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS134542 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)
139.9.248.0/22 AS58519, AS134542 2026-07-23 22:53:42
140.210.224.0/20 AS58519, AS134542 2026-07-23 22:53:42
140.210.192.0/19 AS58519, AS134542 2026-07-23 22:53:42
139.9.144.0/20 AS58519, AS134542 2026-07-23 22:53:42
139.9.224.0/20 AS58519, AS134542 2026-07-23 09:53:28
122.9.128.0/19 AS58519, AS134542 2026-07-22 23:23:24

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS134542 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
43.254.102.0/24 10,469 2026-07-23 22:35:12
59.80.0.0/19 10,463 2026-07-23 22:35:12
43.254.100.0/24 10,454 2026-07-23 22:35:12
43.254.101.0/24 10,434 2026-07-23 22:35:12
59.80.64.0/19 10,417 2026-07-23 22:35:12
43.254.103.0/24 10,149 2026-07-23 22:35:12
59.80.32.0/19 10,116 2026-07-23 22:35:12
59.80.96.0/19 10,068 2026-07-23 22:35:12
59.80.0.0/17 9,608 2026-07-23 22:35:12
139.9.144.0/20 1,571 2026-07-23 22:39:43
139.9.224.0/20 1,480 2026-07-23 22:39:43
139.9.248.0/22 1,463 2026-07-23 22:39:43
139.9.240.0/21 1,447 2026-07-23 22:39:43
103.161.220.0/23 1,400 2026-07-23 20:43:26
116.63.128.0/18 1,394 2026-07-23 20:43:26
140.210.192.0/19 1,325 2026-07-23 20:43:26
122.9.160.0/20 1,292 2026-07-23 20:43:26
122.9.128.0/19 1,292 2026-07-23 20:43:26
140.210.224.0/20 1,263 2026-07-23 20:43:26

Frequently Asked Questions

What is AS134542?

AS134542 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 AS134542 announce?

AS134542 announces 86.5K IPv4 addresses distributed across 12 routed CIDR prefixes. The network is registered in China.

Who operates AS134542?

AS134542 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 AS134542 registered in?

AS134542 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 22:40:31 UTC
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