AS151630
Yun Zhong Technology Limited
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.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 4 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS151630 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.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 137.175.46.0/24 | AS54600, AS151630 | 2026-11-09 22:38:37 |
| 137.175.17.0/24 | AS54600, AS151630 | 2026-11-09 22:38:37 |
| 137.175.72.0/24 | AS54600, AS151630 | 2026-11-09 22:38:37 |
| 137.175.59.0/24 | AS54600, AS151630 | 2026-11-09 22:38:37 |
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 38.12.248.0/21 | 2.0K |
0.0%
|
Yun Zhong Technology Limited | US | California | San Jose |
| 45.149.16.0/22 | 1.0K |
0.0%
|
Yun Zhong Technology Limited | CN | — | — |
| 103.141.220.0/23 | 512 |
0.0%
|
Yun Zhong Technology Limited | HK | — | — |
| 103.142.84.0/23 | 512 |
0.0%
|
Yun Zhong Technology Limited | HK | — | — |
| 103.142.246.0/23 | 512 |
0.0%
|
Yun Zhong Technology Limited | HK | — | — |
| 103.143.26.0/23 | 512 |
0.0%
|
Yun Zhong Technology Limited | HK | — | — |
| 103.145.104.0/23 | 512 |
0.0%
|
Yun Zhong Technology Limited | HK | — | — |
| 103.149.152.0/23 | 512 |
0.0%
|
Yun Zhong Technology Limited | HK | — | — |
| 103.149.182.0/23 | 512 |
0.0%
|
Yun Zhong Technology Limited | HK | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS151630 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 38.12.251.0/24 | 135,447 | 2026-11-09 21:21:17 |
| 38.12.248.0/24 | 135,348 | 2026-11-09 21:21:17 |
| 38.12.250.0/24 | 85,450 | 2026-11-09 21:21:17 |
| 38.12.254.0/24 | 74,747 | 2026-11-09 21:21:17 |
| 38.12.253.0/24 | 73,988 | 2026-11-09 21:21:17 |
| 38.12.252.0/24 | 73,840 | 2026-11-09 21:21:17 |
| 38.12.249.0/24 | 56,991 | 2026-11-09 21:21:17 |
| 38.12.255.0/24 | 55,935 | 2026-11-09 21:21:17 |
| 103.142.84.0/24 | 27,141 | 2026-11-09 21:21:17 |
| 103.142.84.0/23 | 21,376 | 2026-07-22 19:52:26 |
| 103.149.183.0/24 | 19,701 | 2026-11-09 22:09:10 |
| 103.145.104.0/24 | 19,100 | 2026-11-09 21:21:17 |
| 45.149.16.0/24 | 18,315 | 2026-11-09 22:09:08 |
| 45.149.19.0/24 | 18,291 | 2026-11-09 22:09:08 |
| 45.149.18.0/24 | 18,257 | 2026-11-09 22:09:08 |
| 45.149.17.0/24 | 18,197 | 2026-11-09 22:09:08 |
| 103.141.220.0/24 | 17,750 | 2026-11-09 22:09:10 |
| 103.143.26.0/24 | 17,599 | 2026-11-09 22:09:10 |
| 103.149.182.0/24 | 17,576 | 2026-11-09 22:09:10 |
| 103.142.247.0/24 | 17,575 | 2026-11-09 22:09:10 |
| 103.143.27.0/24 | 17,565 | 2026-11-09 22:09:10 |
| 103.142.246.0/24 | 17,551 | 2026-11-09 22:09:10 |
| 103.141.221.0/24 | 17,475 | 2026-11-09 22:09:10 |
| 103.149.153.0/24 | 15,984 | 2026-11-09 22:09:10 |
| 103.149.152.0/24 | 15,973 | 2026-11-09 22:09:10 |
| 103.142.85.0/24 | 15,282 | 2026-11-09 21:21:17 |
| 103.145.105.0/24 | 14,801 | 2026-11-09 21:21:17 |
| 198.2.247.0/24 | 985 | 2026-11-09 21:58:25 |
| 198.2.252.0/24 | 983 | 2026-11-09 21:58:25 |
| 137.175.59.0/24 | 926 | 2026-11-09 21:26:23 |
| 137.175.17.0/24 | 925 | 2026-11-09 21:26:23 |
| 137.175.72.0/24 | 864 | 2026-11-09 21:56:00 |
| 107.149.211.0/24 | 604 | 2026-11-09 21:39:38 |
| 107.149.210.0/24 | 600 | 2026-11-09 21:39:38 |
| 137.175.46.0/24 | 485 | 2026-11-09 21:26:23 |
Frequently Asked Questions
What is AS151630?
AS151630 is an Autonomous System Number assigned to Yun Zhong Technology Limited. 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 AS151630 announce?
AS151630 announces 6.7K IPv4 addresses distributed across 9 routed CIDR prefixes. The network is registered in Hong Kong.
Who operates AS151630?
AS151630 is operated by Yun Zhong Technology Limited. The organization is based in Hong Kong. You can view all IP ranges and related ASNs on the organization page.
What country is AS151630 registered in?
AS151630 is registered in Hong Kong. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
