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Autonomous System

AS133752

LEASEWEB HONG KONG LIMITED

Announced IPs
15,104
CIDR prefixes
29
ASN
AS133752

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.

53/100
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 AS133752 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)
23.19.53.0/24 AS133752, AS205544 2026-09-11 00:40:49
23.19.52.0/24 AS133752, AS205544 2026-09-09 03:40:29

Network profile

Source: PeeringDB →
Network type Content
Geographic scope Not Disclosed
Traffic ratio Heavy Outbound
Peering policy Selective
IRR record AS133752

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
64.120.112.0/21 2.0K
56.2%
LEASEWEB HONG KONG LIMITED HK
172.241.216.0/21 2.0K
2.3%
LEASEWEB HONG KONG LIMITED HK
209.58.184.0/21 2.0K
21.8%
LEASEWEB HONG KONG LIMITED HK
64.120.88.0/22 1.0K
57.4%
LEASEWEB HONG KONG LIMITED HK
23.19.52.0/23 512
0.4%
LEASEWEB HONG KONG LIMITED US
43.249.36.0/23 512
6.4%
LEASEWEB HONG KONG LIMITED HK
64.120.120.0/23 512
83.8%
LEASEWEB HONG KONG LIMITED HK
96.9.228.0/23 512
2.5%
LEASEWEB HONG KONG LIMITED US
103.161.224.0/23 512
3.1%
LEASEWEB HONG KONG LIMITED HK
204.217.154.0/23 512
0.0%
LEASEWEB HONG KONG LIMITED US
27.0.232.0/24 256
0.8%
LEASEWEB HONG KONG LIMITED US
45.39.117.0/24 256
0.0%
LEASEWEB HONG KONG LIMITED US
85.113.71.0/24 256
0.8%
LEASEWEB HONG KONG LIMITED US
85.155.97.0/24 256
0.0%
LEASEWEB HONG KONG LIMITED US
103.21.220.0/24 256
61.7%
LEASEWEB HONG KONG LIMITED CA
103.75.117.0/24 256
1.6%
LEASEWEB HONG KONG LIMITED CA
103.133.190.0/24 256
0.0%
LEASEWEB HONG KONG LIMITED HK
103.138.32.0/24 256
0.0%
LEASEWEB HONG KONG LIMITED HK
104.164.38.0/24 256
0.0%
LEASEWEB HONG KONG LIMITED US
172.96.185.0/24 256
85.5%
LEASEWEB HONG KONG LIMITED CA
178.16.235.0/24 256
0.0%
LEASEWEB HONG KONG LIMITED RO
180.210.220.0/24 256
0.0%
LEASEWEB HONG KONG LIMITED BD
192.131.142.0/24 256
3.5%
LEASEWEB HONG KONG LIMITED US
198.252.103.0/24 256
50.0%
LEASEWEB HONG KONG LIMITED CA
198.252.107.0/24 256
79.3%
LEASEWEB HONG KONG LIMITED CA
203.9.150.0/24 256
1.2%
LEASEWEB HONG KONG LIMITED US
203.20.113.0/24 256
0.8%
LEASEWEB HONG KONG LIMITED US
203.23.128.0/24 256
2.3%
LEASEWEB HONG KONG LIMITED CA
205.189.160.0/24 256
4.3%
LEASEWEB HONG KONG LIMITED US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS133752 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
203.9.150.0/24 20,502 2026-09-11 00:32:41
180.210.220.0/24 20,478 2026-09-11 00:32:41
209.58.184.0/21 20,335 2026-09-11 00:32:41
203.20.113.0/24 20,241 2026-09-11 00:32:41
205.189.160.0/24 20,185 2026-09-11 00:32:41
192.131.142.0/24 19,898 2026-09-11 00:32:41
103.161.224.0/23 19,802 2026-09-11 00:32:41
104.164.38.0/24 19,771 2026-09-11 00:32:41
172.241.216.0/21 19,716 2026-09-11 00:32:41
43.249.36.0/23 19,685 2026-09-11 00:32:41
103.138.32.0/24 19,670 2026-09-11 00:32:41
64.120.112.0/21 19,587 2026-09-11 00:33:34
64.120.120.0/23 19,578 2026-09-11 00:33:34
85.155.97.0/24 19,494 2026-09-11 00:32:41
103.21.220.0/24 19,485 2026-09-11 00:32:41
85.113.71.0/24 19,174 2026-09-11 00:33:34
64.120.88.0/22 19,134 2026-09-11 00:33:34
45.39.117.0/24 19,124 2026-09-11 00:32:41
27.0.232.0/24 18,861 2026-09-11 00:32:58
203.23.128.0/24 16,493 2026-09-11 00:34:10
198.252.107.0/24 16,461 2026-09-11 00:34:10
198.252.103.0/24 16,255 2026-09-11 00:34:10
204.217.154.0/23 16,250 2026-09-11 00:32:41
178.16.235.0/24 15,788 2026-09-11 00:32:41
172.96.185.0/24 15,764 2026-09-11 00:32:41
103.133.190.0/24 15,233 2026-07-27 07:49:56
103.75.117.0/24 15,166 2026-09-11 00:34:10
96.9.228.0/23 15,143 2026-09-11 00:34:10
64.120.116.0/22 14,407 2026-09-11 00:14:37
64.120.112.0/22 14,260 2026-09-11 00:14:37
43.249.36.0/24 14,206 2026-09-11 00:14:37
43.249.37.0/24 14,188 2026-09-11 00:14:37
209.58.186.0/24 14,018 2026-09-11 00:14:37
209.58.188.0/24 14,012 2026-09-11 00:14:37
209.58.184.0/23 13,908 2026-09-11 00:14:37
64.120.90.0/23 13,650 2026-09-11 00:14:37
64.120.88.0/23 13,616 2026-09-11 00:14:37
23.19.52.0/24 2,085 2026-09-10 22:25:48
23.19.53.0/24 2,079 2026-09-10 22:25:48
45.131.153.0/24 79 2026-07-29 22:04:28

Frequently Asked Questions

What is AS133752?

AS133752 is an Autonomous System Number assigned to LEASEWEB HONG KONG 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 AS133752 announce?

AS133752 announces 15.1K IPv4 addresses distributed across 29 routed CIDR prefixes. The network is registered in Hong Kong.

Who operates AS133752?

AS133752 is operated by LEASEWEB HONG KONG LIMITED. The organization is based in Hong Kong. You can view all IP ranges and related ASNs on the organization page.

What country is AS133752 registered in?

AS133752 is registered in Hong Kong. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-11 00:39:06 UTC
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