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Autonomous System

AS207550

Oclayer Limited

Announced IPs
63,232
CIDR prefixes
211
ASN
AS207550

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 →

⚠ 4 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS207550 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)
187.79.207.0/24 AS134823, AS207550 2026-09-10 14:55:46
187.79.204.0/22 AS134823, AS207550 2026-09-10 14:55:46
187.79.204.0/24 AS134823, AS207550 2026-09-10 14:55:46
187.79.205.0/24 AS134823, AS207550 2026-09-10 14:55:46

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
120.31.164.0/22 1.0K
0.0%
Oclayer Limited CN
180.223.240.0/22 1.0K
0.0%
Korea Telecom CN
187.79.196.0/22 1.0K
0.0%
Oclayer Limited TW Tainan Tainan
58.66.28.0/23 512
0.0%
Oclayer Limited CN
58.66.100.0/23 512
0.0%
Oclayer Limited CN
58.66.164.0/23 512
0.0%
Oclayer Limited CN
58.66.216.0/23 512
0.0%
Oclayer Limited CN
58.67.40.0/23 512
0.0%
Oclayer Limited CN
58.67.104.0/23 512
0.0%
Oclayer Limited CN
59.107.206.0/23 512
0.0%
Oclayer Limited CN
119.38.146.0/23 512
0.0%
Oclayer Limited CN
119.38.154.0/23 512
0.0%
Oclayer Limited CN
119.38.166.0/23 512
0.0%
Oclayer Limited CN
119.38.170.0/23 512
0.0%
Oclayer Limited CN
119.38.176.0/23 512
0.0%
Oclayer Limited CN
119.38.184.0/23 512
0.0%
Oclayer Limited CN
120.31.148.0/23 512
0.0%
Oclayer Limited CN
120.31.156.0/23 512
0.0%
Oclayer Limited CN
120.31.162.0/23 512
0.0%
Oclayer Limited CN
120.31.186.0/23 512
0.0%
Oclayer Limited CN
120.31.190.0/23 512
0.0%
Oclayer Limited CN
120.31.200.0/23 512
0.0%
Oclayer Limited CN
120.31.208.0/23 512
0.0%
Oclayer Limited CN
120.31.220.0/23 512
0.0%
Oclayer Limited CN
120.31.226.0/23 512
0.0%
Oclayer Limited CN
120.31.234.0/23 512
0.0%
Oclayer Limited CN
120.31.250.0/23 512
0.0%
Oclayer Limited CN
151.247.10.0/23 512
0.0%
Oclayer Limited AE
180.223.18.0/23 512
0.0%
Oclayer Limited CN
180.223.140.0/23 512
0.0%
Oclayer Limited CN
180.223.168.0/23 512
0.0%
Oclayer Limited CN
199.237.86.0/23 512
0.0%
Oclayer Limited US California Los Angeles
199.237.90.0/23 512
0.0%
Oclayer Limited US California Los Angeles
58.66.0.0/24 256
0.0%
Oclayer Limited CN
58.66.2.0/24 256
0.0%
Oclayer Limited CN
58.66.13.0/24 256
0.0%
Oclayer Limited CN
58.66.14.0/24 256
0.0%
Oclayer Limited CN
58.66.21.0/24 256
0.0%
Oclayer Limited CN
58.66.39.0/24 256
0.0%
Oclayer Limited CN
58.66.49.0/24 256
0.0%
Oclayer Limited CN
58.66.50.0/24 256
0.0%
Oclayer Limited CN
58.66.57.0/24 256
0.0%
Oclayer Limited CN
58.66.65.0/24 256
0.0%
Oclayer Limited CN
58.66.73.0/24 256
0.0%
Oclayer Limited CN
58.66.76.0/24 256
0.0%
Oclayer Limited CN
58.66.91.0/24 256
0.0%
Oclayer Limited CN
58.66.94.0/24 256
0.0%
Oclayer Limited CN
58.66.97.0/24 256
0.0%
Oclayer Limited CN
58.66.98.0/24 256
0.0%
Oclayer Limited CN
58.66.103.0/24 256
0.0%
Oclayer Limited CN
58.66.107.0/24 256
0.0%
Oclayer Limited CN
58.66.113.0/24 256
0.0%
Oclayer Limited CN
58.66.116.0/24 256
0.0%
Oclayer Limited CN
58.66.129.0/24 256
0.0%
Oclayer Limited CN
58.66.130.0/24 256
0.0%
Oclayer Limited CN
58.66.136.0/24 256
0.0%
Oclayer Limited CN
58.66.142.0/24 256
0.0%
Oclayer Limited CN
58.66.145.0/24 256
0.0%
Oclayer Limited CN
58.66.147.0/24 256
0.0%
Oclayer Limited CN
58.66.155.0/24 256
0.0%
Oclayer Limited CN
58.66.156.0/24 256
0.0%
Oclayer Limited CN
58.66.166.0/24 256
0.0%
Oclayer Limited CN
58.66.169.0/24 256
0.0%
Oclayer Limited CN
58.66.171.0/24 256
0.0%
Oclayer Limited CN
58.66.187.0/24 256
0.0%
Oclayer Limited CN
58.66.189.0/24 256
0.0%
Oclayer Limited CN
58.66.194.0/24 256
0.0%
Oclayer Limited CN
58.66.197.0/24 256
0.0%
Oclayer Limited CN
58.66.206.0/24 256
0.0%
Oclayer Limited CN
58.66.222.0/24 256
0.0%
Oclayer Limited CN
58.66.242.0/24 256
0.0%
Oclayer Limited CN
58.66.255.0/24 256
0.0%
Oclayer Limited CN
58.67.5.0/24 256
0.0%
Oclayer Limited CN
58.67.7.0/24 256
0.0%
Oclayer Limited CN
58.67.8.0/24 256
0.0%
Oclayer Limited CN
58.67.25.0/24 256
0.0%
Oclayer Limited CN
58.67.27.0/24 256
0.0%
Oclayer Limited CN
58.67.29.0/24 256
0.0%
Oclayer Limited CN
58.67.30.0/24 256
0.4%
Oclayer Limited CN
58.67.33.0/24 256
0.0%
Oclayer Limited CN
58.67.34.0/24 256
0.0%
Oclayer Limited CN
58.67.39.0/24 256
0.0%
Oclayer Limited CN
58.67.42.0/24 256
0.0%
Oclayer Limited CN
58.67.48.0/24 256
0.0%
Oclayer Limited CN
58.67.55.0/24 256
0.0%
Oclayer Limited CN
58.67.57.0/24 256
0.0%
Oclayer Limited CN
58.67.62.0/24 256
0.0%
Oclayer Limited CN
58.67.65.0/24 256
0.0%
Oclayer Limited CN
58.67.67.0/24 256
0.0%
Oclayer Limited CN
58.67.68.0/24 256
0.0%
Oclayer Limited CN
58.67.72.0/24 256
0.0%
Oclayer Limited CN
58.67.82.0/24 256
0.0%
Oclayer Limited CN
58.67.85.0/24 256
0.0%
Oclayer Limited CN
58.67.91.0/24 256
0.0%
Oclayer Limited CN
58.67.92.0/24 256
0.0%
Oclayer Limited CN
58.67.103.0/24 256
0.0%
Oclayer Limited CN
58.67.105.0/24 256
0.0%
Oclayer Limited CN
58.67.114.0/24 256
0.0%
Oclayer Limited CN
58.67.121.0/24 256
0.0%
Oclayer Limited CN
59.107.133.0/24 256
0.0%
Oclayer Limited CN

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS207550 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
58.66.50.0/24 1,107,590 2026-07-13 06:46:15
120.31.221.0/24 1,104,331 2026-07-13 06:46:15
58.66.187.0/24 1,103,787 2026-07-13 06:46:15
58.67.40.0/24 1,103,569 2026-07-13 06:46:15
58.67.27.0/24 1,102,124 2026-07-13 06:46:15
180.223.197.0/24 1,102,034 2026-07-13 06:46:15
58.66.116.0/24 1,101,968 2026-07-13 06:46:15
180.223.56.0/24 1,101,907 2026-07-13 06:46:15
58.66.107.0/24 1,101,616 2026-07-13 06:46:15
120.31.227.0/24 1,101,580 2026-07-13 06:46:15
119.38.184.0/24 1,100,939 2026-07-13 06:46:15
180.223.28.0/24 1,100,147 2026-07-13 06:46:15
58.66.130.0/24 1,100,012 2026-07-13 06:46:15
120.31.251.0/24 1,099,505 2026-07-13 06:46:15
180.223.145.0/24 1,098,816 2026-07-13 06:46:15
58.67.33.0/24 1,098,519 2026-07-13 06:46:15
58.66.197.0/24 1,098,302 2026-07-13 06:46:15
59.107.251.0/24 1,098,264 2026-07-13 06:46:15
180.223.243.0/24 1,097,573 2026-07-13 06:46:15
180.223.51.0/24 1,097,443 2026-07-13 06:46:15
180.223.133.0/24 1,096,368 2026-07-13 06:46:15
120.31.234.0/24 1,095,985 2026-07-13 06:46:15
180.223.189.0/24 1,095,383 2026-07-13 06:46:15
58.66.164.0/24 1,094,751 2026-07-13 06:46:15
58.67.114.0/24 1,094,658 2026-07-13 06:46:15
58.66.100.0/24 1,094,456 2026-07-13 06:46:15
180.223.143.0/24 1,094,351 2026-07-13 06:46:15
180.223.21.0/24 1,094,189 2026-07-13 06:46:15
119.38.155.0/24 1,094,068 2026-07-13 06:46:15
58.66.97.0/24 1,094,054 2026-07-13 06:46:15
59.107.235.0/24 1,093,860 2026-07-13 06:46:15
58.66.194.0/24 1,093,751 2026-07-13 06:46:15
58.66.29.0/24 1,093,459 2026-07-13 06:46:15
59.107.138.0/24 1,093,207 2026-07-13 06:46:15
58.67.7.0/24 1,092,966 2026-07-13 06:46:15
119.38.163.0/24 1,092,329 2026-07-13 06:46:15
180.223.179.0/24 1,092,301 2026-07-13 06:46:15
58.66.171.0/24 1,091,991 2026-07-13 06:46:15
180.223.240.0/24 1,091,879 2026-07-13 06:46:15
180.223.19.0/24 1,091,542 2026-07-13 06:46:15
58.67.67.0/24 1,091,296 2026-07-13 06:46:15
58.66.147.0/24 1,091,293 2026-07-13 06:46:15
58.66.101.0/24 1,091,290 2026-07-13 06:46:15
59.107.255.0/24 1,091,132 2026-07-13 06:46:15
180.223.199.0/24 1,091,081 2026-07-13 06:46:15
180.223.141.0/24 1,091,043 2026-07-13 06:46:15
180.223.169.0/24 1,090,885 2026-07-13 06:46:15
180.223.185.0/24 1,090,105 2026-07-13 06:46:15
180.223.16.0/24 1,089,918 2026-07-13 06:46:15
119.38.169.0/24 1,089,827 2026-07-13 06:46:15

Showing top 50 of 253 announced prefixes by sample volume.

Frequently Asked Questions

What is AS207550?

AS207550 is an Autonomous System Number assigned to Oclayer 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 AS207550 announce?

AS207550 announces 63.2K IPv4 addresses distributed across 211 routed CIDR prefixes. The network is registered in Hong Kong.

Who operates AS207550?

AS207550 is operated by Oclayer Limited. The organization is based in Hong Kong. You can view all IP ranges and related ASNs on the organization page.

What country is AS207550 registered in?

AS207550 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 00:54:05 UTC
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