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AS10013
FBDC FreeBit Co.,Ltd.

AS10013 announces 1,944,064 IPv4 addresses across 145 routed ranges, registered in JP. Figures come from the public global routing table and are refreshed daily.

1.9M addressesIPv4 space announced
145Routed ranges
JPRegistry country

Is AS10013 datacenter space?

Not according to the nine cloud and CDN providers whose published range lists we track. That is a statement about those specific lists, not proof the space is residential — plenty of hosting companies never publish machine-readable ranges, and this AS may well be one of them.

The reliable way to classify a specific address is to check it directly rather than to infer from the AS. The free lookup tool returns live tunnel and datacenter signals for any address.

What an AS number does and does not tell you

An autonomous system number identifies who announces a block of addresses to the internet's routing table. It is an organisational fact, and a durable one — useful for attributing traffic to a hosting company, a carrier, or a university.

It is not a risk signal. A residential ISP's AS carries the household traffic of millions of ordinary customers and, at the same time, whatever residential proxy exits have been installed on those customers' devices. A hosting AS carries scrapers and legitimate server-to-server integrations in the same ranges. Scoring an address on the reputation of its AS produces exactly the false positives that make fraud tooling untrustworthy.

Sentinel does not feed AS names or routing data into its risk score. Tunnel detection comes from live network intelligence, and the dch signal comes from provider-published ranges. This directory exists to answer "who announces this address," which is a different and genuinely useful question.

Announced IPv4 ranges

All 145 announced ranges.

Range startRange endAddresses
14.128.64.014.128.127.25516,384
27.54.124.027.54.127.2551,024
27.120.64.027.120.143.25520,480
27.120.180.027.120.255.25519,456
27.132.9.027.132.175.25542,752
27.132.192.027.133.9.25518,944
27.133.12.027.133.23.2553,072
27.133.46.027.133.47.255512
27.133.90.027.133.127.2559,728
27.133.160.027.133.171.2553,072
27.133.184.027.133.191.2552,048
27.134.0.027.134.15.2554,096
27.134.22.027.134.71.25512,800
27.134.80.027.134.95.2554,096
27.134.176.027.134.188.2553,328
27.135.0.027.135.56.25514,592
27.135.73.027.135.255.25546,848
36.52.0.036.52.15.2554,096
36.52.26.036.52.95.25517,920
36.52.126.036.52.135.2552,560
36.52.174.036.52.222.25512,544
36.52.238.036.52.255.2554,608
36.53.192.036.53.231.25510,240
36.54.0.036.55.255.255131,072
43.244.0.043.244.255.25565,536
49.240.0.049.242.63.255147,456
49.242.192.049.243.255.25581,920
59.156.0.059.156.20.2555,376
59.156.24.059.156.24.255256
59.156.29.059.156.134.25527,136
59.156.160.059.156.199.25510,240
59.156.203.059.156.239.2559,472
59.157.0.059.157.207.25553,248
59.157.224.059.157.255.2558,192
61.5.224.061.5.239.2554,096
61.5.242.061.5.243.255512
61.5.245.061.5.255.2552,816
61.8.80.061.8.95.2554,096
61.12.128.061.12.255.25532,768
61.44.16.061.44.66.25513,056
61.44.68.061.44.127.25515,360
61.44.208.061.44.223.2554,096
61.87.0.061.87.7.2552,048
61.87.14.061.87.31.2554,608
61.120.208.061.120.223.2554,096
61.192.128.061.192.255.25532,768
61.195.0.061.195.7.2552,048
61.195.16.061.195.31.2554,096
61.203.164.061.203.175.2553,072
61.205.40.061.205.63.2556,144
61.211.240.061.211.255.2554,096
103.2.160.0103.2.163.2551,024
110.0.0.0110.2.191.255180,224
110.2.224.0110.3.175.25553,248
110.3.184.0110.3.255.25518,432
110.74.48.0110.74.63.2554,096
110.74.112.0110.74.116.2551,280
110.74.121.0110.74.123.255768
110.74.126.0110.74.127.255512
110.74.232.0110.74.255.2556,144
111.232.0.0111.234.47.255143,360
111.234.52.0111.234.119.25517,408
111.234.218.0111.234.245.2557,168
111.235.0.0111.235.38.2559,984
111.235.40.0111.235.45.2551,536
111.235.48.0111.235.63.2554,096
112.78.220.0112.78.220.255256
113.213.240.0113.213.255.2554,096
115.178.112.0115.178.119.2552,048
119.150.96.0119.150.106.2552,816
119.150.112.0119.150.205.25524,064
119.150.215.0119.150.227.2553,328
119.150.239.0119.150.239.255256
121.50.152.0121.50.159.2552,048
122.145.0.0122.145.38.2559,984
122.145.40.0122.145.47.2552,048
122.145.116.0122.145.129.2553,584
122.145.131.0122.145.223.25523,808
122.152.0.0122.152.15.2554,096
123.50.0.0123.50.31.2558,192
124.255.48.0124.255.207.25540,960
153.120.192.0153.120.221.2557,680
153.120.224.0153.120.255.2558,192
153.121.255.0153.121.255.255256
175.28.52.0175.28.62.2552,816
175.103.128.0175.103.129.255512
175.103.144.0175.103.151.2552,048
175.103.164.0175.103.165.255512
175.103.176.0175.103.177.255512
175.103.180.0175.103.191.2553,072
175.103.216.0175.103.223.2552,048
175.104.0.0175.105.255.255131,072
175.176.196.0175.176.199.2551,024
180.131.96.0180.131.126.2557,936
180.235.144.0180.235.147.2551,024
182.163.32.0182.163.95.25516,384
182.236.0.0182.236.11.2553,072
182.236.13.0182.236.63.25513,056
183.181.0.0183.181.73.25518,944
183.181.103.0183.181.121.2554,864

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