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AS9674
FET-TW Far EastTone Telecommunication Co., Ltd.

AS9674 announces 1,832,192 IPv4 addresses across 30 routed ranges, registered in TW. Figures come from the public global routing table and are refreshed daily.

1.8M addressesIPv4 space announced
30Routed ranges
TWRegistry country

Is AS9674 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 30 announced ranges.

Range startRange endAddresses
27.51.0.027.51.159.25540,960
27.51.160.027.53.255.255155,648
27.240.0.027.242.255.255196,608
27.243.0.027.247.255.255327,680
39.9.0.039.10.79.25586,016
39.12.80.039.12.255.25545,056
39.14.0.039.14.79.25520,480
39.14.160.039.15.239.25586,016
61.20.0.061.20.191.25549,152
61.20.192.061.20.222.2557,936
61.20.223.061.20.255.2558,448
106.64.0.0106.64.95.25524,576
106.64.96.0106.64.255.25540,960
110.24.0.0110.28.159.255303,104
110.28.160.0110.31.255.255221,184
114.140.0.0114.140.255.25565,536
118.231.0.0118.231.223.25557,344
118.231.224.0118.231.255.2558,192
210.241.192.0210.241.208.2554,352
210.241.209.0210.241.223.2553,840
211.73.128.0211.73.159.2558,192
211.77.0.0211.77.38.2559,984
211.77.39.0211.77.42.2551,024
211.77.43.0211.77.54.2553,072
211.77.55.0211.77.241.25547,872
211.77.242.0211.77.245.2551,024
211.77.246.0211.77.255.2552,560
223.22.128.0223.22.128.255256
223.22.232.0223.22.247.2554,096
223.22.252.0223.22.255.2551,024

Check a specific address

The AS tells you who announces a range. Whether one address inside it is currently a tunnel is a live question, answered per address — for example 27.51.0.0, the first address in this AS's announced space. The free lookup tool takes any address, and the IP intelligence hub explains what each signal means.

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