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AS37054
Telecom-Malagasy

AS37054 announces 471,808 IPv4 addresses across 52 routed ranges, registered in MG. Figures come from the public global routing table and are refreshed daily.

472K addressesIPv4 space announced
52Routed ranges
MGRegistry country

Is AS37054 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 52 announced ranges.

Range startRange endAddresses
41.188.0.041.188.21.2555,632
41.188.22.041.188.63.25510,752
41.207.32.041.207.63.2558,192
102.16.0.0102.16.14.2553,840
102.16.15.0102.16.53.2559,984
102.16.54.0102.16.55.255512
102.16.56.0102.16.73.2554,608
102.16.74.0102.16.77.2551,024
102.16.78.0102.16.84.2551,792
102.16.85.0102.16.103.2554,864
102.16.104.0102.16.115.2553,072
102.16.116.0102.16.172.25514,592
102.16.173.0102.16.242.25517,920
102.16.243.0102.17.57.25518,176
102.17.58.0102.17.68.2552,816
102.17.69.0102.17.71.255768
102.17.72.0102.17.177.25527,136
102.17.178.0102.17.198.2555,376
102.17.199.0102.17.206.2552,048
102.17.207.0102.18.52.25526,112
102.18.53.0102.18.55.255768
102.18.56.0102.18.57.255512
102.18.58.0102.18.81.2556,144
102.18.82.0102.18.111.2557,680
102.18.112.0102.18.115.2551,024
102.18.116.0102.18.155.25510,240
102.18.156.0102.18.163.2552,048
102.18.164.0102.18.218.25514,080
102.18.219.0102.19.191.25558,624
102.19.192.0102.20.63.25532,768
102.20.64.0102.20.127.25516,384
102.20.128.0102.21.24.25539,168
102.21.25.0102.21.63.2559,984
102.21.64.0102.21.255.25549,152
102.205.63.0102.205.63.255256
102.216.23.0102.216.23.255256
154.126.0.0154.126.4.2551,280
154.126.5.0154.126.19.2553,840
154.126.20.0154.126.34.2553,840
154.126.35.0154.126.36.255512
154.126.37.0154.126.49.2553,328
154.126.50.0154.126.74.2556,400
154.126.75.0154.126.94.2555,120
154.126.95.0154.126.96.255512
154.126.97.0154.126.127.2557,936
192.139.15.0192.139.15.255256
196.192.32.0196.192.47.2554,096
197.149.0.0197.149.20.2555,376
197.149.21.0197.149.49.2557,424
197.149.50.0197.149.57.2552,048
197.149.58.0197.149.62.2551,280
197.149.63.0197.149.63.255256

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 41.188.0.0, 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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