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AS18101
RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI

AS18101 announces 531,200 IPv4 addresses across 138 routed ranges, registered in IN. Figures come from the public global routing table and are refreshed daily.

531K addressesIPv4 space announced
138Routed ranges
INRegistry country

Is AS18101 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 138 announced ranges.

Range startRange endAddresses
115.248.0.0115.248.18.2554,864
115.248.19.0115.248.50.2558,192
115.248.51.0115.248.56.2551,536
115.248.57.0115.248.66.2552,560
115.248.67.0115.248.88.2555,632
115.248.89.0115.248.96.2552,048
115.248.97.0115.248.134.2559,728
115.248.135.0115.248.137.255768
115.248.138.0115.248.176.2559,984
115.248.177.0115.248.182.2551,536
115.248.183.0115.248.215.2558,448
115.248.216.0115.248.239.2556,144
115.248.240.0115.248.254.2553,840
115.248.255.0115.249.19.2555,376
115.249.20.0115.249.68.25512,544
115.249.69.0115.249.79.2552,816
115.249.80.0115.249.96.2554,352
115.249.97.0115.249.128.2558,192
115.249.129.0115.249.130.255512
115.249.131.0115.249.147.2554,352
115.249.148.0115.249.206.25515,104
115.249.207.0115.249.210.2551,024
115.249.211.0115.249.255.25511,520
115.252.0.0115.252.71.25518,432
115.252.72.0115.252.255.25547,104
115.254.0.0115.254.7.2552,048
115.254.8.0115.254.47.25510,240
115.254.48.0115.254.83.2559,216
115.254.84.0115.254.106.2555,888
115.254.107.0115.254.122.2554,096
115.254.123.0115.254.123.255256
115.254.124.0115.254.255.25533,792
124.124.0.0124.124.1.255512
124.124.2.0124.124.3.255512
124.124.4.0124.124.7.2551,024
124.124.8.0124.124.9.255512
124.124.10.0124.124.11.255512
124.124.12.0124.124.23.2553,072
124.124.24.0124.124.36.2553,328
124.124.37.0124.124.42.2551,536
124.124.43.0124.124.58.2554,096
124.124.59.0124.124.61.255768
124.124.62.0124.124.66.2551,280
124.124.67.0124.124.69.255768
124.124.70.0124.124.79.2552,560
124.124.80.0124.124.89.2552,560
124.124.90.0124.124.98.2552,304
124.124.99.0124.124.105.2551,792
124.124.106.0124.124.124.2554,864
124.124.125.0124.124.128.2551,024
124.124.129.0124.124.192.25516,384
124.124.193.0124.124.211.2554,864
124.124.212.0124.124.218.2551,792
124.124.219.0124.124.228.2552,560
124.124.229.0124.124.238.2552,560
124.124.239.0124.124.243.2551,280
124.124.244.0124.124.255.2553,072
202.138.96.0202.138.105.2552,560
202.138.108.0202.138.108.255256
202.138.110.0202.138.115.2551,536
202.138.117.0202.138.118.255512
202.138.120.0202.138.120.255256
202.138.122.0202.138.127.2551,536
220.224.145.0220.224.145.255256
220.225.0.0220.225.3.2551,024
220.225.4.0220.225.9.2551,536
220.225.10.0220.225.11.255512
220.225.12.0220.225.13.255512
220.225.14.0220.225.25.2553,072
220.225.26.0220.225.33.2552,048
220.225.34.0220.225.46.2553,328
220.225.47.0220.225.73.2556,912
220.225.74.0220.225.76.255768
220.225.77.0220.225.78.255512
220.225.79.0220.225.83.2551,280
220.225.84.0220.225.88.2551,280
220.225.89.0220.225.90.255512
220.225.91.0220.225.97.2551,792
220.225.98.0220.225.101.2551,024
220.225.102.0220.225.125.2556,144
220.225.126.0220.225.133.2552,048
220.225.134.0220.225.137.2551,024
220.225.138.0220.225.145.2552,048
220.225.146.0220.225.192.25512,032
220.225.193.0220.225.196.2551,024
220.225.197.0220.225.202.2551,536
220.225.203.0220.225.213.2552,816
220.225.214.0220.225.219.2551,536
220.225.220.0220.225.229.2552,560
220.225.230.0220.225.233.2551,024
220.225.234.0220.225.245.2553,072
220.225.246.0220.225.254.2552,304
220.225.255.0220.226.3.2551,280
220.226.4.0220.226.22.2554,864
220.226.23.0220.226.97.25519,200
220.226.98.0220.226.105.2552,048
220.226.106.0220.226.107.255512
220.226.108.0220.226.110.255768
220.226.111.0220.226.158.25512,288
220.226.159.0220.226.170.2553,072

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 115.248.0.0, 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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