Home / ASN Directory / AS197540

AS197540
NETCUP-AS netcup GmbH

AS197540 announces 196,352 IPv4 addresses across 90 routed ranges, registered in DE. Figures come from the public global routing table and are refreshed daily.

196K addressesIPv4 space announced
90Routed ranges
DERegistry country

Is AS197540 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 90 announced ranges.

Range startRange endAddresses
2.56.96.02.56.99.2551,024
5.45.96.05.45.111.2554,096
5.181.48.05.181.51.2551,024
5.182.200.05.182.200.255256
5.182.202.05.182.203.255512
5.252.224.05.252.227.2551,024
37.120.160.037.120.179.2555,120
37.120.182.037.120.191.2552,560
37.221.192.037.221.199.2552,048
45.9.60.045.9.63.2551,024
45.83.104.045.83.107.2551,024
45.90.4.045.90.7.2551,024
45.129.180.045.129.183.2551,024
45.132.244.045.132.247.2551,024
45.136.28.045.136.31.2551,024
45.142.176.045.142.179.2551,024
45.157.176.045.157.179.2551,024
46.38.224.046.38.255.2558,192
46.232.248.046.232.251.2551,024
81.16.16.081.16.19.2551,024
85.209.48.085.209.51.2551,024
85.235.64.085.235.67.2551,024
89.58.0.089.58.63.25516,384
91.132.144.091.132.147.2551,024
91.204.44.091.204.46.255768
91.204.47.091.204.47.255256
92.60.36.092.60.39.2551,024
93.177.64.093.177.67.2551,024
94.16.30.094.16.31.255512
94.16.104.094.16.123.2555,120
152.53.0.0152.53.3.2551,024
152.53.5.0152.53.5.255256
152.53.12.0152.53.23.2553,072
152.53.32.0152.53.35.2551,024
152.53.42.0152.53.51.2552,560
152.53.60.0152.53.61.255512
152.53.64.0152.53.67.2551,024
152.53.84.0152.53.87.2551,024
152.53.92.0152.53.95.2551,024
152.53.100.0152.53.163.25516,384
152.53.172.0152.53.191.2555,120
152.53.196.0152.53.200.2551,280
152.53.202.0152.53.202.255256
152.53.204.0152.53.207.2551,024
152.53.224.0152.53.231.2552,048
152.53.236.0152.53.239.2551,024
152.53.244.0152.53.255.2553,072
152.89.104.0152.89.107.2551,024
159.195.1.0159.195.1.255256
159.195.4.0159.195.11.2552,048
159.195.20.0159.195.89.25517,920
159.195.96.0159.195.106.2552,816
159.195.108.0159.195.115.2552,048
159.195.118.0159.195.141.2556,144
159.195.143.0159.195.154.2553,072
159.195.156.0159.195.159.2551,024
159.195.192.0159.195.219.2557,168
185.16.60.0185.16.63.2551,024
185.48.228.0185.48.231.2551,024
185.158.212.0185.158.215.2551,024
185.162.248.0185.162.251.2551,024
185.163.116.0185.163.119.2551,024
185.170.112.0185.170.115.2551,024
185.183.156.0185.183.159.2551,024
185.194.140.0185.194.143.2551,024
185.207.104.0185.207.107.2551,024
185.216.176.0185.216.179.2551,024
185.228.136.0185.228.139.2551,024
185.232.68.0185.232.71.2551,024
185.233.104.0185.233.107.2551,024
185.243.8.0185.243.9.255512
185.243.10.0185.243.11.255512
185.244.192.0185.244.195.2551,024
188.68.32.0188.68.60.2557,424
188.68.61.0188.68.63.255768
188.172.228.0188.172.229.255512
192.145.44.0192.145.47.2551,024
193.26.156.0193.26.159.2551,024
193.30.120.0193.30.123.2551,024
193.31.24.0193.31.27.2551,024
193.102.202.0193.102.202.255256
194.13.80.0194.13.83.2551,024
194.36.144.0194.36.147.2551,024
194.55.12.0194.55.15.2551,024
194.59.204.0194.59.207.2551,024
195.128.100.0195.128.103.2551,024
202.61.192.0202.61.207.2554,096
202.61.224.0202.61.233.2552,560
202.61.234.0202.61.255.2555,632
213.109.160.0213.109.163.2551,024

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 2.56.96.0, 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.

Check a specific address in this AS.
Live VPN, proxy, Tor, and datacenter signals. Free tier, 1,000 requests/hour.
Get a free API key →
All ASNs Example: 2.56.96.0 IP intelligence Free IP lookup Hosting provider ranges Residential proxy networks TLS fingerprinting