Home / ASN Directory / AS37457

AS37457
Telkom-Internet

AS37457 announces 1,577,216 IPv4 addresses across 180 routed ranges, registered in ZA. Figures come from the public global routing table and are refreshed daily.

1.6M addressesIPv4 space announced
180Routed ranges
ZARegistry country

Is AS37457 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 180 announced ranges.

Range startRange endAddresses
2.21.160.02.21.163.2551,024
41.144.0.041.144.191.25549,152
41.144.192.041.146.63.25598,304
41.147.192.041.147.255.25516,384
41.148.129.041.148.129.255256
41.148.186.041.148.186.255256
41.148.196.041.148.197.255512
41.148.209.041.148.211.255768
41.148.214.041.148.215.255512
41.148.218.041.148.218.255256
41.148.222.041.148.222.255256
41.149.0.041.149.27.2557,168
41.149.28.041.149.68.25510,496
41.149.70.041.149.74.2551,280
41.149.76.041.149.119.25511,264
41.149.120.041.149.255.25534,816
41.150.32.041.150.63.2558,192
41.150.192.041.150.255.25516,384
41.246.160.041.246.191.2558,192
102.248.0.0102.249.95.25590,112
102.249.96.0102.251.95.255131,072
102.251.96.0102.252.95.25565,536
102.252.96.0102.253.159.25581,920
102.253.160.0102.254.255.25590,112
105.184.0.0105.184.3.2551,024
105.184.4.0105.184.6.255768
105.184.7.0105.184.21.2553,840
105.184.22.0105.184.25.2551,024
105.184.26.0105.184.29.2551,024
105.184.30.0105.184.31.255512
105.184.32.0105.184.34.255768
105.184.35.0105.184.36.255512
105.184.37.0105.184.38.255512
105.184.39.0105.184.40.255512
105.184.41.0105.184.42.255512
105.184.43.0105.184.45.255768
105.184.46.0105.184.49.2551,024
105.184.50.0105.184.51.255512
105.184.52.0105.184.64.2553,328
105.184.65.0105.184.66.255512
105.184.67.0105.184.68.255512
105.184.69.0105.184.76.2552,048
105.184.77.0105.184.86.2552,560
105.184.87.0105.184.90.2551,024
105.184.91.0105.184.94.2551,024
105.184.95.0105.184.110.2554,096
105.184.111.0105.184.117.2551,792
105.184.118.0105.184.123.2551,536
105.184.124.0105.184.126.255768
105.184.127.0105.184.146.2555,120
105.184.147.0105.184.154.2552,048
105.184.155.0105.184.167.2553,328
105.184.168.0105.184.175.2552,048
105.184.176.0105.184.179.2551,024
105.184.180.0105.184.187.2552,048
105.184.188.0105.184.190.255768
105.184.191.0105.184.195.2551,280
105.184.196.0105.184.197.255512
105.184.198.0105.184.199.255512
105.184.200.0105.184.211.2553,072
105.184.212.0105.184.222.2552,816
105.184.223.0105.184.228.2551,536
105.184.229.0105.184.230.255512
105.184.231.0105.184.232.255512
105.184.233.0105.184.238.2551,536
105.184.239.0105.184.240.255512
105.184.241.0105.186.65.25586,272
105.186.66.0105.186.71.2551,536
105.186.72.0105.186.74.255768
105.186.75.0105.186.156.25520,992
105.186.157.0105.186.162.2551,536
105.186.163.0105.186.169.2551,792
105.186.170.0105.186.172.255768
105.186.173.0105.186.188.2554,096
105.186.189.0105.186.202.2553,584
105.186.203.0105.186.209.2551,792
105.186.210.0105.186.212.255768
105.186.213.0105.186.218.2551,536
105.186.219.0105.186.222.2551,024
105.186.223.0105.186.224.255512
105.186.225.0105.186.234.2552,560
105.186.235.0105.186.245.2552,816
105.186.246.0105.187.24.2558,960
105.187.25.0105.187.29.2551,280
105.187.30.0105.187.31.255512
105.187.32.0105.187.33.255512
105.187.34.0105.187.35.255512
105.187.36.0105.187.40.2551,280
105.187.41.0105.187.43.255768
105.187.44.0105.187.45.255512
105.187.46.0105.187.47.255512
105.187.48.0105.187.129.25520,992
105.187.130.0105.187.223.25524,064
105.187.224.0105.187.229.2551,536
105.187.230.0105.187.238.2552,304
105.187.239.0105.187.255.2554,352
105.224.0.0105.224.15.2554,096
105.224.16.0105.224.50.2558,960
105.224.51.0105.224.53.255768
105.224.54.0105.224.107.25513,824

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 2.21.160.0, 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: 2.21.160.0 IP intelligence Free IP lookup Hosting provider ranges Residential proxy networks TLS fingerprinting