AS53101 SIANET
Datacenter e Provedores Ltda-ME
Fraudex lists AS53101 as infrastructure that real customers rarely browse from: servers, VPN exits, proxies or bot networks. Every IP announced by this network comes back from /api/check with "is_bot": true.
Check an IP from AS53101
Look up any address in real time with the free IP checker, or from your own code:
curl "https://fraudex.xyz/api/check?ip=177.107.208.0" \ -H "X-API-Key: fx_your_key"
The answer includes the network (AS53101), the country and a VPN, proxy, Tor and bot verdict, in under a millisecond. Plans start at $40 for 30 days of unlimited lookups.
IPv4 ranges announced by AS53101
| First IP | Last IP | CIDR | Addresses |
|---|---|---|---|
| 177.107.208.0 | 177.107.215.255 | 177.107.208.0/21 | 2,048 |
| 187.103.144.0 | 187.103.149.255 | 187.103.144.0/22, 187.103.148.0/23 | 1,536 |
| 187.103.150.0 | 187.103.152.255 | 187.103.150.0/23, 187.103.152.0/24 | 768 |
| 187.103.153.0 | 187.103.159.255 | 187.103.153.0/24, 187.103.154.0/23, 187.103.156.0/22 | 1,792 |
Questions about AS53101
Is AS53101 a VPN or hosting network?
Yes. Fraudex lists AS53101 (SIANET) among the hosting, VPN, proxy and bot networks it flags, so visitors from it are usually servers or people hiding their real location rather than ordinary customers.
Which country is AS53101 registered in?
AS53101 is registered in Brazil. Individual addresses can be used elsewhere, so check the IP itself when location matters.
How many IP addresses does AS53101 have?
It announces 4 IPv4 ranges with 6,144 addresses in total.
How do I block traffic from AS53101?
Blocking a whole network by number goes stale as ranges change hands. It is more reliable to check each visitor's IP when they sign up, log in or pay: the Fraudex API returns the network and a VPN and bot verdict, so you can block, challenge or just log flagged traffic. See why an IP blocking API pays for itself.