CleanTalk keeps track of the IP addresses in spam messages, to help Hosting and ISP companies to know about suspicious activity in the address space of a company. The presence of IP addresses in this list, it is an occasion to start audit server security that uses a particular address.
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AS17920 Ultra Serve Internet Pty Ltd - Transit AS - Hosting Provider

Spam statistics of AS17920 Ultra Serve Internet Pty Ltd - Transit AS - Hosting Provider

Country
Australia
Number of networks
13490
IP Addresses
65535
Purpose of use
Hosting
Domain
-
Detected IP addresses
13 485
Spam active IPs
3 244
Spam rate
24.06%

Spam activity log

— spam active IP adresses

WhoIs AS: as17920

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SPAM active IP addresses in AS17920 Ultra Serve Internet Pty Ltd - Transit AS - Hosting Provider

#Sender IPDetectedLast seenReported as spam
1113.193.235.1382018-12-04 12:14:282019-10-14 08:33:0060
2113.194.130.1042018-12-07 02:23:142019-10-08 14:55:513
3113.194.133.2422018-06-28 14:02:382019-10-10 06:32:385
4113.199.255.872018-04-29 15:44:482019-10-04 14:25:098
5113.203.238.1792018-03-10 05:59:052019-10-15 06:43:4068
6113.204.147.262016-02-23 06:15:202019-10-12 23:16:406
7113.210.58.412017-03-03 03:06:292019-10-11 11:57:434
8113.210.96.422019-01-28 11:29:282019-10-11 09:27:514

Detected networks prefixes

#Network prefixCountryLengthDetected IP addressesSpam active IP addressesSpam rate
1113.192.0.0/18Australia1638413815323623.42%
2203.17.208.0/22Australia1024100.00%
3203.145.32.0/19Australia8192200.00%