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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AS19994 RACKSPACE, page 15

Spam statistics of AS19994 RACKSPACE

United States
Number of networks
3 663
IP Addresses
322 408
Purpose of use
Paid VPN, Hosting, pay_system
Detected IP addresses
18 790
Spam active IPs
Spam rate
Websites count
335 027
IP addresses with websites
49 222

Spam activity log

— spam active IP adresses

WhoIs AS: as19994


SPAM active IP addresses in AS19994 RACKSPACE

#Sender IPDetectedLast seenReported as spam 07:04:152021-06-23 08:00:4014 10:25:592021-06-22 13:00:4414
350.56.51.1802020-08-01 00:47:042021-06-21 13:30:4816
4173.45.238.232018-11-17 02:25:312021-06-19 20:40:4675
5173.203.88.1662017-12-18 14:19:082021-06-15 05:25:587

Detected networks prefixes

#Network prefixCountryLengthDetected IP addressesSpam active IP addressesSpam rate
421198.101.140.0/22United States10242200.00%
422198.101.144.0/22United States10243200.00%
423198.101.148.0/22United States10242100.00%
424198.101.152.0/22United States10244500.00%
425198.101.156.0/22United States10245200.00%
426198.101.160.0/22United States10245200.00%
427198.101.164.0/22United States10245100.00%
428198.101.168.0/22United States10245400.00%
429198.101.172.0/22United States10243400.00%
430198.101.184.0/22United States10242800.00%
431198.254.72.0/22United States1024400.00%
432198.254.72.0/21United States2048500.00%
433198.254.76.0/22United States1024100.00%
434199.180.186.0/24United States2563000.00%
435204.9.188.0/24United States256100.00%
436204.13.108.0/24United States2565000.00%
437204.13.108.0/22United States102411800.00%
438204.13.110.0/24United States2563600.00%
439204.13.111.0/24United States2562400.00%
440204.251.175.0/24United States256900.00%
441209.61.166.0/23United States5122000.00%