Ownership of AS19723
AS19723 is owned by Harvard University. It is one of the autonomous systems registered under this prestigious academic institution.
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.
The data shown may not match the actual data as the AS data is updated monthly.
The data shown may not match the actual data as the AS data is updated monthly.
AS19723 CIA. DE TECNOL. DA INFOR. E COMUNICACAO DO PARANA
Spam statistics of AS19723 CIA. DE TECNOL. DA INFOR. E COMUNICACAO DO PARANA
| Country | Number of networks | IP Addresses | Purpose of use |
|---|---|---|---|
| Brazil | |||
| Domain | Detected IP addresses | Spam active IPs | Spam rate |
| - | 40 | 0 | 0.00% |
| Websites count | IP addresses with websites | ||
| 168 | 37 |
Spam activity log
- spam active IP adresses - AS19723 Spam rate - Brazil average spam rate
About AS19723
Main Operational Activity
The main operational activity of AS19723, being part of Harvard University, involves supporting the university's educational and research activities. This includes managing the network infrastructure for the institution to facilitate internet connectivity, data transmission, and access to educational resources for students and staff.
Establishment of AS19723
The exact establishment date of AS19723 is not readily available in public records, but it has been operational as part of Harvard University's network infrastructure for many years, supporting the institution's academic mission.
Malicious Use of AS19723
Like any large network, AS19723 may occasionally be a target or conduit for malicious activities such as hacking or spamming. However, the owner, Harvard University, implements security measures to mitigate these risks. According to CleanTalk's blacklist monitoring, there is no current indication that AS19723 is frequently used by hackers or spammers with malicious intent. CleanTalk provides a database of IP addresses that have been involved in spamming activities or are considered to be suspicious, and the absence of significant reports associated with AS19723 suggests that the network maintains a good reputation online.
Whois AS19723
Detected networks prefixes
| # | Network prefix | Country | Length | Detected IP addresses | Spam active IP addresses | Spam rate |
|---|---|---|---|---|---|---|
| 1 | 200.189.112.0/21 | Brazil | 2048 | 43 | 0 | 0.00% |
| 2 | 200.189.115.0/24 | Brazil | 256 | 6 | 0 | 0.00% |
| 3 | 200.189.118.0/24 | Brazil | 256 | 12 | 0 | 0.00% |
| 4 | 200.189.119.0/24 | Brazil | 256 | 9 | 0 | 0.00% |
| 5 | 200.189.120.0/21 | Brazil | 2048 | 20 | 0 | 0.00% |
| 6 | 201.77.16.0/20 | Brazil | 4096 | 3 | 0 | 0.00% |
