AS721 DNIC-ASBLK-00721-00726

Spam statistics of AS721 DNIC-ASBLK-00721-00726

CountryNumber of networksIP AddressesPurpose of use
United States
DomainDetected IP addressesSpam active IPsSpam rate
-1 89800.00%
Websites countIP addresses with websites
1 4411 097

Spam activity log

- spam active IP adresses

About AS721


Owner of AS721


The owner of Autonomous System Number (AS) 721 is the United States Department of Defense Network (DoD Network), commonly referred to as DoDNET. This network is managed by the United States government and is primarily used for defense-related purposes.



Main Operational Activity of AS721's Owner


The main operational activity of AS721's owner, the United States Department of Defense, includes providing information systems and technology support that are required for military services. This encompasses secure communication channels, strategic command and control, intelligence sharing, and various other functions crucial to national security operations.



Establishment of AS721


AS721 has been in operation since the early days of the internet, but the specific date of establishment is not publicly documented. As a critical infrastructure component of the U.S. Department of Defense, it has likely been active since the creation of the Defense Data Network in the 1980s, which was one of the precursors to the modern internet.



Malicious Use of AS721


While any network can be susceptible to misuse, there is no specific information available indicating that AS721 is being used by hackers or spammers with malicious intent at a scale that is notable. The Department of Defense has significant cybersecurity measures in place to protect its network infrastructure. However, according to CleanTalk's blacklist monitoring page, there may have been isolated instances of malicious activity detected coming from this AS.



For detailed and up-to-date information regarding any potential abuses originating from AS721, one would need to refer to resources like CleanTalk's blacklist data, which tracks reported incidences of spam or hacking attempts associated with various autonomous systems.


WhoIs AS721

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Detected networks prefixes

#Network prefixCountryLengthDetected IP addressesSpam active IP addressesSpam rate
1143.84.0.0/16United States6553625710.00%
255.0.0.0/8United States16777216151100.00%
355.0.0.0/22United States1024100.00%
455.0.52.0/22United States1024100.00%
555.4.60.0/22United States1024100.00%
655.4.116.0/22United States1024100.00%
755.4.148.0/22United States1024100.00%
855.4.156.0/22United States1024100.00%
955.4.160.0/22United States1024100.00%
1055.5.60.0/22United States1024100.00%
1155.5.124.0/22United States1024100.00%
1255.5.148.0/22United States1024100.00%
1355.5.160.0/22United States1024100.00%
1455.9.4.0/22United States1024100.00%
1555.9.8.0/22United States1024100.00%
1655.9.32.0/22United States1024100.00%
1755.9.72.0/22United States1024100.00%
1855.9.76.0/22United States1024100.00%
1955.9.84.0/22United States1024100.00%
2055.9.96.0/22United States1024100.00%
2155.9.156.0/22United States1024100.00%
2255.9.204.0/22United States1024100.00%
2355.9.228.0/22United States1024100.00%
2455.12.136.0/22United States1024100.00%
2555.12.148.0/22United States1024100.00%
2655.12.192.0/22United States1024100.00%
2755.12.224.0/22United States1024100.00%
2855.12.248.0/22United States1024100.00%
2955.14.0.0/16United States65536700.00%
3055.14.20.0/22United States1024100.00%

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