R3volved Tech How to Conduct an IP Block Lookup

How to Conduct an IP Block Lookup

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If you are a business owner, IT administrator or security researcher who is investigating an incident, it’s important to be able to identify the IP address of the network from which an unauthorized activity originated. IP block lookup is a way to do that, and it can help you take more targeted action against hackers, spammers and phishers.

A IP block lookup can give you information about whether or not an IP address is in working order, and a reverse DNS lookup can show you which ISP and web hosting/server provider is using the network. However, the most powerful tools for conducting IP block lookup are those that allow you to query and test against RIR databases — such as the American Registry for Internet Numbers (ARIN) and its five regional networks.

Unveiling the Source: Exploring IP Block Lookup Tools

ARIN’s database provides a wealth of information about an IP address, including the network type, registration date and update, and the AS (Autonomous System Number) associated with the network. In addition, it can help you determine which organizations manage respective IP blocks, explore how different networks are connected, and identify abusive contact details related to those IP ranges.

Often, businesses are added to IP blocklists because their servers have been associated with malicious or suspicious activity. The good news is that getting an IP delisted from a blocklist is possible, once you know the steps to take.

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