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by pogue 474 days ago
Very helpful, thanks. I came across this site from the FCC for reassigned numbers, but I'm not quite sure how to use it. Is this the right site? www.reassigned.us

Was the Michael Bazzell book you're referring to "Open Source Intelligence Techniques: Resources for Searching and Analyzing Online Information" or the "OSINT Techniques: Resources for Uncovering Online Information" (both around $44 on Amazon)?
1 comments
trod1234 474 days ago
There are a number of services that allow you to query that database. I'm not familiar with reassigned.us

> OSINT Techniques...

Yes that's the one. Its in its 10th edition now I believe, pubbed in 2023. ISBN 9798366360401

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pogue 474 days ago
Do you have any suggestions for a free tool to query the reassigned numbers database?

Thanks for the help!

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trod1234 474 days ago
Unfortunately I'm not aware of any free tool that lets you query it. Each query costs me a few cents so I try to minimize queries. Twilio has a package available in their API to do this.

https://www.twilio.com/docs/lookup/v2-api/reassigned-number

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