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That one was both easy and tricky, if that makes sense.

Easy because the morse code part clicked instantly. Tricky because how you assigned the 1s and 0s to dots and dashes alternated. I got gibberish and a different number the first time I did it, but once I realized what was going on, I got: What number is this 7659221010

McDuck wrote:That one was both easy and tricky, if that makes sense.

Easy because the morse code part clicked instantly. Tricky because how you assigned the 1s and 0s to dots and dashes alternated. I got gibberish and a different number the first time I did it, but once I realized what was going on, I got: What number is this 7659221010

That's not "exactly" correct, but I am confident that if you had the book, you would have it.
The alternating Morse switches over on the phone #, which is actually 310 477 6565.
And the "answer is: LA FBI

Next cipher:
6365696a647a727573697775716d6d6e736e69627a74736a6f7969706469737967647163656c6f71
776c66646d63656d78626c6879746d796f6d71747765686a6a71656d756c70696b6a627965696a71

I identified the FBI cellphones that where calling Eric by hacking into this cellular provider.

Emann wrote:I identified the FBI cellphones that where calling Eric by hacking into this cellular provider.

That's it. And the answer is "PacTel" (in LA) . Next cipher: (this one might be a little tough, maybe...)

hranmoafignwoeoeiettwsoeheneteelaefnbaethscvrdniyajspwrl

The real name of an FBI agent whose cover identity was Joseph Wernle

Emann wrote:The real name of an FBI agent whose cover identity was Joseph Wernle

You got it. The answer was JOSEPH WAYS. Next cipher:

yo kb pn oc ox rh oq kb oh kp ge gs yt yt hg sa li mt ob sa po po mk pl md

The company Teltec hacked into to get information on people.

Emann wrote:The company Teltec hacked into to get information on people.

Yep. It was "TRW" Next cipher:

77726e6b7668656a77676b6b276c6d6b6274616672656567776c6a7368697a70726f6d79656c

Darrell Santo's voicemail password was this.

Emann wrote:Darrell Santo's voicemail password was this.

That was quick. The answer was "1313" Next cipher:

opoybdpmwoqbcpqcygagpcgxbpusapdluscplchxwoisgyeasdcpopdhadfyaethis