How can I retrieve a deleted Phone Number?

If you have deleted a number in your Call Logs that is not associated with your Address Book:

On your BlackBerry homescreen:

1. Hold down the ALT key and type LGLG

2. Press Menu and then Options

3. Scroll down into the event list

4. Press Menu and “Hide all Types”

5. Scroll down and Highlight PhoneApp

6. Press Menu and press Toggle Filter

7. Menu > Save

Now, you will see a lot of what appears to be gibberish. This shows all calls and numbers to the phone. You need to dig through to find the deleted number. When you find it, select the entry and it will show the full number.
Thanks to Thatzmister2u @ BlackBerryForums.com for this FAQ content.

Software Siemens Simatic WinCC/Server v 7.3 6AV6 371-1CA07-3AX0 picture
Software Siemens Simatic WinCC/Server v 7.3 6AV6 371-1CA07-3AX0
$1200.0 Waitress Waiter Server 3 Pocket Waist Apron Restaurant Bib Bar Cotton 10 Pc New picture
Waitress Waiter Server 3 Pocket Waist Apron Restaurant Bib Bar Cotton 10 Pc New
$30.65 VERINT NEXTIVA S1950E-T & S1970E-R VIDEO SERVER/RECEIVER picture
VERINT NEXTIVA S1950E-T & S1970E-R VIDEO SERVER/RECEIVER
$58.95 NIB ABSOLUT VODKA Essential Kit Bar and Server Mat picture
NIB ABSOLUT VODKA Essential Kit Bar and Server Mat
$12.99 Server Products DFD-C Dry Food Dispenser Kit Shelf Mounted BRAND NEW No Bracket picture
Server Products DFD-C Dry Food Dispenser Kit Shelf Mounted BRAND NEW No Bracket
$44.95