After Reset, Lock Code for Sanyo RL-4920?

I got a Sanyo RL-4920 off eBay, and not surprisingly everything the old user put on the phone was still there. I could have called and told them, but decided I am a responsible citizen and hit ##786# and did a Master Reset.

I have the MSN or MSC or whatever that 6 digit code is, so I can reprogram and reset my phone all day long. The problem is now that it is reset, I have no idea what the default "Lock Code" is so I can modify some settings on the phone. I originally wanted to just clear the Phone Number directory, but didn't have the original lock code, which Sprint sets to the last 4 of your SSN. I probably wasn't gonna get that from Sprint.

So, anyone know what my Lock Code is after a Master Reset?

 

Don't you love it when your 2nd post is the answer to your first?

It seems the phone resets to the last 4 digits of the programmed phone number until you change it manually. After the reset the phone # was 0000007655, then I changed it to xxx-xxx-yyyy and the passcode was yyyy. I guess I better change it again to protect meself!

A second followup question. The manual states:

Anyone ever tried this? And if so, is the Unlock code that 6 digit MDN or MSN code that sprint tells you if you say you are switching ESNs?

 

Does anyone know what the unlock code is then? I assume it is some number only Sprint has, and hopefully is based on the ESN rather than anything else. I'm just curious -- I want to test the feature, but am unwilling to have my phone be useless until I visit a Sprint Store. Can customer care do it over the phone?