Here are some short codes you may or may not be aware of. I searched around and collected it all here:

*611 - Customer service
*511 - Gives weather and traffic in some areas
*228 - Update your Perfered Roamers List or update the software on your Phone (CDMA phones only)
*228 80 - Force update, ignore fails
*228 99 - Force seconday tower update
*228 00 - Original tower update
#PMT (768) - Make a payment
#BAL (225) - Check current balance and last payment
#MIN (646) - Check minute usage
#DATA (3282) - Check txt and pic message usage
#VG (84) - Voice Gear - A pay service that allows you to dial numbers and access information such as stock quotes or sports scores, etc
#ROAD (7623) - Roadside assistance, not sure what the cost/service consists of exactly with VZW
#832 - Test call
*67 +10 digit number - Disable caller id for your call. The party you're calling will see 'Unavailable' instead of your number
*72 + 10 digit number - Start call forwarding. Calls will be forwarded to the number you enter if you don't answer the phone you are forwarding from
*73 - End call forwarding


And for Voicemail, here are the keypresses for some shortcuts:

*86 - go to voicemail
1 - Rewind
1-1 - Rewind to beginning of message
2 - Pause
3 - Fast Forward (can be used when leaving a message to get to the beep faster)
3-3 - Fast Forward to end of message
4 - Slower
5 - Envelope Info (date/time message was sent)
6 - Faster
7 - Delete Message
8 - Reply (only works with other Verizon Wireless Voice Mail subscribers in your own area)
9 - Save message
* - Cancel/Exit
0 - Help
# - Finish/Skip

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ATT

Great informative post Kin. I just Stuck this thread for you, so we can keep this information at the top of the page.

Thanks, Ellen. I just added some more, and thanks for the stick, lol

__________________
Work WAS killing my time...I'm back!!
Help spread the word on CellPhoneSignal, and promote this awesome community!
What I've dugg so far for CellPhoneSignal,
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


My opinions/views/comments are just that, MINE, no one else's, not T-Mobile's, or any other carrier, any of their dealers, or any manufacturers.
Other than that....Let's Rock!!

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
ATT

Just my .02

If you want to save time while accessing your voicemail, simply edit the voicemail entry in your phone to read as:

*86P<--2 second pause**** (the **** being your 4 digit password to access your voicemail)

The P will cause the cellphone to pause once it dials *86, then proceed to enter your 4 digit password after the 2 seconds has passed. Just a little tip I thought I would add!

__________________
Phones I've Owned On My Own Account:
Sidekick 3, LG VX10000, BlackBerry 8130, BlackBerry 8330, Samsung SPH-a640

Phones I've Owned Prior To Starting My Own Account:
Nokia (CellularOne), Motorola T720, Samsung SCH-a670, LG VX8100, LG VX9800, Motorola Q, LG VX8550

Thanks for your 2 cents VZWUser. I'm sure this tip will be very useful to the Verizon people that are out there.