I'm not sure but maybe send a letter or fax to the IRS office or location that originally issued the CAF to you.

It is amazing what Professor Google can look up for you

https://www.irs.gov/tax-professionals/tax-pro-account#:~:text=verify%20your%20identity.-,CAF%20addre....

CAF Address

The address you enter in Tax Pro Account must match what’s on the CAF file at the IRS.

To update your CAF address, you can either:

• Sign and date a written notification of address change. Mail or fax it to the location where you filed the Form 2848 or Form 8821.
• Submit an authorization with Form 2848 or 8821. On the form, mark the checkbox and enter the new address, phone or fax number.

Address information can't be updated in Tax Pro Account at this time.

If you print your 2848's thru ProSeries, and your address is the updated address, then the next 2848 you file, just check that new address box in the CAF section.

Thank you. I called but they did not know the answer.  They provided me a fax number to use for CAF related inquiries.  I sent to that fax, so fingers crossed the change will be made.  Appreciate the help.

Thank you.  The CAF was issued in 2002 and that office is no longer in operation.  Appreciate the thought just the same.

Thank you.  This would work easily if I were filing a new 2848, but I do not have a need to do that.  The issue is I have an open 2848 which was filed using the old address.  I faxed a letter to the CAP office with the request to change the address, so we will see what happens.  Appreciate the suggestion!