Thank you. How would I repeat this conditional format for
a series of cells (D7 to D500)?

-----Original Message-----
Use conditional formatting with a formula of
=ISNUMBER(MATCH($D$7,$A:$A,0))

and select a colour for the format.

If that source sheet is a different sheet to D7, then
you will need to give
the cells in column A a workbook name and refer to that
in the formula.


--

HTH

RP
(remove nothere from the email address if mailing direct)


"Fred Timmons"
wrote in message
...
I am managing a do-not-call list with a large contact
database. How do I establish a poitive/negative match
from source data.
eg. Cell D7 value is: 212-555-1212.
The source worksheet has a list of all phone numbers in
Column A.
So, if the value of Cell D7 matches a value in source
worksheet Column A, I can conditionally format it.
Thanks in advance.


.