CASE Statement, works but.....

My CASE Statement works fine like this:

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CASE

WHEN so.PhoneNum LIKE '999%' THEN 'Chester'

END AS Company,(Works!)
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But how can I get it to work checking more than 1 instance of PhoneNum?

This doesn't work:

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CASE

WHEN so.PhoneNum LIKE '999%' THEN 'City1'
WHEN so.PhoneNum LIKE '997%' THEN 'City2 '
WHEN so.PhoneNum LIKE '998%' THEN 'City3'

END AS Company,(Fails!)
================================================== ====

This fails with an out put of "NULL"

ThanksFound the solution - this works!

[Company] =
CASE
WHEN so.PhoneNum LIKE '999%' THEN 'Chester'
WHEN so.PhoneNum LIKE '998%' THEN 'Camden'
WHEN so.PhoneNum LIKE '997%' THEN 'Great Falls'
WHEN so.PhoneNum LIKE '803%' THEN 'Winnsboro'
END,