The soundex code for Costello is C234.
Below are other surnames with the same soundex code. Click on a surname to see the listing for that name, or click the checkbox next to one or more names and then click the merge button to produce one listing including all the checked names.
Costillo

Records with the name Costello have been linked to records with the following names. Numbers indicate number of linked records.
Costello (30) Costelle (4) Costella (1) Costellow (1)

Users that have searched for Costello have included the following names in their searches. Numbers indicate number of searches.
Costello (437) Costillo (322) mcarthur (8)

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