For my friends in:
Holland, Borculo, Grand Haven (incl Ferrysburg and SL, of course), Hamilton, Saugatuck, Zeeland, Drenthe and Allendale.
616-928-1120
That's a local number to reach my vonage line from the area. Should be local from any landline in those cities and ratecenters.
http://www.telcodata.us/telco/telco.jsp?npa=616&exchange=928