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Phone Directory 631-399 Detail

State Major City Time Zone
New York Deer Park Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
631-399 Mastic, NY Verizon New York Suffolk Landline 01/14/2000

Other Series For Prefixes

631-3990###
631-3991###
631-3992###
631-3993###
631-3994###
631-3995###
631-3996###
631-3997###
631-3998###
631-3999###