Area Code 551-230 located in HUDSON, HUDSON, NJ, more detail is as below. Place NPA (Numbering Plan Area) : 551 NXX (Local Number Prefix) : 230 City : HUDSON County : HUDSON State : NJ (New Jersey) NXX Intro Version : 6/8/2010 Rate Center : JERSEYCITY ZIP Code Count : 0 ZIP Code Frequency : 0 Other Information NPANXX : 551230 County Population : 0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 551-226 next › : 551-265 Telephone Number List 551-230-0000 ~ 551-230-9999