Area Code 787-237 located in GUAYNABO, GUAYNABO, PR, more detail is as below. Place NPA (Numbering Plan Area) : 787 NXX (Local Number Prefix) : 237 City : GUAYNABO County : GUAYNABO State : PR (Puerto Rico) NXX Use Type : Wireless NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 72061 LATA (Local Access Transport Area) : 820 Rate Center : GUAYNABO ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 00966 Other Information NPANXX : 787237 Switch CLLI (Common Language Location Identifier) : GUYNPRXBCM0 MSA CBSA (Core Based Statistical Area) : San Juan-Caguas-Guaynabo, PR MSA CBSA Code (Core Based Statistical Area) : 41980 Time Zone : Atlantic (GMT -04:00) Observes Daylight Saving Time : No Company : NEW CINGULAR WIRELESS PCS, LLC - GA OCN (Operating Company Number) : 6214 Coverage Area Name : GUAYNABO Latitude : 18.3731 Longitude : -66.1066 ‹ previous : 787-236 next › : 787-237 Telephone Number List 787-237-0000 ~ 787-237-9999