Post office locations in 00656
| Post Office | Address | Phone | Hours |
| GUAYANILLA | 285 CALLE LUIS MUNOZ RIVERA GUAYANILLA, PR 00656 - 9998 | 787-835-0320 | Mon-Fri 7:30am - 4:00pm Sat 7:30am - 12:00pm Sun Closed |
| Post Office | Address | Phone | Hours |
| GUAYANILLA | 285 CALLE LUIS MUNOZ RIVERA GUAYANILLA, PR 00656 - 9998 | 787-835-0320 | Mon-Fri 7:30am - 4:00pm Sat 7:30am - 12:00pm Sun Closed |