| Business | Phone |
| Us Post Office 2900 S Pacific Ave, San Pedro 90731 | (310) 000-1111 |
| Us Post Office 300 Ferry St, San Pedro 90731 | (310) 000-1111 |
| Us Post Office 839 S Beacon St, San Pedro 90731 | (310) 000-1111 |
| Us Post Office 29649 S Western Ave, San Pedro 90732 | (310) 000-1111 |