| Business | Phone |
| Us Post Office 110 University Blvd W, Silver Spring 20901 | (301) 754-1700 |
| Us Post Office 14030 Connecticut Ave, Silver Spring 20906 | (301) 871-4441 |
| Us Post Office 8045 Newell St, Silver Spring 20910 | (301) 495-4240 |
| Us Post Office 8455 Colesville Rd, Silver Spring 20910 | (301) 565-2177 |
| Us Post Office 8616 2nd Ave, Silver Spring 20910 | (301) 608-1300 |