| Business | Phone |
| 24 Hour Mail Box 1253 Broadway, El Cajon 92021 | (619) 440-0021 |
| Aaa Mail Depot 1163 Broadway, El Cajon 92021 | (619) 588-9115 |
| Mail Plus 1464 Graves Ave # 107, El Cajon 92021 | (619) 447-7544 |
| Mail Store 864 N 2nd St, El Cajon 92021 | (619) 442-9851 |