| Business | Phone |
| Shipping & Office Svc 858 3rd Ave, Chula Vista 91911 | (619) 425-2972 |
| Postal Annex+ 2220 Otay Lakes Rd # 502, Chula Vista 91915 | (619) 656-8484 |
| Postal Annex+ 263 Orange Ave, Chula Vista 91911 | (619) 426-4840 |
| Postal Connection 1392 E Palomar St, Chula Vista 91913 | (619) 656-6393 |