| Business | Phone |
| Postal Annex+ 825 College Blvd # 102, Oceanside 92057 | (760) 414-1090 |
| Postnet Postal & Business Services 4225 Oceanside Blvd # M, Oceanside 92056 | (760) 758-2223 |
| Mail Biz 475 College Blvd # 6, Oceanside 92057 | (760) 724-1644 |
| Mail Depot 4140 Oceanside Blvd # 159, Oceanside 92056 | (760) 941-1419 |
| Mailboxes Of Oceanside 603 Seagaze Dr, Oceanside 92054 | (760) 722-4226 |