Locations
| Masterbox Southern California | Masterbox Northern California | Masterbox Phoenix |
|---|---|---|
| 1620 S. Greenwood Ave. | 8311 Central Ave. | 5120 W Buckeye Rd. |
| Montebello, CA 90640 | Newark, CA 94560 | Phoenix AZ 85043 |
| Ph: 323-869-4100 | Ph: 510-896-4784 | Ph: 623-866-7130 |
| Fax: 323-869-4101 | Fax: 510-896-4783 | Fax: 623-866-7120 |
| Email: orders@masterbox.com | Email: mbncustomersvc@masterbox.com | Email: masterboxaz@masterbox.com |