International Customer Service Center 
The International Customer Service Center (ICSC) manages all cross border activities for all Mexican/US and Canadian/US gateways. All representatives are bilingual and can communicate in English or Spanish.
| Customer Call Center | Phone | Fax |
| Toll free in U.S. or Canada | 1-800-877-0531 | 1-800-877-0533 |
| Toll free from Mexico | 1-800-520-1771 | 1-800-520-1772 |
| Team Leader, Customer Service | 956-721-3220 |
Responsibilities include:
- Manage daily call volumes into International Customer Service Center (ICSC)
- Proactive customer calls
- Problem resolution
- Diversion and reconsignment requests
- New business desk/border industry desk
| Southbound Process Team | Phone | |
| Team Leader, Southbound Process | 956-721-3220 | icscmgmt@up.com |
Responsibilities include:
- Management of Despacho Previo and railcar clearing processes into Mexico
- Collection and remittance process
- Handle old cars not cleared into Mexico for resolution
Border Operation Support Phone E-Mail Team Leader, Border Relations 956-721-3225 amsteam@up.com Responsibilities include:
- Handle all processes with U.S., Mexican and Canadian customs needed to move cars to/from Mexico and Canada.
- Work Automated Manifest System (AMS) process with U.S. customs and U.S. brokers.
- Manage daily interchange activities with Mexican Railroads and CPRS railroad at Eastport, ID.
Other ICSC Phone Numbers Phone Director 956-721-3221