T-Mobile for Business T-Mobile for Business Search | Advanced Search | New Members | Coupons and Discounts | All Categories Communications >> TELECOMMUNICATIONS T-Mobile for Business 830 NE Holladay St Portland, OR 97232 | map | directions (458) 227-7919 Connect With Us Send a message to: T-Mobile for Business Your Name: Your Email: Subject: Message: (Date: 9/24/2023) If your business isn't here, contact us today to get listed!