You got a shipping notification with an ACI tracking number and now you are staring at a blank results page, wondering which website to use and whether your package is even moving.
Track Your Order
It is a common problem. There are three separate companies that use the ACI name in logistics, each with its own tracking portal and number format. Typing the wrong one into a search engine wastes time and causes unnecessary stress.
This guide cuts through the confusion. You will learn exactly which ACI company is handling your shipment, how to read your tracking number, what each status message means, and what to do if tracking stops updating. Everything in one place.
Three Companies, One Name: Which ACI Is Handling Your Shipment?
Before you can track anything, you need to identify which ACI company is involved. Here is a quick way to figure it out.
| Company | What They Do | Who Uses Them | Tracking Portal |
| ACI Logistix | US parcel consolidator, injects into USPS network | E-commerce merchants, online shoppers | tracking.acilogistix.com |
| ACI Express (ACI Logistics Co., Ltd.) | Korea-based global courier and freight forwarder | Cross-border e-commerce, Asia-Pacific shippers | aciexpress.net |
| ACI Motor Freight | Regional LTL trucking carrier | Business freight shippers in the Midwest and Southeast | acimotorfreight.com |
If you ordered something from an online store and received a tracking number starting with ACI or a long numeric code, you are almost certainly dealing with ACI Logistix. If you ordered from a Korean marketplace or Asia-Pacific seller, it is likely ACI Express. If you are a business tracking a pallet shipment, it is probably ACI Motor Freight.
ACI Logistix Tracking: Step-by-Step
ACI Logistix is the most commonly searched of the three. The company has operated in US parcel logistics for over five decades and today processes millions of small parcels weekly for e-commerce brands. It collects packages from merchants, presorts them, and injects them directly into the USPS last-mile network, which is why your package often transitions to USPS near the end of its journey.
How to Read Your ACI Logistix Tracking Number
ACI Logistix uses two tracking number formats:
- ACI + 31 digits (example: ACI1234567890123456789012345678901)
- A standalone 26-digit numeric code with no prefix
How to Track an ACI Logistix Package
- Open tracking.acilogistix.com in your browser.
- Paste your tracking number into the search field exactly as it appears in your shipping email.
- Click Search.
- Review the status timeline. Each row shows a scan event with date, time, location, and milestone description.
- If your parcel is close to delivery, the final scan will show a USPS injection event, meaning it has been handed to your local post office.
New shipping labels can take up to eight hours to appear in the ACI Logistix system. If you see no results immediately after receiving your confirmation email, wait until the next business day before concluding there is a problem.
What Each ACI Logistix Tracking Status Means
| Status | What It Means |
| Label Created | The merchant has generated a shipping label. ACI has not yet physically received the parcel. |
| Picked Up | ACI has collected the parcel from the merchant or fulfillment center. |
| Arrived at ACI Hub | The parcel is at an ACI sorting facility being processed and presorted. |
| Departed ACI Hub | The parcel has left the ACI hub and is heading toward the USPS injection point. |
| Injected into USPS Network | ACI has handed the parcel directly to a USPS facility. Tracking transitions here. |
| In Transit (USPS) | The parcel is moving through the USPS network toward the destination ZIP. |
| Out for Delivery | Your local USPS carrier has the parcel on their route today. |
| Delivered | Delivery confirmed. The timestamp and location are recorded. |
| Exception / Delivery Attempt | Something prevented delivery. Check for a notice and reschedule if needed. |
ACI Logistix Delivery Times by Service Tier
| Service Tier | Typical Transit Time | Example Route |
| Express | 2 to 3 business days | Los Angeles to Phoenix: 2 days |
| Standard | 3 to 5 business days | New York to Boston: 3 days |
| Economy | 5 to 8 business days | Chicago to rural Idaho: 8 days |
| International | Add 3 to 7 days | Customs and long-haul before USPS handoff |
ACI Express Tracking: Step-by-Step
ACI Express, formally ACI Logistics Co., Ltd., is a Korean company founded in 2007. It started as a specialist in cross-border express between Korea and China and has since grown into a full global logistics provider covering international express, air and ocean freight, and customs clearance.
The company holds IATA and AEO certifications and operates branches across major Asian cities including Beijing, Shanghai, Hong Kong, Singapore, Ho Chi Minh City, and Bangkok.
How to Track an ACI Express Shipment
- Go to aciexpress.net.
- Find the Track and Trace section on the homepage.
- Enter your ACI Express tracking number in the input field.
- Click Search or Track to view your shipment status, location history, and estimated delivery date.
You can also use 17TRACK.net and select ACI Express as the carrier if the system does not auto-detect it. Third-party platforms like Synctrack support ACI Express tracking numbers for Shopify merchants who want to embed tracking directly in their order confirmation pages.
ACI Express Contact Information
| Contact Method | Details |
| Phone | +82-2-2663-3300 |
| cs@aciexpress.net | |
| Headquarters | 32-13 Jeonho-daero 75-gil, Gangseo-gu, Seoul, South Korea |
| Website | aciexpress.net |
ACI Motor Freight Tracking: Step-by-Step
ACI Motor Freight is a regional less-than-truckload (LTL) carrier serving commercial shippers. Unlike parcel carriers, ACI Motor Freight moves palletized freight and requires a PRO number or Load Number alongside verification data for security reasons.
What You Need Before You Track
- Your ACI Motor Freight PRO Number or Load Number (do not include the prefix BL in the number field).
- Your phone number on file.
- One verification item: your ACI Motor Freight Customer Number, the destination ZIP code, or your PO Number.
How to Track an ACI Motor Freight Shipment
- Go to acimotorfreight.com/tracking.
- Enter your PRO Number or Load Number in the designated field. Use the format shown as an example on the page (for example: 000123456).
- Enter your registered phone number.
- Provide one of the three verification items: Customer Number, destination ZIP, or PO Number.
- Submit the form to retrieve your freight status.
ACI Tracking Not Updating? Here Is How to Fix It
A frozen tracking page is one of the most stressful experiences in online shopping. Before assuming something went wrong, work through this checklist.
Step 1: Check the Number Format
ACI Logistix numbers begin with ACI or are 26 digits long. Any other format likely belongs to a different carrier. If the number starts with 92 or 420, open usps.com. If it is a long alphanumeric string from a Korean seller, use aciexpress.net.
Step 2: Wait for the First Scan
A newly created label can take up to eight hours before it registers in the ACI Logistix system. If it has been less than one full business day since you received your shipping confirmation, wait before contacting support.
Step 3: Look for the USPS Handoff
ACI Logistix transfers parcels to USPS for final delivery. Once that injection event appears on your ACI tracking page, all further updates come from USPS. Switch to usps.com and enter the same tracking number if no further ACI updates appear.
Step 4: Check for Exceptions
An exception status means something interrupted normal delivery. Common causes include an incomplete delivery address, a failed delivery attempt, weather delays, and customs holds on international shipments. The exception note in the status timeline usually explains the specific issue.
Step 5: Contact Support
If no updates appear for more than three business days on a domestic shipment, or more than ten business days on an international one, it is time to open a support ticket.
| ACI Company | Support Contact |
| ACI Logistix | Web form at acilogistix.com/contact. Provide your name, email, tracking number, and order details. |
| ACI Express | cs@aciexpress.net or +82-2-2663-3300 |
| ACI Motor Freight | Contact your sales representative or the origin terminal directly. |
Third-Party Platforms That Support ACI Tracking
If you prefer a single dashboard for all your shipments, or if the official ACI portals are temporarily unavailable, these third-party tools support ACI tracking numbers.
| Platform | ACI Supported | Best For |
| 17TRACK (17track.net) | ACI Logistix and ACI Express | Consumers tracking multiple carriers in one place |
| AfterShip (aftership.com) | ACI Logistix | Shopify and e-commerce merchants |
| ParcelPanel | ACI Logistix | Shopify stores with branded tracking pages |
| Synctrack (synctrack.io) | ACI Express | Order tracking with ETA display |
| TrackingMore | ACI Logistix (registered users) | Businesses using the tracking API |
| ParcelsApp (parcelsapp.com) | ACI Logistix | International shipment visibility |
| 4Tracking (4tracking.net) | ACI Logistix | Free public tracker with detailed scan history |
Mistakes to Avoid When Tracking an ACI Shipment
- Tracking on the wrong portal: The three ACI companies use completely separate systems. An ACI Logistix tracking number will return nothing on the ACI Express website. Always confirm which company is shipping your order before opening a tracking portal.
- Ignoring the USPS handoff event: Many people contact ACI Logistix support thinking their parcel has gone missing when in reality it has already transitioned to USPS. The injection event on the ACI tracking page is the handoff signal. Track the rest of the journey on usps.com.
- Entering the number with extra spaces or characters: Copy the tracking number directly from the original shipping email rather than retyping it. Extra spaces or missing digits return no results.
- Expecting updates during weekends: ACI Logistix primarily operates on business days. A parcel picked up on Friday may not show a hub scan until Monday. This is normal and does not indicate a problem.
- Not recording the tracking number before the email expires: Promotional shipment confirmation emails sometimes expire or get filtered to spam. Save the tracking number to a notes app as soon as it arrives.
- Opening a lost parcel claim too early: For domestic US shipments, wait five business days after the last scan before filing a loss claim. For international or APO/FPO addresses, the waiting period is ten business days.
ACI Logistix for E-Commerce Businesses: What Sellers Should Know
If you run an online store and are considering ACI Logistix as your parcel carrier, here is what matters beyond the basic tracking steps.
How the Postal Consolidation Model Works
ACI Logistix collects parcels from merchants, sorts them at distribution hubs on both US coasts, and injects presorted batches directly into USPS processing facilities. By skipping the upstream USPS sorting centers, parcels reach local delivery carriers faster and at a lower cost per unit than standard retail USPS rates.
Geo-Tracked Confirmation
ACI uses geo-tracking at the product level, not just at the parcel level. Product movements are geo confirmed, meaning the system verifies the correct parcel is at the correct location at each scan point. This reduces misrouting errors that are common with basic scan-only systems.
Branded Tracking for Your Customers
Business accounts get access to a branded tracking portal where your customers see your store name and logo on the tracking page instead of a generic carrier interface. Combined with email and SMS notification triggers, this reduces customer service inquiries about order status by a significant margin.
Service Tiers
ACI Logistix offers three domestic service levels (Express, Standard, Economy) and international parcel forwarding. Merchants can assign different tiers to different products or order values, balancing speed against shipping cost on a per-order basis.
Also Read : AAA Cooper Tracking: How to Track Your Shipment
Frequently Asked Questions About ACI Tracking
What is the ACI tracking website?
It depends on the company. ACI Logistix uses tracking.acilogistix.com. ACI Express uses aciexpress.net. ACI Motor Freight uses acimotorfreight.com. If you are unsure which company has your shipment, check the shipping confirmation email from your seller.
What does an ACI Logistix tracking number look like?
ACI Logistix tracking numbers come in two formats: the letters ACI followed by 31 digits, or a standalone 26-digit numeric code. Numbers starting with 92 or 420 are USPS tracking numbers, meaning your parcel has already been transferred to the post office for final delivery.
Why is my ACI tracking not updating?
The most common reasons are: the label was just created and the system has not registered the first scan yet (allow up to eight hours), the parcel has been handed to USPS and you need to switch to usps.com for further updates, or a delivery exception is preventing forward movement. Check the exception notes in the status timeline.
How long does ACI Logistix take to deliver?
ACI Logistix Express typically delivers in two to three business days. Standard service runs three to five business days. Economy takes five to eight business days. International shipments add three to seven days for customs and long-haul transit before the USPS handoff.
Can I track my ACI shipment without creating an account?
Yes. The ACI Logistix tracking page at tracking.acilogistix.com is publicly accessible. You only need your tracking number. No account, login, or registration is required for basic shipment lookup. The same applies to ACI Express at aciexpress.net.
What does injected into USPS network mean on ACI tracking?
It means ACI Logistix has transferred your parcel directly to a USPS processing facility. From that point forward, USPS handles delivery. You can continue to track the same number on usps.com for last-mile updates including out for delivery and final delivery confirmation.
What should I do if my ACI Logistix package shows no movement for 3 days?
First confirm the parcel has not transitioned to USPS by checking your tracking number on usps.com. If no results appear on either platform after three full business days, visit acilogistix.com and use the contact form to open a support ticket. Include your tracking number, delivery ZIP code, and a screenshot of the last status shown.
Does ACI Logistix deliver on weekends?
ACI Logistix processes and sorts parcels primarily on business days. USPS handles final delivery and does operate on Saturdays for many service types. Sunday delivery through USPS is available in select areas for Priority Mail Express. Check your USPS tracking page once the handoff occurs for your specific delivery window.
Can I change the delivery address on an ACI Logistix shipment?
Address changes are only possible before ACI transfers the parcel to USPS. Submit a request through the contact form on acilogistix.com with your corrected address and tracking number as early as possible. Rerouting is not guaranteed and may add one to two days to the transit time.
Is ACI Logistix the same as USPS?
No. ACI Logistix is an independent parcel consolidator that uses USPS as its last-mile delivery partner. ACI handles pickup, sorting, and hub-to-hub transport. USPS handles delivery to the recipient’s door. They are separate companies, which is why your tracking number transitions between two systems near the end of the shipment.
