There's a moment every freight broker knows. A load is moving, check-ins have been happening, and then — nothing. The driver doesn't answer. The dispatcher number goes to voicemail. The tracking link stopped updating two hours ago. The delivery window is in six hours.
How you handle the next 30 minutes will determine whether you lose the load or lose the account.
Those are different outcomes. One is a bad day. The other is avoidable.
Know What You're Dealing With Before You Escalate
The four most common reasons a carrier goes dark, roughly in order of frequency:
Dead phone or lost signal. This is the most common cause by a significant margin. Rural corridors, mountain passes, parts of Mexico and rural Canada, and cell dead zones along major freight corridors produce dropped signals constantly. A driver who was checking in hourly is now in a valley in West Texas with no bars and no awareness that you're escalating. This resolves itself.
Asleep at a truck stop. Drivers pull over, put their phone on silent, and sleep through your calls. This is less of a crisis than it feels like — the load is stationary and safe. But it's also fixable faster than you might think: a text, an email to the dispatch system, and a call to the carrier's main line will usually surface someone.
Mechanical breakdown. The driver is dealing with a real problem on the side of the road and calling you is not their first priority. This is a legitimate service failure and needs active management — backup sourcing and shipper communication kick in the same way regardless.
Cargo theft or load abandonment. The least common cause but the one with catastrophic consequences. The indicators are different: truck hasn't moved in four or more hours, carrier owner is also not answering, the load is high-value or easily liquidated, and your tracking shows the last known location at an unusual stop. This escalation path diverges from the others and involves law enforcement.
The cause matters because it tells you how urgent the backup sourcing step is. Everything else in the first 30 minutes is the same regardless.
The 30-Minute Playbook
Minutes 0 to 10: Exhaust Every Contact Method
Start with the driver's direct cell number from your carrier packet. If no answer, send a text immediately — many drivers can't take a call while moving but will see a text at the next stop or light. Then call the dispatcher number. Then the carrier's main office line. Then any emergency contact in the carrier packet.
Do not call once, wait five minutes, and assume silence means something catastrophic. Run through all numbers in sequence within the first 10 minutes. The majority of silent carrier situations resolve here — a dead battery, a driver who missed a check-in, a dispatcher who didn't get the memo. The calls cost you nothing. Waiting costs you time you don't have.
One note from the other side of this dynamic: experienced carriers and drivers have made a point publicly about excessive check-in calls from brokers who have GPS tracking on the load and are calling anyway just to have called. That relationship capital matters. When you make a real escalation call — the kind where you actually need an answer — you want to be the broker whose calls the driver actually picks up. The broker who calls six times to confirm a location that's visible on the tracking app doesn't get that benefit of the doubt.
Minutes 5 to 15: Pull Every Available Location Signal
While you're making calls, run every tracking option simultaneously.
Check your macropoint or FourKites tracking link. Pull the last-known position from the carrier's ELD provider if you have portal access. Check the Samsara, Motive, or similar app link if the carrier shared one. Review your TMS for the last confirmed check-in time and location.
Last known position tells you whether you're dealing with a moving truck that went quiet or a stationary truck that hasn't moved. A truck that's been stationary at a truck stop for three hours while the driver sleeps is a different problem than a truck that was moving 45 minutes ago, stopped at an unusual location, and no one is answering. The stationary truck is almost always recoverable. The unusual stop that matches no logical route point warrants faster escalation.
Minute 15: Call the Shipper
This is the step brokers delay. Don't.
Call your contact at the shipping company before they call you. The script is simple: "We're actively working to confirm current driver location — we haven't had a check-in in [time] and we're on it. I wanted to make sure you had visibility before any delivery window concerns came up. I'll update you by [specific time]."
This is not admitting a crisis. This is professional operations. The shippers who lose faith in brokers are not the ones who received a proactive heads-up when something went sideways. They're the ones who called their broker asking for a status update and discovered the broker didn't have one either. That moment — finding out your broker was sitting on a problem they knew about — is an account-ending conversation.
Proactive communication on a bad day builds more trust than smooth operations on a good one. This is the counterintuitive truth about freight operations: the best thing that can happen to a shipper relationship is a crisis you handled well in front of them.
Minutes 15 to 20: Call the Receiver
The consignee needs to know there may be a delay. They have dock schedules, labor commitments, and downstream production or distribution plans built around the expected delivery. A call now — "We're managing a carrier communication issue and wanted to give you advance notice in case we need to adjust the delivery window" — gives them time to adapt. Most receivers are reasonable when they have warning. None of them are reasonable when a load simply doesn't show up at the scheduled time with no notice.
A missed appointment with advance communication is a recoverable situation. A missed appointment that surprises the receiver is a detention dispute, a missed appointment fee, and a conversation with your shipper about why they weren't warned.
Minutes 20 to 25: Escalate to the Carrier Owner
If the dispatcher hasn't responded, go to the carrier owner's direct line if you have it. If you don't, pull the principal owner's information from the FMCSA SAFER record — it's listed there for most carriers. Send a clear, time-stamped email to the carrier's address: "URGENT — Load [number] — Need immediate contact. Driver unreachable for [time]. Please call [your number] immediately."
For Mexico and Canada cross-border loads, this step may involve calling a contact in a different time zone or in a country where cell service is less consistent. Have those alternate contacts in your carrier packet before the load moves.
Minute 30: Start Sourcing Backup
If you've hit 30 minutes of no response across all channels, assume you will need a backup carrier and start making calls now. You are not committing to anything — you're getting options in hand. If the primary carrier surfaces in the next hour, you stand down. If they don't, you need to know your options before the delivery window closes.
For cross-border loads, backup sourcing is harder. Not every carrier can pick up a Mexico load in Monterrey or a Canada load in Ontario on a few hours' notice. Know your carrier network well enough to have two or three names you can call in each corridor for emergency coverage. That list should be built before you ever need it.
Throughout: Document Everything in Real Time
Every call made, every text sent, every location update pulled, every conversation with the shipper and the receiver — log it with a timestamp as it happens in your TMS. Claims adjusters and attorneys need timestamps, phone numbers, and what was said. "I think I called around noon" is not documentation. Time-stamped TMS entries with the specific numbers called and the responses received are.
Your documentation is also your defense if a cargo claim follows. Brokers who can demonstrate they followed a systematic escalation process, notified the shipper proactively, and took steps to source backup coverage are in a fundamentally different legal and commercial position than brokers who waited two hours hoping the carrier would resurface.
The 4-Hour Cargo Theft Window
If the evidence points toward theft — truck stationary for four or more hours at an unusual location, carrier owner unreachable, load is high-value electronics, pharmaceuticals, consumer goods, or anything easily liquidated — the response window is compressed.
Contact law enforcement first. Then contact the National Insurance Crime Bureau (nicb.org), which coordinates cargo theft response and can engage the National Cargo Theft Task Force. Recovery organizations need early notification to have any realistic chance of intercepting a stolen load. After 24 hours, freight has typically been dispersed, transferred, or moved across state lines. After 48 hours, recovery probability drops to near zero on most load types.
Also notify your cargo insurance carrier immediately. Most cargo insurance policies have specific notification time requirements for theft events. Missing that window can complicate or void the claim.
Broker Liability: What Your Position Is When a Load Goes Dark
Freight brokers are not carriers. But courts and cargo insurance adjusters look at broker conduct during a load-in-transit problem when determining liability allocation. The standard applied is reasonable care — did you follow a reasonable escalation protocol, did you notify the shipper proactively, did you take steps to mitigate the damage?
A broker who can produce time-stamped documentation showing they followed each of these steps is in a defensible position. A broker who sat on the problem for two hours is not.
Make sure your broker-carrier agreement specifies check-in requirements, communication obligations, and that the carrier is liable for the safety and security of the freight in transit. Those provisions matter if you end up in a dispute over a cargo claim.
Frequently Asked Questions
What should a freight broker do when a carrier stops responding during a load?
Exhaust all contact methods — driver cell, text, dispatcher, main office, emergency contacts — within the first 10 minutes. Pull all available tracking data simultaneously. By minute 15, call the shipper proactively before they notice the problem. By minute 30, if there's still no contact, start sourcing a backup carrier. Document every step with timestamps in your TMS as you go.
What are the most common reasons a carrier goes silent during transit?
In rough order of frequency: dead phone battery or lost cell service (very common in rural and cross-border corridors), driver asleep at a truck stop without a check-in reminder, mechanical breakdown where the driver is dealing with the problem first, and cargo theft or load abandonment. The first 30 minutes of your playbook are the same regardless of cause. After that, the paths diverge based on what you learn.
What is the 4-hour cargo theft response window that freight brokers talk about?
Cargo theft recovery statistics show that the probability of recovering a stolen load drops dramatically after 24 hours and approaches zero after 48 hours. The first four hours are when recovery organizations — the National Insurance Crime Bureau, the National Cargo Theft Task Force, and law enforcement — have the best chance of intercepting a load before it's been dispersed or moved across state lines. Early notification is not a formality. It's the difference between a recovered load and a total cargo claim.
What is a freight broker's legal liability when a carrier goes missing with a load?
Brokers are not carriers and do not have carrier liability for freight in transit, but their conduct during a transit problem affects their exposure in cargo claims. Brokers who can demonstrate they followed reasonable escalation procedures, notified the shipper proactively, and documented their actions are in a much better position than brokers who cannot show they took action. Your broker-carrier agreement language and cargo insurance policy terms govern the specifics — both should be reviewed before you need them in an emergency.