Pulling FMCSA records…

Alfonso Diaz Transport Service LLC (USDOT 4430087)

3 cautions found.

Docket (MC) number
MC1743612
Operating authority
Common carrier authority: active.
Insurance on file
Liability (BIPD) insurance on file for $750,000.
Safety rating
No published safety rating
Fleet on file
3 power units, 3 drivers
Operation type
Interstate
Physical address
2909 W ST JOHN ST, TAMPA, FL 33607
MCS-150 last filed
2025-10

Findings

  • Vehicle OOS rate above national average (Caution): 61.54% vehicle OOS over 13 inspections vs. national average 22.73%
  • Driver OOS rate above national average (Caution): 47.06% driver OOS over 17 inspections vs. national average 6.11% — typically reflects HOS or CDL-compliance issues
  • 2 BASICs at the FMCSA intervention threshold (Caution): Driver fitness and Vehicle maintenance rank among similar carriers (higher = worse). fleetfax peer estimate, not official CSA scores.

Frequently asked questions

What carrier is USDOT 4430087?

USDOT 4430087 is Alfonso Diaz Transport Service LLC, an interstate motor carrier.

What carrier is MC 1743612?

MC 1743612 is the docket number of Alfonso Diaz Transport Service LLC, USDOT 4430087.

What is Alfonso Diaz Transport Service LLC's MC number?

Alfonso Diaz Transport Service LLC's docket number is MC 1743612. Its USDOT number is 4430087.

Is Alfonso Diaz Transport Service LLC currently authorized to operate?

Common carrier authority: active. Source: FMCSA registration and licensing records.

Does Alfonso Diaz Transport Service LLC have insurance on file with FMCSA?

Liability (BIPD) insurance on file for $750,000.

Who provides Alfonso Diaz Transport Service LLC's insurance?

Alfonso Diaz Transport Service LLC's liability insurance is filed with FMCSA by Progressive Express Insurance Company.

What is Alfonso Diaz Transport Service LLC's safety record?

In the last 24 months, FMCSA records show 13 roadside inspections with a 61.5% vehicle out-of-service rate (national average 22.7%) and 0 recordable crashes.

What is Alfonso Diaz Transport Service LLC's CSA score?

FMCSA does not publish a single CSA score for carriers. Alfonso Diaz Transport Service LLC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.

What is Alfonso Diaz Transport Service LLC's FMCSA safety rating?

Alfonso Diaz Transport Service LLC has no published FMCSA safety rating. Most US carriers have never received a rating review, so an unrated carrier is the common case, not a warning sign by itself.

View the full fleetfax report for Alfonso Diaz Transport Service LLC

Reconstructed from cached and fleetfax-ingested FMCSA public records (live FMCSA was unavailable) — may be out of date; verify current status on FMCSA SAFER. fleetfax surfaces the facts; brokers make the judgment.