CBP filer code N3M · register as of May 1, 2026USDOT 3635576 · register as of Sep 4, 2026FMC organization 029331 · register as of Sep 1, 2026Freight brokerFreight forwarderCustoms broker
CBP filer code KP6 · register as of May 1, 2026USDOT 909397 · register as of Sep 4, 2026FMC organization 016780 · register as of Sep 1, 2026Freight brokerNVOCCFreight forwarder+1
CBP filer code AT1 · register as of May 1, 2026USDOT 2972434 · register as of Sep 4, 2026FMC organization 010933 · register as of Sep 1, 2026Freight forwarderSurface forwarderCustoms broker
CBP filer code N7M · register as of May 1, 2026FMC organization 025999 · register as of Sep 1, 2026FMC licence 025999 · register as of Sep 1, 2026NVOCCFreight forwarderCustoms broker
A customs broker files the paperwork that legally releases your container from CBP custody. You are not required to use one, but almost every importer does — an incorrect entry is your liability, not the broker's.