Carrier profile · USDOT 343395 · Updated Jun 13, 2026
ISSC INC
DBA SEAPORT STEEL CO
26 power unitsavg 10.5 yrRegional · 4 statesSEATTLE, WA86/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORY
Equipment
Haulable capacity (power units only — trailers are towed context), equipment mix, and the VIN-decoded unit roster. Click any VIN to trace that unit across every carrier that has run it.
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 26
- Observed power (24 mo)
- 23
- Trailers (towed)
- 28
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2026
Newest model yr
1997
Oldest model yr
45.1%
VINs decoded
Unit roster· VIN-decoded from inspections · NHTSA vPIC
| VIN | Type | Year | Make | Model | Insp. | Last seen |
|---|---|---|---|---|---|---|
| 1XKZPP9X1PJ239805 | Truck-Tractor | 2023 | KENWORTH | T880 | 6 | Apr 13, 2026 |
| 1XKZPP9X6PJ253845 | Truck-Tractor | 2023 | KENWORTH | T880 | 5 | May 1, 2026 |
| 5DN1153438B000773 | Trailer | 2008 | WESTERN TRAILER CO | Western Trailer Company | 4 | Jul 6, 2026 |
| 1XKZPP9X0PJ253856 | Truck-Tractor | 2023 | KENWORTH | T880 | 4 | Jun 17, 2026 |
| 1XKZPP9X1PJ253848 | Truck-Tractor | 2023 | KENWORTH | T880 | 4 | Jan 14, 2026 |
| 1XKZPP9X5PJ239807 | Truck-Tractor | 2023 | KENWORTH | T880 | 3 | Jul 6, 2026 |
| 1UYFS45328A339901 | Trailer | 2008 | UTILITY TRAILER MA | Utility Trailer Manufacturer | 3 | Jun 17, 2026 |
| 1GRDM84226M700917 | Trailer | 2006 | GREAT DANE TRAILER | Great Dane Trailers | 3 | May 5, 2026 |
| 1XKZPP9X3PJ253849 | Truck-Tractor | 2023 | KENWORTH | T880 | 3 | Feb 3, 2026 |
| 1TTF5330271083416 | Trailer | 2007 | TRANSCRAFT | Transcraft | 3 | Jan 7, 2026 |
| 1XKZPP9X9PJ253855 | Truck-Tractor | 2023 | KENWORTH | T880 | 2 | May 28, 2026 |
| 1XKZPP9XXPJ253847 | Power unit | 2023 | KENWORTH | — | 2 | May 5, 2026 |
| 2NK3HM6X5PM258642 | Power unit | 2023 | KENWORTH | — | 2 | Apr 27, 2026 |
| 5MAPA5340NH061776 | Trailer | 2022 | UNPUBLISHE | — | 2 | Mar 4, 2026 |
| 2NK3HM6X7PM258643 | Power unit | 2023 | KENWORTH | — | 2 | Mar 2, 2026 |
| 1E9A422F481408187 | Trailer | 2008 | EFFICIENT HAULING | — | 2 | Jan 26, 2026 |
| 1GRDM84236M700912 | Trailer | 2006 | GREAT DANE TRAILER | Great Dane Trailers | 2 | Nov 4, 2025 |
| 1TTF4520361078336 | Trailer | 2006 | TRANSCRAFT | — | 2 | Feb 12, 2025 |
| 1H2P04529LW022703 | Trailer | 2020 | UNPUBLISHE | — | 1 | May 28, 2026 |
| 1XKZPP9XXPJ253850 | Truck-Tractor | 2023 | KENWORTH | T880 | 1 | Apr 21, 2026 |
| 1UYFS2489TA864044 | Trailer | 2026 | UTILITY TR | — | 1 | Apr 21, 2026 |
| 2J9R3A1H6VK001169 | Trailer | 1997 | UNPUBLISHE | — | 1 | Apr 13, 2026 |
| 1XKZP4EX8PJ171300 | Power unit | 2023 | KENWORTH | — | 1 | Mar 19, 2026 |
| 1TTF4220X51075110 | Trailer | 2005 | UNKNOWN | — | 1 | Mar 19, 2026 |
| 1XKZPP9XXPJ239804 | Power unit | 2023 | KENWORTH | — | 1 | Feb 5, 2026 |
| 1RNF53A46ER031073 | Trailer | 2014 | REITNOUER | — | 1 | Feb 5, 2026 |
| 1E9A422F981408184 | Trailer | 2008 | UNPUBLISHE | — | 1 | Feb 3, 2026 |
| 1XKZPP9X8PJ253846 | Power unit | 2023 | KENWORTH | — | 1 | Dec 17, 2025 |
| 2XK5AJ8X5PM258607 | Power unit | 2023 | KENWORTH | — | 1 | Nov 4, 2025 |
| 1GRDM84276M700914 | Trailer | 2006 | GREAT DANE TRAILER | Great Dane Trailers | 1 | Oct 8, 2025 |
| 3EUDB1628R1090509 | Trailer | 2024 | UNPUBLISHE | — | 1 | Sep 17, 2025 |
| 1XKZPP9X1PJ253851 | Truck-Tractor | 2023 | KENWORTH | T880 | 1 | Jul 24, 2025 |
| 5DN1153466B000764 | Trailer | 2006 | UNPUBLISHE | — | 1 | Jun 10, 2025 |
| 1RNF53A48PR058679 | Trailer | 2023 | REITNOUER | — | 1 | Jun 8, 2025 |
| 1JJF533F51S757339 | Trailer | 2001 | FRUEHUAF | Fruehuaf | 1 | May 7, 2025 |
| 1FUJGHDV3CSBA5040 | Power unit | 2012 | FRHT | — | 1 | Apr 15, 2025 |
| 1TTF48208W1055491 | Trailer | 1998 | TRAO | — | 1 | Apr 15, 2025 |
| 1H5P04023BN062502 | Trailer | 2011 | HOBBS TRAI | — | 1 | Mar 27, 2025 |
| 1H2V05324PE021535 | Trailer | 2023 | UNPUBLISHE | — | 1 | Feb 12, 2025 |
| 3WKZP40X5RF355544 | Truck-Tractor | 2024 | KENWORTH | T880 | 1 | Feb 6, 2025 |
| 1UYFS45348A339902 | Trailer | 2008 | UTILITY TRAILER MA | Utility Trailer Manufacturer | 1 | Feb 3, 2025 |
| 2BRA16K45XK000077 | Trailer | 1999 | UNPUBLISHE | — | 1 | Nov 25, 2024 |
| 1XKZDP9X1PJ253521 | Power unit | 2023 | KENWORTH | — | 1 | Nov 4, 2024 |
| 5MASA5329HA038339 | Trailer | 2017 | UNKNOWN | — | 1 | Oct 2, 2024 |
| 1XKZPP9X3PJ253852 | Power unit | 2023 | KENWORTH | — | 1 | Oct 2, 2024 |
| 1XKYP40X9HJ169818 | Truck-Tractor | 2017 | KENWORTH | T680 | 1 | Oct 2, 2024 |
| 13N1422C6G1540383 | Trailer | 2016 | FONTAINE T | — | 1 | Oct 2, 2024 |
| 1XKYP40X2HJ169823 | Power unit | 2017 | KENWORTH | — | 1 | Sep 12, 2024 |
| 1TTE5330691086334 | Trailer | 2009 | TRANSCRAFT | Transcraft | 1 | Sep 12, 2024 |
| 1RNF48A205R012016 | Trailer | 2005 | REITNOUER INC | Reitnouer Inc | 1 | Sep 11, 2024 |
| 3AKJGEDR3JSJV0963 | Truck-Tractor | 2018 | FREIGHTLINER | Cascadia | 1 | Sep 11, 2024 |
Showing 51 · most-inspected first.