Carrier profile · USDOT 3239983 · Updated Jun 13, 2026
Portable Toilets LLC DBA Southern On-site
DBA SOUTHERN ON-SITE
12 power unitsLocal · 2 statesHATTIESBURG, MS50/100
AUTHORITY STATUS UNKNOWN
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 4985 OLD HIGHWAY 11 STE 2, HATTIESBURG, MS, 39402-6214
- Mailing address
- PO BOX 18798, HATTIESBURG, MS, 39404-8798
- Operation
- Interstate
Contact
- Phone
- (769) 223-6251
Registration
- Officers
- Sammie Jo Wilson · Mark C Shows
- USDOT / docket
- 3239983
- First registered
- Jan 31, 2019
- Last MCS-150
- Feb 24, 2026 · 100,000 mi (2025)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 7792129
Fleet (self-reported · MCS-150)
—CDL drivers
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.