Carrier profile · USDOT 1589351 · Updated Jun 13, 2026

City Builders Service Inc

2 power unitsROCK HILL, SC50/100
AUTHORITY STATUS UNKNOWNUNDELIVERABLE ADDRESS

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.

Undeliverable physical address on the FMCSA record

USPS flagged this carrier's filed physical address as undeliverable — a common chameleon / shell signal. Confirm a working address before tendering.

Location

Mailing address
PO BOX 2708 CRS, ROCK HILL, SC, 29732
Operation
Interstate

Contact

Fax
(803) 327-5448
Web domain
comporium.net

Registration

Officer
Kathy Hargett
USDOT / docket
1589351
First registered
Dec 27, 2006
Last MCS-150
Dec 5, 2014 · 2,500 mi (2014)
FMCSA safety rating
Not rated
Recordable crash rate
0.00
D-U-N-S

Fleet (self-reported · MCS-150)

2Power units
1Drivers
CDL drivers
2,500Annual mileage

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.