Carrier profile · USDOT 61854 · MC-66561 · Updated Jun 13, 2026
Unda's Bus Service Inc
DBA INTERSTATE COACH
0 power unitsSTOUGHTON, MA50/100
CARRIER INACTIVEMC-66561 INACTIVERATED SATISFACTORYUNDELIVERABLE ADDRESS
Authority & Insurance
Active operating authority by type and the full insurance continuity timeline — insurer, policy, coverage, and any lapses — so you can confirm they can legally and adequately haul your load today.
Operating authority· 49 CFR · per type
Operating authority
- Common
- Inactive
- Contract
- None
- Broker
- None
Insurance & bonds
BIPD filing (census)Not recorded per census
Cargo filing (census)Not recorded per census
Surety bond (census)Not recorded per census
Insurance continuity· insurer · policy · lapses
$5M BIPD last filed ’05 · 6 insurers · 0 lapsesInsurer churn
beyond this history
1994200220102018now
Shorter eras are too brief to label at this scale — all 7 insurers are named in the list below.
This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.
All 7 insurer eras · dates, limits, renewals
| Insurer | Period | Limit | Renewals |
|---|---|---|---|
| FIREMEN'S INSURANCE CO. OF WASHINGTON DC | May 2003 → Apr 2005 | $5M | 1 |
| ONEBEACON AMERICA INSURANCE COMPANY | May 2001 → May 2003 | $5M | 1 |
| DIAMOND STATE INSURANCE COMPANY | May 2001 → Dec 2002 | $5M | 1 |
| ATHENA ASSURANCE COMPANY | May 2000 → Jul 2001 | $5M | 1 |
| ONEBEACON AMERICA INSURANCE COMPANY | May 1998 → May 2001 | $5M | 2 |
| UNITED STATES FIDELITY & GUARANTY CO. | Dec 1997 → May 1998 | $5M | 1 |
| HOLYOKE MUTUAL INSURANCE CO. IN SALEM | Jul 1994 → May 1998 | $5M | 1 |