ALAMO MAIL SERVICE INC

USDOT 356803 Inactive Interstate

Trust Score

out of 100

REVIEW

Needs manual review

SAN ANTONIO, TX · Last verified October 15, 2026 · FMCSA public records

Operations

Power units

Trucks + tractors

Drivers

1.13 per truck

Authority age

37 years

Since 1989

Safety rating

Unrated

What ALAMO MAIL SERVICE INC’s FMCSA record shows

Each field from the public registration, and what it means when you’re vetting this carrier.

USDOT number 356803: The USDOT number is FMCSA's permanent ID for this company. It never changes, even when the business renames, moves, or changes owners, so it's the most reliable way to identify ALAMO MAIL SERVICE INC.
MC number None on file: No MC number is on file. That's normal for private fleets hauling their own goods and for intrastate-only carriers, but a company with no MC number can't legally haul regulated interstate freight for hire.
Operating status Inactive: FMCSA lists this USDOT number as inactive. Inactive carriers shouldn't be dispatched; confirm the company has reactivated before booking a load.
Operation type Interstate: Interstate carriers can haul freight across state lines and fall under the full federal safety rules (FMCSRs).
Fleet size 53 power units, 60 drivers: ALAMO MAIL SERVICE INC self-reports 53 power units (trucks and tractors), which makes it a mid-size fleet. Fleet counts come from the carrier's own MCS-150 filing and aren't independently audited.
Last MCS-150 update Mar 20, 2018: The MCS-150 is the registration form where carriers report their address, fleet size, and operations. ALAMO MAIL SERVICE INC last filed it on Mar 20, 2018. That's well past FMCSA's two-year update requirement. Treat the company details on this page as possibly out of date.

Safety profile

FMCSA BASIC percentiles, inspection history, and out-of-service rates.

Full safety report

All 7 FMCSA BASIC percentiles, recent inspection records, vehicle & driver out-of-service rates — free with any account.

Crash history

State-reportable crashes, severity breakdown, and time-decayed analysis.

Crash history

Individual crash records with date, severity (fatal / injury / tow-away), and fleet-normalized rate.

Insurance & compliance

Active policy coverage, insurance carrier, effective dates, and historical gaps.

Insurance details

BI&PD coverage, cargo insurance, insurance carrier name, effective dates — a critical pre-booking check.

Authority & cross-reference

Authority revocation history and chameleon carrier detection across 4.4M records.

Authority & cross-reference

Every authority grant, revocation, and reinstatement — plus chameleon flags from address / officer / phone matches.

Frequently asked questions about ALAMO MAIL SERVICE INC

Common questions about this carrier, answered from FMCSA public records.

Is ALAMO MAIL SERVICE INC a legitimate motor carrier?

ALAMO MAIL SERVICE INC is registered with FMCSA under USDOT number 356803. Operating authority status is currently Inactive. Carrier90's trust score of 50/100 yields a REVIEW verdict based on safety, insurance, authority, and crash data.

What is ALAMO MAIL SERVICE INC's safety score?

Carrier90 scores ALAMO MAIL SERVICE INC at 50 out of 100 with a REVIEW verdict. The score combines FMCSA BASIC percentiles, crash history, insurance status, operating authority, and chameleon carrier detection signals.

Where is ALAMO MAIL SERVICE INC based?

ALAMO MAIL SERVICE INC lists its physical address in SAN ANTONIO, TX in FMCSA records. The physical state and city fields are provided by the carrier on their MCS-150 form.

Is USDOT 356803 active?

USDOT 356803 (ALAMO MAIL SERVICE INC) operating authority status is currently Inactive. Last verified by Carrier90 on October 15, 2026. Data is sourced from live FMCSA federal records.

How many trucks does ALAMO MAIL SERVICE INC operate?

ALAMO MAIL SERVICE INC reports 53 power units and employs 60 drivers to FMCSA. These figures come from the carrier's most recent MCS-150 filing.

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