SOUTHERN MAIL SERVICE INC
381 power units275 driversInterstateCONROE, TX
Data completeness & update times
Per official source. A failed read is not zero; “not yet imported” means the directory database has no stored copy yet — not “no authority” or “no insurance”.
| Section | Source | Source updated | Fetched | Status |
|---|---|---|---|---|
| Registration (Census) | az4n-8mr2 | 2026-10-19 PT | Oct 20, 06:19 AM PT | Read |
| Operating authority | inys-ebih | 2026-10-20 PT | Oct 20, 06:19 AM PT | Read |
| Authority history | yu5v-wbh6 | 2026-10-20 PT | Oct 20, 06:19 AM PT | Read |
| Insurance filings | c5y8-a4uz | 2026-10-20 PT | Oct 20, 06:19 AM PT | Read |
| Insurance history | 3uet-3z4i | 2026-10-20 PT | Oct 20, 06:19 AM PT | Not provided by official source |
| Insurance history (legacy)Content frozen by FMCSA on 2026-05-14 (portal metadata 2026-10-19 is a republish, not new data); gap-fill only | 6sqe-dvqs | 2026-05-14 | Oct 20, 06:19 AM PT | Stale (source > 90 days) |
| Inspections, 24 moDriver-level 128 · vehicle-level 90 | fx4q-ay7w | 2026-10-19 PT | Oct 20, 06:19 AM PT | Read |
| Crashes, 24 mo | aayw-vxb3 | 2026-10-20 PT | Oct 20, 06:19 AM PT | Read |
| Directory DB: authority copyLive official read above is used for the profile | carrier_authority | Not provided | Oct 19, 05:40 PM PT | Read |
| Directory DB: insurance copy | carrier_insurance | Not provided | Oct 7, 06:49 PM PT | Read |
VAX record reference score
Beta · trial v1Not an FMCSA rating, not a prediction and not a load decision. Thresholds are fixed and not yet calibrated.
Reference score (0–100)
93
Coverage — determinable weight, not a score
100/100
Crashes, 24 mo (shown only, not scored)
27
Safety
Source: SMS AB PassProperty (4y6x-dmck) · raw queryDataset updated 2026-10-13 07:05 UTCFetched 2026-10-20 13:19 UTC
128
128
OOS 1
88
OOS 18
S
2003-11-13
1 out-of-service of 128 inspections
18 out-of-service of 88 inspections
Rate = OOS inspections ÷ inspections, from the SMS summary; N/A when there are 0 inspections. The SMS summary has no monthly series; the monthly chart below is built from record-level inspections. Roadside inspections are a sample, not the whole fleet.
Roadside inspections · record level
Source: Vehicle Inspection File (fx4q-ay7w) · raw queryDataset updated 2026-10-19 14:35 UTCFetched 2026-10-20 13:19 UTC
Window: 2024-10-20 → 2026-10-20 (24 months ending on the fetch date). Records FMCSA has not yet uploaded are not included.
128
21
128
with driver OOS 1 · 0.8%
90
with vehicle OOS 17 · 18.9%
Inspections per month (count)
- Vehicle-level inspections (I, II, V, VI)
- Driver-level inspections (I, II, III, VI)
Out-of-service rate by month (%)
- Vehicle OOS rate
- Driver OOS rate (dashed)
- Hollow point = fewer than 5 eligible inspections
Computed from record-level inspections in fx4q-ay7w (window 2024-10-20 → 2026-10-20, fetched 2026-10-20 13:19 UTC). OOS rate = inspections with driver/vehicle OOS > 0 ÷ inspections at a driver/vehicle-examining level — not violation counts. Months with no eligible inspection leave a gap (not 0%). The SMS summary is not used to build history.
Driver-level = Levels I, II, III, VI; vehicle-level = Levels I, II, V, VI (FMCSA North American Standard levels). Level IV special studies are in neither. These record-level counts can differ from the SMS summary above, which uses its own snapshot and is left unchanged.
| Date | State | Level | Violations | OOS | Driver viol/OOS | Vehicle viol/OOS | ID |
|---|---|---|---|---|---|---|---|
| 2026-10-11 | TX | 2 | 0 | 0 | 0 / 0 | 0 / 0 | 89244359 |
| 2026-09-26 | TX | 2 | 1 | 0 | 0 / 0 | 1 / 0 | 89122284 |
| 2026-09-23 | TX | 2 | 1 | 0 | 0 / 0 | 1 / 0 | 89095075 |
| 2026-09-22 | TX | 2 | 1 | 0 | 1 / 0 | 0 / 0 | 89094312 |
| 2026-09-21 | LA | 3 | 0 | 0 | 0 / 0 | 0 / 0 | 89061465 |
Reported crashes
Source: Crash File (aayw-vxb3) · raw queryDataset updated 2026-10-20 12:52 UTCFetched 2026-10-20 13:19 UTC
Window: 2024-10-20 → 2026-10-20 (24 months ending on the fetch date). Records FMCSA has not yet uploaded are not included.
27
3
21
23
| Report date | City, state | Fatalities | Injuries | Tow-away | Federal recordable | ID |
|---|---|---|---|---|---|---|
| 2026-09-23 | DALLAS, TX | 0 | 1 | Yes | Yes | 5220503 |
| 2026-05-05 | AUSTIN, TX | 0 | 0 | Yes | Yes | 5150101 |
| 2026-03-14 | SAN ANTONIO, TX | 0 | 0 | Yes | Yes | 5124943 |
| 2026-02-19 | JARRELL, TX | 0 | 0 | Yes | Yes | 5130075 |
| 2026-02-10 | AUSTIN, TX | 1 | 0 | No | Yes | 5110344 |
Crash reports are listed as filed by states; they do not determine fault or preventability. VIN, plate and exact location are not shown.
Equipment
Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-19 18:21 UTCFetched 2026-10-20 13:19 UTC
381
361
0
| Equipment | Owned | Term leased | Trip leased |
|---|---|---|---|
| Straight trucks | 15 | 11 | — |
| Truck tractors | 322 | 13 | — |
| Trailers | 568 | — | — |
- Owned
- Term leased
- Trip leased
Tractors and trailers are drawn separately and never merged into power units. A row with any empty field shows no share.
MCS-150 self-reported counts. “—” means the source field is empty, not zero.
Vehicles observed in roadside inspections
Units: FMCSA Inspections Per Unit (wt8s-2hbx)Decoder: NHTSA vPICDataset updated 2026-10-20 10:55 UTCFetched 2026-10-20 13:19 UTCWindow 2024-10-20 → 2026-10-20
128 inspection(s) → 247 unit row(s) → 186 unique vehicle(s) by VIN. 2 row(s) without a valid 17-character VIN were skipped. Observed vehicles are not the full fleet and not proof of current ownership. Labels like PU-01 are anonymous; full VINs and plates are never shown.
Unique units
89
Decode coverage
100%
89/89
Average age
5.0 yr
n=89
Newest / oldest
2026 / 2016
Make
- VOLVO TRUCK79
- FREIGHTLINER4
- MACK3
- KENWORTH2
- PETERBILT1
Model year
- 20163
- 20174
- 20184
- 20197
- 202025
- 20218
- 202212
- 202314
- 202411
- 20261
Average age = 2026 − model year, over 89 unit(s) with a decoded year. Units without a decode are excluded from every share.
Unique units
90
Decode coverage
99%
89/90
Average age
11.1 yr
n=89
Newest / oldest
2026 / 1999
Make
- WABASH VANS26
- HYUNDAI TRANSLEAD TRAILERS23
- STOUGHTON TRAILERS12
- VANGUARD NATIONAL TRAILER CORPORATION (VNTC)10
- GREAT DANE TRAILERS7
- UTILITY TRAILER MANUFACTURER7
- MONON1
- PEERLESS1
Model year
- 19991
- 20001
- 20012
- 20031
- 20041
- 20055
- 20074
- 201211
- 201312
- 20145
- 20154
- 20167
- 20175
- 20189
- 20191
- 20202
- 20213
- 20222
- 20232
- 20241
- 20256
- 20264
Average age = 2026 − model year, over 89 unit(s) with a decoded year. Units without a decode are excluded from every share.
7 unit(s) could not be classified as power unit or trailer (not decoded).
| Unit | Make | Model | Year | Body class | Inspections | Last seen |
|---|---|---|---|---|---|---|
| TR-01 | WABASH VANS | Dry Van Duraplate | 2020 | Trailer | 1 | 2026-10-11 |
| PU-01 | VOLVO TRUCK | VNR | 2022 | Truck-Tractor | 1 | 2026-10-11 |
| PU-02 | VOLVO TRUCK | VNR | 2023 | Truck-Tractor | 1 | 2026-09-26 |
| TR-02 | VANGUARD NATIONAL TRAILER CORPORATION (VNTC) | VANGUARD NATIONAL TRAILER CORPORATION (VNTC) | 2005 | Trailer | 2 | 2026-09-26 |
| TR-03 | WABASH VANS | Dry Van Duraplate | 2012 | Trailer | 1 | 2026-09-23 |
| PU-03 | VOLVO TRUCK | VNL | 2024 | Truck-Tractor | 2 | 2026-09-23 |
| TR-04 | GREAT DANE TRAILERS | Great Dane Trailers | 2016 | Trailer | 1 | 2026-09-22 |
| PU-04 | VOLVO TRUCK | VNR | 2021 | Truck-Tractor | 1 | 2026-09-22 |
| PU-05 | KENWORTH | T680 | 2016 | Truck-Tractor | 1 | 2026-09-21 |
| TR-05 | HYUNDAI TRANSLEAD TRAILERS | Hyundai Translead Trailers | 2025 | Trailer | 2 | 2026-09-21 |
Operations
Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-19 18:21 UTCFetched 2026-10-20 13:19 UTC
Interstate (A)
Classification: AUTHORIZED FOR HIRE
35,000,000 mi
Reported year 2026
- General freight
- US mail
- Paper products
- Other: General Freight
- Interstate drivers >100 mi / ≤100 mi
- 275 / 0
- Intrastate drivers >100 mi / ≤100 mi
- 0 / 0
- Hazmat indicator (hm_ind)
- N
- Registered address
- 2505 N FRAZIER, CONROE, TX, 77303, US
Lanes and service areas are not published by FMCSA. The registered address is not an operating map, and inspection states are observations only — not live routes or a service area.
Identity & Federal
Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-19 18:21 UTCFetched 2026-10-20 13:19 UTC
- Legal name
- SOUTHERN MAIL SERVICE INC
- DBA
- Not provided
- USDOT
- 172954
- MC / FF / MX
- MC-1535071
- Physical address
- 2505 N FRAZIER, CONROE, TX, 77303, US
- Mailing address
- P O BOX 2145, HOUSTON, TX, 77252, US
- Business type
- CORPORATION
- Carrier/shipper code
- C
- Census add date
- 1974-06-01
- MCS-150 filing date
- 2026-05-13
- Power units / drivers
- 381 / 275
- Latest review (type · date)
- C · 2003-10-29
Federal activity
- 2026-05-13Census
Latest MCS-150 filing
- 2023-04-14yu5v-wbh6
Authority status change: Motor Carrier of Property (Except Household Goods) → Active (GRANTED)
- 2023-03-28c5y8-a4uz
Insurance filing effective — Great West Casualty Co
- 2003-11-13Census
Official safety rating: S
- 2003-10-29Census
Compliance review recorded (C)
- 1974-06-01Census
Added to FMCSA registration
Built only from dates in the sources above. Authority changes use FMCSA's own change date (yu5v-wbh6).
Changes observed by VAX monitoring
Loading…
FAQ
+What is SOUTHERN MAIL SERVICE INC's USDOT number?
USDOT 172954, with docket(s) MC-1535071.
+Is SOUTHERN MAIL SERVICE INC active?
The census registration status code is A. This is a registration code only — it is not operating authority, insurance coverage or a safety certification.
+How many trucks and drivers does SOUTHERN MAIL SERVICE INC report?
381 power units and 275 drivers, self-reported on the MCS-150 filed 2026-05-13.
+Does SOUTHERN MAIL SERVICE INC have insurance on file?
1 filing row(s) matched in the FMCSA insurance dataset, most recently effective 2023-03-28 (Great West Casualty Co). A filing is not a certificate of insurance.
+Where is SOUTHERN MAIL SERVICE INC located?
Registered physical address: 2505 N FRAZIER, CONROE, TX, 77303, US. This is a registration address, not an operating area.
Answers are generated from the records on this page.
Nearby carriers
TERAVENTIS, LLC
USDOT 99678431 power units · 4 drivers
R&F TRANSPORT SERVES LLC
USDOT 9687202 · MC-919457621 power units · 1 drivers
STAR ROAD TRUCKING LLC
USDOT 95975721 power units · 1 drivers
GMX FREIGHT SOLUTIONS
USDOT 9496157 · MC-973350240 power units · — drivers
GMV MOTORS LLC
USDOT 93828748 power units · 8 drivers
CQ2 TRANSPORT LLC
USDOT 92532233 power units · 2 drivers
Other census-active registrations in the same city, newest USDOT first. No ranking or relationship implied. · raw query · Fetched 2026-10-20 13:19 UTC
Sources
- FMCSA Company Census (az4n-8mr2)
- Carrier – All With History (6eyk-hxee)
- Motus Carrier daily (nakq-58th)
- Motus Insur – All With History (c5y8-a4uz)
- InsHist – All With History (6sqe-dvqs)
- SMS AB PassProperty (4y6x-dmck)
- Vehicle Inspection File (fx4q-ay7w)
- Crash File (aayw-vxb3)
Each section shows its own fetch time; official data may have changed since. Official records plus an explainable trial record reference score (beta, not an official rating; no total when data is insufficient). No ranking, risk labels or load recommendations. Listing does not imply partnership, endorsement or platform access.