Carrier profile · USDOT 8421 · FMCSA data fetched 2026-10-12
INSULATION & REFRACTORIES SERVICES INC
5 power units9 driversInterstateMEMPHIS, TN
Census status Active (A)
Official links FMCSA SAFER
← Back to overviewIdentity & Federal · USDOT 8421
05
Identity & Federal
Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-11 10:50 UTCFetched 2026-10-12 14:45 UTC
- Legal name
- INSULATION & REFRACTORIES SERVICES INC
- DBA
- Not provided
- USDOT
- 8421
- MC / FF / MX
- Not provided
- Physical address
- 462 DECATUR ST, MEMPHIS, TN, 38105, US
- Mailing address
- 462 DECATUR ST, MEMPHIS, TN, 38105, US
- Business type
- CORPORATION
- Carrier/shipper code
- C
- Census add date
- 1974-06-01
- MCS-150 filing date
- 2026-03-20
- Power units / drivers
- 5 / 9
- Latest review (type · date)
- C · 1993-10-26
06
Federal activity
- 2026-03-20Census
Latest MCS-150 filing
- 1993-12-03Census
Official safety rating: S
- 1993-10-26Census
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
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