FCC Registration Number

FRN 0026879700

CORES registration

Connected companies

CompanyRelationshipSourceConfidence
Sostratus LLCregistrantFORM499100.0%
Sostratus LLCregistrantRMD100.0%

Public regulatory phone numbers

NumberContactSourceConfidence
(800) 981-7183Brenna Lutter Business Filings Incorporated service_agentFORM49995.0%
(978) 865-4607Sostratus LLC customer_inquiriesFORM499100.0%
(978) 865-4607Richard Andrews mitigation_contactRMD100.0%

FCC Form 499 filers

Current as ofFiler IDLegal name
2026-04-01832263Sostratus LLC

Robocall Mitigation Database filings

RecertifiedRMD numberBusiness
2026-03-01RMD0017801Sostratus LLC

Source provenance

SystemRecordRecorded nameRaw FRNObserved
FORM499832263:707143Sostratus LLC00268797002026-08-14 01:19:04
FORM499832263:707144Sostratus LLC00268797002026-08-14 01:19:04
RMD649294Sostratus LLC00268797002026-08-07 02:18:30
FORM499832263Sostratus LLC00268797002026-08-01 17:48:09
FORM49926780Sostratus LLC00268797002026-08-01 16:18:07
RMDRMD0017801Sostratus LLC00268797002026-08-01 05:48:16

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