FCC.reportPublic regulatory filings
FCC Registration Number

FRN 0017637265

CORES registration

CORES status
discovered

Connected companies

CompanyRelationshipSourceConfidence
CTSI, LLCregistrantFORM499100.0%
Frontier Communications Parent, Inc.registrantRMD100.0%

Public regulatory phone numbers

NumberContactSourceConfidence
(202) 412-9369Bill Wilhelm Frontier Communications Parent Inc. c/o CSC service_agentFORM49995.0%
(877) 462-7320CTSI, LLC customer_inquiriesFORM499100.0%

FCC Form 499 filers

Current as ofFiler IDLegal name
2026-04-01815558CTSI, LLC

Source provenance

SystemRecordRecorded nameRaw FRNObserved
RMD633261Frontier Communications Parent, Inc.00176372652026-08-06 06:48:27
FORM499815558:399515CTSI, LLC00176372652026-08-05 14:18:25
FORM499815558:399514CTSI, LLC00176372652026-08-05 14:18:25
FORM499815558:399512CTSI, LLC00176372652026-08-05 14:18:25
FORM499815558:399513CTSI, LLC00176372652026-08-05 14:18:25
FORM499815558:343866CTSI, LLC00176372652026-08-04 20:48:22
FORM499815558:343868CTSI, LLC00176372652026-08-04 20:48:22
FORM499815558:343865CTSI, LLC00176372652026-08-04 20:48:22
FORM499815558:343867CTSI, LLC00176372652026-08-04 20:48:22
FORM499815558:288218CTSI, LLC00176372652026-08-03 21:48:19
FORM499815558:288219CTSI, LLC00176372652026-08-03 21:48:19
FORM499815558:288221CTSI, LLC00176372652026-08-03 21:48:19
FORM499815558:288220CTSI, LLC00176372652026-08-03 21:48:19
FORM499815558:176924CTSI, LLC00176372652026-08-01 18:18:11
FORM499815558:176926CTSI, LLC00176372652026-08-01 18:18:11
FORM499815558:176925CTSI, LLC00176372652026-08-01 18:18:11
FORM499815558:176927CTSI, LLC00176372652026-08-01 18:18:11
FORM499815558CTSI, LLC00176372652026-07-31 22:18:06
FORM4995998CTSI, LLC00176372652026-07-31 21:18:04

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