Island Telephone Company

Madison, WI Doing business as Tri-County Telephone Co Inc. Part of TDS Telecommunications LLC

UEI: JF57X84PHLF5
CAGE: 5LLC7
Primary NAICS: 517111 Wired Telecommunications Carriers
SAM.gov registration: Active through Jun 9, 2027

Company facts

Self-certified in SAM.gov: For Profit Organization
Entity structure: Corporate Entity (Not Tax Exempt)
NAICS codes registered in SAM.gov: 517111 Wired Telecommunications Carriers Primary

517810 All Other Telecommunications
Corporate family: TDS Telecommunications LLC Parent HKFZDHFKVAB9

Island Telephone Company JF57X84PHLF5
SAM.gov registration date: Jul 23, 2009
Physical address: 525 Junction Rd, Madison, WI 53717, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Jun 23, 2026.

Recent federal awards

Island Telephone Company's latest federal award, newest first. Amounts are dollars obligated.
Award	Agency	Obligated	Awarded
Direct BB treasury rate grant - (FY09-10) stimulus Grant · RO3576615378	Rural Utilities Service	$1,976,016	Aug 5, 2010

Quick answers

What is Island Telephone Company's UEI?

Island Telephone Company's Unique Entity ID (UEI) in SAM.gov is JF57X84PHLF5.

What is Island Telephone Company's CAGE code?

Island Telephone Company's CAGE code is 5LLC7.

What is Island Telephone Company's primary NAICS code?

Island Telephone Company's primary NAICS code is 517111 (Wired Telecommunications Carriers).

Where is Island Telephone Company located?

Island Telephone Company's physical address in SAM.gov is 525 Junction Rd, Madison, WI 53717, USA.

Is Island Telephone Company registered in SAM.gov?

Yes. Island Telephone Company's SAM.gov registration is active through June 9, 2027.

Who is Island Telephone Company's parent company?

Island Telephone Company is part of TDS Telecommunications LLC.

What is Island Telephone Company's most recent federal award?

Island Telephone Company's most recent federal grant award is Direct BB treasury rate grant - (FY09-10) stimulus (RO3576615378), from Rural Utilities Service, on August 5, 2010.

On GovTribe

See Island Telephone Company's full federal record

Federal grant awards
Funding analysis by agency, NAICS and set-aside
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