Department of Transportation (Iowa) Scanner Frequencies and Radio Frequency Reference

Department of Transportation (Iowa)

Last Updated: June 9, 2026, 18:51 pm UTC

Department of Transportation has migrated to the Iowa Statewide Interoperable Communications System (ISICS)

https://www.radioreference.com/apps/db/?sid=8734

See Wiki for district map

Grouped

All

New/Updated

Show Repeater Inputs

All operations, except those listed below, now on ISICS. Old VHF P25 Repeaters and information has been archived in the wiki.

Operations

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
156.1125		M	117 NAC	DOT PAINT	Paint Crew	P25	Public Works