Here is an updated listing of what used to be referred to as the Department of Justice 25 Cities Project, and now seems to be just DoJ Federal Interoperability. There are some additional cites and new frequencies since the last update I did.
ATLANTA, GA
“ATL FIO” 170.4750 MHz, N653
BALTIMORE, MD
“BAL FIO LE3” 167.5000 MHz, N68F
BOSTON, MA
“BS FIO LE4” 168.1125 MHz, N68F
“BPD FIO” 158.9100 MHz, DPL165
CHICAGO, IL
“CG CMD C” 171.6875 MHz (CHICAGO COMMAND CENTRAL), N653
“CG CMD N” 170.8125 MHz (CHICAGO COMMAND NORTH), N653
“CG CMD S” 171.4375 MHz (CHICAGO COMMAND SOUTH), N653
“CG TAC C” 172.2125 MHz (CHICAGO TACTICAL CENTRAL), N653
“CG TAC N” 168.8875 MHz (CHICAGO TACTICAL NORTH), N653
“CG TAC S” 168.9125 MHz (CHICAGO TACTICAL SOUTH), N653
DALLAS/FORT WORTH, TX
“DFW EAST” 170.7250 MHz, N653
“DFW WEST” 171.4375 MHz, N653
DENVER, CO
“DEN IO N” 170.6625 MHz (DENVER NORTH), N653
“DEN IO E” 171.9875 MHz (DENVER EAST), N653
“DEN IO C” 171.4375 MHz (DENVER CENTRAL), N653
“DEN IO S” 172.1875 MHz (DENVER SOUTH), N653
“DEN IO W” 167.2625 MHz (DENVER WEST), N653
DETROIT, MI
“DET FIO” 170.5625 MHz, N653
EL PASO, TX
“EP FIO-W” 171.2250 MHz, N653
“EP FIO-E” “173.6375 MHz, N653
HARTFORD, CT
“C FEDCOM-N” 171.2250 MHz, N653
“C FEDCOM-S” 171.4000 MHz, N653
“C FEDCOM-E” 171.9750 MHz, N653
HONOLULU, HI
“HNL FIO” 170.6250 MHz, N653
“HNL FIO 2” 168.9875 MHz, N653
“LE-4” 168.1125 MHz, N68F
“HNL FIRE” 154.280 MHz, 156.7 PL
HOUSTON, TX
“HOU CMD” 170.7250 MHz, N653
“HOU PAT” 171.4375 MHz, N653
JACKSONVILLE, FL
“JAX FIO” 171.4375 MHz, N653
LOS ANGELES, CA
“LA FIO 1” 173.5500 MHz, N653
“LA FIO 2” 172.4125 MHz, N653
“LA FIO 3” 173.6000 MHz, N653
MIAMI, FL
“MIA FIO” 171.4375 MHz, N653
MINNEAPOLIS/ST. PAUL, MN
“FEDCOM MP” 170.6250 MHz, N653
“FEDCOM SP” 171.6125 MHz, N653
NEW ORLEANS, LA
“NOLA FIO” 171.4375 MHz, N653
NEW YORK CITY, NY
“NYC FIO” 167.7875 MHz, N653
“NYC FIO-2” 171.1750, N653
“NYC FIO-N” 173.9250 MHz, N653
“NYC FIO-E” 173.1875 MHz, N653
“NYC FIO-S” 173.8625 MHz, N653
NORFOLK/ HAMPTON ROADS, VA
“HRN FIO” 165.7000 MHz, N653
ORLANDO, FL
“ORL FIO” 172.3000 MHz, N653
PHILADELPHIA, PA
“PH FIO” 171.4375 MHz, N653
RICHMOND, VA
“RH FIO-P” 168.4625 MHz, N68F
“RH FIO-R” 168.1125 MHz, N68F
SAN DIEGO, CA
“CA LAW1” 154.9200 MHz, 156.7 PL
“V LAW31” 155.4750 MHz, 156.7 PL
“800 FIREMARS” 868.9875 MHz, 156.7 PL
“800 CLEMARS” 868.5125 MHz, 156.7 PL
SAN FRANCISCO, CA
“SF FED-V” 171.6127 MHz, N653
“SF FED-U” 410.4125 MHz, N653
“SF MA V-A” 168.7625 MHz, 167.9 PL
“SF MA U-A” 409.0125 MHz, 167.9 PL
“SF FED-ED” 170.5625 MHz, N653
“SF FED-ES” 179.8875 MHz, N653
“SF FED-ET” 169.6375 MHz, N653
“SF FED-EW” 170.3750 MHz, N653
ST. LOUIS, MO
“STL CALL” 171.4375 MHz, N653
“STL TAC” 171.6875 MHz, N653
TAMPA, FL
“TAM FIO” 171.6875 MHz, N653
WASHINGTON, DC
“DCIO 1” 159.1500 MHz, N652
“DCIO 2 LE-2” 167.2500MHz, N68F