AA
AVIATION AUXILIARY GROUP
AC
CIVIL AIR PATROL
AD
AVIATION DEVELOPMENTAL
AF
AERONAUTICAL AND FIXED GROUP
AG
AIRCRAFT GROUP
AR
AIRCRAFT
AX
AERONAUTICAL MOBILE SATELLITE
BA
BROADCAST AUXILIARY SYSTEMS
BF
FM BROADCAST
BI
INTERNATIONAL BROADCAST
BS
BROADCAST STATIONS
BT
TELEVISION STATIONS
CA
INDIVIDUAL MOBILE RADIO
CC
INTERNATIONAL FIXED PUBLIC CONTROL
CD
MOBILE TELEPHONES
CE
DIGITAL ELECTRONIC MESSAGE SERVICE
CF
POINT TO POINT MICROWAVE
CG
DOMESTIC PUBLIC AIR-GROUND
CI
INTERNATIONAL FIXED PUBLIC
CL
CELLULAR TELEPHONES
CM
MULTI POINT DISTRIBUTION
CO
OFFSHORE RADIOTELEPHONE   (ORTS)
CP
INTERNATIONAL FIXED PUBLIC PRESS
CR
RURAL RADIO
CS
INTERNATIONAL FIXED SATELLITE
CT
LOCAL TELEVISION TRANSMISSION
CX
DOMESTIC FIXED SATELLITE
EX
EXPERIMENTAL EXPORT
GB
OTHER BUSINESS REPEATERS
GC
MOTOR CARRIER GROUP
GO
OTHER SERVICES GROUP
GP
CONVENTIONAL PUBLIC SAFETY & EMERGENCY
GS
900 MEGAHERTZ PAGING
GX
MIXED SERVICES GROUP
HA
AMATEUR
HR
RACES
HS
AMATEUR SATELLITE
IB
BUSINESS RADIO SERVICE
IF
FOREST PRODUCTS SERVICE
IM
MOTION PICTURE RADIO SERVICE
IP
INDUSTRIAL PETROLEUM RADIO SERVICE
IS
SPECIAL INDUSTRIAL RADIO SERVICE
IT
TELEPHONE MAINTENANCE RADIO SERVICE
IW
INDUSTRIAL POWER RADIO SERVICE
IX
INDUSTRIAL MANUFACTURES RADIO SERVICE
IY
NEWSPAPERS
LA
TOW TRUCKS
LI
BUSES
LJ
TRUCKING COMPANIES
LR
RAILROADS
LU
URBAN PASSENGER
LV
TOW TRUCK COMPANIES
LX
TAXICAB COMPANIES
MA
MARINE AUXILIARY GROUP
MC
MARINE RADIO SERVICE
MK
ALASKA GROUP
MR
MARINE
MS
SHIP GROUP
MX
MARITIME MOBILE SATELLITE
PF
FIRE DEPARTMENTS
PH
HIGHWAY MAINTENANCE RADIO SERVICES
PL
LOCAL GOVERNMENT
PO
FORESTRY RADIO SERVICE
PP
POLICE DEPARTMENTS
PS
PUBLIC SAFETY SERVICES
RA
RADIO ASTRONOMY
RS
RADIOLOCATION
SF
STANDARD FREQUENCY
SM
INDUSTRIAL SCIENTIFIC AND MEDICAL
TR
CABLE TELEVISION RELAY
XC
EXPERIMENTAL DEVELOPMENTAL CONTRACT
XD
EXPERIMENTAL STATIONS
XR
EXPERIMENTAL RESEARCH
YB
BUSINESS GROUP
YO
YP
TRUNKED PUBLIC SAFETY & EMERGENCY
YX
TRUNKED SMR
ZA
GENERAL MOBILE
ZC
RADIO CONTROL
ZD
CITIZENS BAND
IV
FILM AND VIDEO PRODUCTION
PM
EMERGENCY MEDICAL
GF
CONV PUB SAF & SPEC EMER - NATIONAL PLAN
YF
TRNK PUB SAF & SPEC EMER - NATIONAL PLAN
GA
CONVENTIONAL PUB SAF & SPEC EMERGENCY
GR
CONVENTIOANL SMR
YA
TRUNKED PUB SAF & SPEC EMERGENCY
YS
GI
CONVENTIONAL OTHER INDUST & LAND TRAN
GU
CONVENTIONAL BUSINESS
YI
TRUNKED OTHER INDUSTRIAL & LAND TRANSPOR
YU
TRUNKED BUSINESS
NL
NATIONWIDE NON-COMMERCIAL  10 CHANNEL
NS
NATIONWIDE NON-COMMERCIAL   5 CHANNEL
NC
NATIONWIDE COMMERCIAL  5 CHANNEL
QT
NON NATIONWIDE 5 CHANNEL TRUNKED
QD
NON NATIONWIDE DATA
QM
NON NATIONWIDE PUBLIC SAFETY/ MUTUAL AID
QO
NON NATIONWIDE OTHER
LP
LOW POWER
RP
REMOTE PICKUP
GENERAL MODILE RADIO
ZV
INTERACTIVE VIDEO & DATA
PD
PRIVATE POLICE AGENCIES
UT
UTILITY COMPANIES RADIO SERVICE
NM
NEWS MEDIA RADIO SERVICES
WX
WEATHER STATIONS
BR
BUSINESS RADIO (SIMPLEX)
RR
INDUSTRIAL BUSINESS REPEATERS
FD
FUNERAL DIRECTORS
VE
VETERINARIANS
SP
SPACE SATELLITES
AM
AMATURE RADIO
BP
BUSINESS RADIO PAGING
BUSINESS RADIO (TRUNKED SYSTEMS)
SW
SHORT WAVE STATIONS
PT
POINT TO POINT RADIO SYSTEMS
IN
INTERNATIONAL RADIO SYSTEMS
MO
MOBILE RADIO UNITS