RPO Codes (Regular Production Options)
https://www.vindecoderz.com/

Example of info that you can get from your VIN:

CarID
Brand PONTIAC
Manufacturer Id
Catalog GM
Model
Name Firebird
ImageUrl
Date
Actual
KolCount 0
KolComment
Vin
Production_date
Model_year 2000
Engine (LS1) ENGINE GAS, 8 CYL, 5.7L, SFI, ALUMINUM ENGINE
Transmission (MM6) TRANSMISSION MAN 6 SPD, 85MM, 1ST 2.66, 6TH 0.50, O/DTRANSMISSION MAN 6 SPD, TREMEC, 85MM, 2.66 1ST, 0.50 6TH, O/D
Model_conversion WS9
Model_code F,2FS87

RPO Codes:

AG1 (ADJUSTER FRT ST POWER, MULTI-DIRECTIONAL, DRIVER); U75 (ANTENNA,POWER(CHROME)); J65 (BRAKE SYSTEM,POWER,FRONT AND REAR DISC); 10U (EXTERIOR COLOR,ARTIC WHITEEXTERIOR COLOR,PRIMARY); UB3 (CLUSTER,INSTRUMENT(OIL,COOLANT TEMPERATURE,VOLTMETER,TACHOMETER,TRIP ODOMETER)); V12 (COOLING SYSTEM,POWER STEERING FLUID); NC1 (EMISSION SYSTEM CALIFORNIA, LEV); YF5 (CALIFORNIA EMISSION CERTIFICATION); DL5 (DECAL ROADSIDE SERVICE INFORMATION); W55 (ENTERTAINMENT SYSTEM OPTION E); AAA (STANDARD EQUIPMENT FOR ABOVE VEHICLES); R7X (CONTROL SALES ITEM NO. 48); R9P (CONTROL - SALES ITEM NO. 90); R9Z (CONTROL - SALES ITEM NO. 100); 6ZL (COMPONENT FRT LH COMPUTER SEL SUSP (6ZL)); 7ZL (COMPONENT FRT RH SUSP); K43 (GENERATOR 102 AMP); T78 (HEADLAMPS CONTROL-DELETE); CAF (HANDLING CHARGE GM ST. THERESE TO AMERICAN SUNROOF (ASC) FOR UPFITTER CONVERSION (VTIMS)); C60 (AIR CONDITIONER,FRONT,MANUAL CONTROLS); IPB (TRIM,INTERIOR DESIGN); VG6 (VEHICLE LABEL, NOTICE TO BUYER, 5 MPH BUMPER IMPACT, CALIFORNIA); AU0 (LOCK CONTROL,REMOTE ENTRY(KEYLESS ENTRY SYSTEM)); AU3 (LOCK,SIDE DOOR,ELECTRIC); DG7 (MIRROR,OUTSIDE,RH & LH REMOTE CONTROL,ELECTRIC(PAINTED)); WS9 (MODEL CONVERSION FORMULA(MERCHANDISING OPTION)); MN6 (TRANSMISSION,MANUAL 6-SPEED PROVISIONS(MERCHANDISING OPTION)); G80 (AXLE,REAR,POSITRACTION,LIMITED SLIP); STE (PLANT CODE- ST THERESE, PQ, GM OF CANADA); A31 (WINDOW,ELECTRIC OPERATED,SIDE WINDOW,POWER OPERATED,ALL DOORS); GU6 (AXLE,REAR,3.42 RATIO); AK5 (RESTRAINT SYSTEM,FRONT SEAT,INFLATABLE,DRIVER AND PASSENGER); 8TH (COMPONENT RR LH COMPUTER SEL SUSP (8TH)); 9TH (COMPONENT RR RH COMPUTER SEL SUSP (9TH)); W66 (FORMULA OPTION(MERCHANDISING OPTION)); 1SA (PACKAGE-OPTION 01); WS6 (PERFORMANCE PACKAGE,SPECIAL(MERCHANDISING OPTION)); FE4 (SUSPENSION SYSTEM SPECIAL RIDE & HANDLING); AR9 (SEAT,FRONT BUCKET,DRIVER,PASSENGER,MANUAL RECLINING(EUROPEAN STYLE)); UK3 (CONTROL STEERING WHEEL,ACCESSORY); NP5 (STEERING WHEEL,LEATHER WRAPPED); NW9 (TRACTION CONTROL ELECTRONIC); UA6 (THEFT DETERRENT SYSTEM); QFK (TIRE ALL P275/40ZR17 93W BW R/PE ST TL HW4); 19B (TRIM COMBINATION,CLOTH,BLACK); 19I (INTERIOR TRIM COLOR BLACK/EBONY INTERIOR TRIM,EBONY); PBT (IDENTIFICATION TEMPORARY WHL & TIRE FOR UPFITTER DELIVERY); YA7 (TEST EMISSION, CALIFORNIA ASSEMBLY LINE); V73 (VEHICLE STATEMENT - US/CANADA); 1AZ (SOLD ORDERS); VG8 (LABEL,NOTICE TO BUYER); QF6 (WHEEL 17 X 9, ALUMINUM)

 

And I thought AAA was free towing.