In Tres, the card code is a two digit alpha code used to identify a loyalty or credit card type. Example: Alamo - AL, Best Western - BW, American Airlines - AA. Below is a reference guide to hotel chain, rental car, and airline codes.
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Credit Card Codes
| Credit Card | Card Code |
| American Express | AX |
| Discover | DI |
| Mastercard | CA |
| Visa | VI |
Hotel Chain Codes
| Hotel Chain | Card Code |
| AC Hotels by Marriott | A2 |
| ATAhotels | AQ |
| Acc-Nifos Hotels | IF |
| Accor Hotels | RT |
| Aha Hotels | GO |
| Alesia Distributn | OK |
| Alila Hotels and Resorts | LF |
| Allegiance Services | AV |
| Aloft Hotels | AL |
| Amadeus Linkhotel | OI |
| Aman Hotels | AM |
| AmericInn | AW |
| Americinns | AA |
| Ameris by Nobile | GN |
| Amerisuites | AJ |
| Ana Hotels | AN |
| Anasazi Access Hotels | AX |
| Aqua Hotels and Resorts | QU |
| Archer Hotels | OA |
| Arlo Hotels | CK |
| Armani Hotels | AI |
| Ascend Collection | NZ |
| Aston Hotels And Resorts | AH |
| Atel Hotels Network | AC |
| Atlantis Hotels | AO |
| Auberge Resorts | AU |
| Autograph Collection | AK |
| Avid Hotels | VA |
| B Hotels and Resorts | JB |
| Baccarat and 1 Hotels | BI |
| Bachelor Quarters | BQ |
| Banyan Tree Htls | BY |
| Barcelo Hotels | BN |
| Baymont Inns And Suites | BU |
| Belmond | OE |
| Benchmark | BE |
| Best Value Inns | BV |
| Best Western | BW |
| Bulgari Hotels and Resorts | BG |
| Business Traveler Advantage | BT |
| CMNet Hotels | BZ |
| CWT Pvt Content | ZW |
| Caesar Park Hotels | CJ |
| Cambria Suites | EZ |
| Camino Real | CM |
| Candlewood Suites | YO |
| Canopy by Hilton | PY |
| Canvas Hospitality | HC |
| Carino Hotels | UN |
| Carlson Hotel Brands | CW |
| Central Individual Hotels | IH |
| Chakela Hotels | CR |
| Chateaux And Hotels Collection | EU |
| Choice Brands | EC |
| CitizenM Hotels | CU |
| City Express Hotels | XE |
| City Lodge | CG |
| Clarion Hotels | CC |
| Classic British | CB |
| Club Quarters | CQ |
| Clubhouse Inns | KL |
| Cmnet | CT |
| Coast Hotels | WX |
| Coastal Hotels | UC |
| Colony Resorts | CS |
| Columbus Reservation Svc | BX |
| Comfort Inn | CI |
| Comfort Suites | CZ |
| Como Hotels | CV |
| Conrad Hotels | CN |
| Corinthia Hotels | IA |
| Corus Hotels | CL |
| Country Inns and Suites by Carlson | CX |
| Courtyard By Marriott | CY |
| Crowne Plaza Hotels and Resorts | CP |
| Cumulus | SX |
| Curio Collection | |
| D-Edge | FG |
| DOT Hotels | DH |
| Dalata Hotel Group | DA |
| Days Inn | DI |
| Dedica Anthology | BA |
| Delta Hotels | DE |
| Denihan Hospitality Group | NY |
| Design Hotels | DS |
| Design Partners | DP |
| Destination Hotels | DN |
| Destinations Unlimited | DU |
| Deutsche Hospitality | SR |
| Dolce Hotels | DX |
| Domina Hotels | DM |
| Doral Resorts | DL |
| Dorchester Collection | DC |
| Dorint Hotels | DO |
| Doubletree Hotels | DT |
| Doyle Collection | JD |
| Dream Hotels | DZ |
| Drury Inns | DR |
| Dusit Hotels and Resorts | DW |
| EDS Lodging | ED |
| ELEMENT HOTELS | EL |
| Eaton Hotels | EQ |
| Econo Lodge | EO |
| Eden Hotels | ER |
| Edition | EB |
| El San Juan Hotels | EJ |
| Embassy Suites | ES |
| Emporio Hotels and Resorts | EF |
| Enchantment Group | EG |
| Epoque Hotels | EP |
| Esplendor and Dazzler | FE |
| Even Hotels | VN |
| Every BWH Hotel | EW |
| Excalibur Hotel | XC |
| Executive Hotels And Resorts | EI |
| Expedia Affiliate | EN |
| Expotel Hotel Reservations | RN |
| Extended Stay America | EA |
| Extra Holidays | XH |
| Fairfield Inn | FN |
| Fairmont Hotels | FA |
| Fiesta Americana | FH |
| First Hotels | FX |
| Flemings Hotels | FL |
| Fontainbleau Resorts | FB |
| Four Points | FP |
| Four Seasons Hotels | FS |
| Frasers Hospitality | FI |
| GHA Brands | GL |
| GHS Global Hospitality | GK |
| GLH Amba Thistle Gouman | TI |
| Gamma Hotels | YP |
| Gansevoort Hotels | GV |
| Gaylord Hotels | GE |
| Genre Hotels | GQ |
| Global Alliance | GA |
| Global Hospitality Services | GF |
| Global Res | XN |
| Golden Tulip Hotels | GT |
| Graduate Hotels | GP |
| Grand City Hotels | XG |
| Grand Heritage | GH |
| Grand Hotels NYC | GG |
| GrandStay Hospitality | GS |
| Grande Devere Hotels | FT |
| Great Hotels Of The World | GW |
| HOTELS AND PREFERENCE | IW |
| HRS | HQ |
| Hampton Inn | HX |
| Hard Rock Hotels | RK |
| Harrahs Casinos | HR |
| Harvey Hotels | HV |
| Hawthorn Suites | BH |
| Hetras | RM |
| Hilton Brands | EH |
| Hilton Garden Inn | GI |
| Hilton Hotels | HH |
| Hilton International | HL |
| Historic Hotels | HE |
| Holiday Inn | HI |
| Home2suites | HT |
| HomeTowne Studios | HS |
| Homewood Suites By Hilton | HG |
| Hospitality Solutions | GR |
| Hot Key International | HK |
| HotUSA | HA |
| Hotel Indigo | IN |
| Hotel World | HW |
| Hotel Zaza | ZA |
| HotelREZ Hotels & Resorts | HO |
| Hoteles Mision | HM |
| Hotelnet | BB |
| Howard Johnson | HJ |
| Hualuxe Hotels | UL |
| Hub by Premier Inn | HP |
| Hyatt Hotels And Resorts | HY |
| Hyatt Vacations | HU |
| INTRIGUE Hotels and Resorts | NI |
| Ian Schrager Hotels | IS |
| Iberostar Hotels | IR |
| Ibis Budget | AE |
| Idiso Hotel Distribution | TY |
| IHG Hotels and Resorts | 6C |
| Innlink | SM |
| Innpoints | IP |
| InterContinental Hotels Group | 6C |
| InterContinental Hotels and Resorts | IC |
| JR Hotel Group | JR |
| Jin Jiang Hotels | JJ |
| Joie De Vivre Hotels | JV |
| Jumeirah | JT |
| Jurys Inns | JI |
| KSL Resorts | KO |
| Kempinski Hotels And Resorts | KI |
| Keytel | KY |
| Kimpton Hotels | KC |
| Krystal Hotels | KB |
| L.E.Hotels | LE |
| LOTTE HOTELS AND RESORTS | LL |
| LXR Hotels and Resorts | OL |
| La Quinta Inns Inc | LQ |
| Langham Hotels International | LO |
| Lanyon | LN |
| Le Meridien | MD |
| Leading Hotels Of The World | LW |
| Lebua Hotels | LB |
| Leela Hotels | LR |
| Leonardo Hotels | LD |
| Lexington Collection | LP |
| Lindner Hotels | LG |
| Loews Hotels | LZ |
| Louvre Hotels | NN |
| Luxury Accommodations | LA |
| Luxury Collection | LC |
| Luxury Lifestyle | QX |
| Luxury Resorts | XO |
| MGM Resorts International | MV |
| MI Independent | ZX |
| Macdonald Hotels Group | GB |
| Magnolia Hotels | MG |
| Magnuson Hotels | MS |
| MainStay Suites | MZ |
| Malmaison Hotel Group | MI |
| Mandarin Oriental Hotels | MO |
| Mantra Group | MP |
| Marco Polo Hotels | MH |
| Maritim Hotels | MM |
| Marriott All Inclusive | IM |
| Marriott Brands | EM |
| Marriott Conference Ctr | ET |
| Marriott Execustay | EE |
| Marriott Hotels | MC |
| Marriott Vacation Club | VC |
| Maybourne Hotel Group | VY |
| Melia Hotels | ME |
| Melrose Hotels | ML |
| Meristar Hotels/Resorts | BK |
| Meritus Hotels | GM |
| Microtel Inns and Suites | MT |
| Millenium/Copthorne Hotels | MU |
| Minor Hotels | OH |
| Montage Hotels & Resorts | MN |
| Montcalm London Hotels | LU |
| Moore Reservation Systems | MW |
| Morgans Hotel Group | MR |
| Motel 6 | MX |
| Motto by Hilton | UA |
| Moxy Hotels | OX |
| Myfidelio | IQ |
| NH Hotel Group | NH |
| National Hotels | ND |
| Navy Lodging | NL |
| New Otani Hotels | NO |
| New World Hotels | NW |
| Next Hotels | SD |
| Nikko Hotels International / Hotel JAL | NK |
| Noble House Hotels | NC |
| Nobu Hotels | NB |
| Northwood Hospitality | NU |
| Oakwood | OW |
| Oberoi Hotels | OB |
| Oetker Collection | OT |
| Okura Hotels And Resorts | OC |
| Omni Hotels | OM |
| Omnibees | HB |
| One And Only Hotels | OO |
| Outrigger Hotels | OR |
| Oyo Hotels | OY |
| Pan Pacific Hotels | PF |
| Park Inn | PD |
| Park Plaza Hotels and Resorts | PK |
| Parkroyal Hotels | PL |
| Pegasus UI | UI |
| Pegasus UZ | UZ |
| Pegasus XT | XT |
| Pentahotels | PT |
| Philips Hotel Group | PG |
| Preferred Brands | PV |
| Preferred Hotels | PH |
| Preferred Hotels Affiliate Htl | BC |
| Premier Inn | PI |
| Prince Resorts | PJ |
| Principal Hotel Company | PA |
| Protea | PR |
| Pullman Hotels | PU |
| Purple Hotels | PQ |
| QHotels | QH |
| QT | QT |
| Quality Inns and Suites | QI |
| Quality Reservations | QR |
| Queen Moat Houses | QM |
| Queens Hotels Germany | QL |
| Radisson Hotels and Resorts | RD |
| Raffles Hotels & Resorts | YR |
| Ramada International | NR |
| Ramada Worldwide | RA |
| Reconline | ON |
| Red Lion Hotels | RL |
| Red Roof Brands | RR |
| Red Roof Inns | RF |
| Regal Hotels International | RQ |
| Regent International Hotels | RE |
| Registry Collection | TR |
| Relais Chateau | WB |
| Renaissance Hotels and Resorts | BR |
| ResHub | RH |
| Reservhotel International | TA |
| Residence Inn | RC |
| Resort Bookings | RB |
| Resort Condominiums | RJ |
| ResortQuest International | QV |
| Ritz Carlton Club | ZC |
| Ritz Carlton Hotels | RZ |
| Rixos Hotels | RX |
| Rocco Forte Hotels | FC |
| RocketFuel | FR |
| Rodeway Inn | RI |
| Rosewood Hotels | RW |
| Rotana Hotels | RO |
| Rydges Hotel Group | RG |
| SEH United Hotels | OG |
| Sandman Hotels | PS |
| Scandic Hotels | SH |
| Sceptre Hospitality Resources | SC |
| Sercotel Hotels | SE |
| Shangri La Hotels | SG |
| Sheraton Hotels and Resorts | SI |
| SiteMinder | GD |
| Sixty Hotels | SK |
| Sleep Inn | SZ |
| Small Luxury Hotels | LX |
| Sofitel Hotels | SB |
| Sokos Hotels | SO |
| Sonesta Collection | SN |
| Special Properties | SP |
| SpringHill Suites | XV |
| Stamford Hotels | YS |
| Standard International | AP |
| Starhotels | SY |
| Staybridge Suites | YZ |
| Suburban Hotels | UB |
| Super 8 | OZ |
| SureStay | UR |
| Sutton Place | SF |
| Swallow Hotels | UK |
| Sweden Hotels | OS |
| Swiss Quality | QO |
| Swissotel Hotels | SL |
| SynXis | YX |
| Taj Hotels | TJ |
| Tapestry Collection | UP |
| The Address Hotels And Resorts | AT |
| The Ascott Limited | AZ |
| The Peninsula Hotels | PN |
| The St Regis | XR |
| Thompson Hotels | TM |
| Thon Hotels | TF |
| Toga Hotels | TD |
| Top International | TP |
| TownPlace Suites | TO |
| Trademark Collection | TQ |
| TravelClick | WV |
| TravelClick Brands | TC |
| Travelodge | TL |
| Travelodge UK And Europe | TG |
| Travelport CVV Properties | TU |
| Travelport EX Hotels | TZ |
| Tribute Portfolio | TX |
| Trident Hotels | TH |
| Tru by Hilton | RU |
| Trump Hotels | TW |
| Tryp Hotels | WT |
| Tsogo Sun Hotels | SU |
| Two Roads Hospitality | IT |
| Unscripted Hotels | US |
| VIP Hotels | VP |
| Vacation Click | VK |
| Vantis Hotel Group | LM |
| Vantis Hotels | VE |
| Venu Hotels | VU |
| Viceroy Hotel Group | VG |
| Vienna House | VI |
| Village Hotels | DV |
| Virgin Hotels | VL |
| Voco | VX |
| W Hotels | WH |
| Waldorf Astoria Hotels and Resorts | WA |
| Warwick Hotels | WK |
| Westcoast Family | WF |
| Westin Hotels and Resorts | WI |
| Westmark Hotels | WM |
| Whiteboard Labs | PW |
| Wingate Hotels | WG |
| WoodSpring Suites | WS |
| WorldHotels Collection | XW |
| Worldhotels | WW |
| Worldhotels United | UU |
| Wyndham Extra Holidays | WO |
| Wyndham Hotels | WY |
| Wyndham Rewards | WR |
| Xenia Hotellerie | ST |
| Yotel | YL |
Rental Car Codes
| Car Company | Card Code |
| Ace | AC |
| Advantage | AD |
| Alamo | AL |
| Americar | AF |
| Avis | ZI |
| Budget | ZD |
| Capps Vans | CV |
| Discount | DS |
| Dollar | ZR |
| Enterprise | ET |
| Europcar | EP |
| Exoticar Express | EE |
| EZ Car Rent | EZ |
| Fox Rent a Car | FX |
| Hertz | ZE |
| Holiday Autos | HA |
| Independent | IA |
| ITS | SL |
| L&M Car Rental | LM |
| Localize Rent a car | LL |
| National | ZL |
| New Frontier | NF |
| Payless | ZA |
| Practical | ZP |
| Rent Rite | RR |
| Sixt Rent a Car | SX |
| Thrifty | ZT |
| Unidas | UN |
| Usave Auto Rental | SV |
Airline Codes
| Airline | Card Code |
| Aer Lingus | EI |
| Aero Peru | PL |
| Aeroflot | SU |
| Aerolineas | AR |
| Aeromexico | AM |
| Air Aruba | FQ |
| Air Canada | AC |
| Air France | AF |
| Air India | AI |
| Air Jamaica | JM |
| Air New Zealand | NZ |
| Air One | AP |
| Air Valee | DO |
| AirTran | FL |
| Alaska Airlines | AS |
| Alitalia | AZ |
| All Nippon Airways | NH |
| Aloha Air | AQ |
| America West Airlines | HP |
| American Airlines | AA |
| Austrian Airlines | OS |
| Avianca | AV |
| Aviateca | GU |
| Breeze Airways | MX |
| British Airways | BA |
| China Airlines | CI |
| Continental Airlines | CO |
| Delta Air Lines | DL |
| Ecuatoriana | EU |
| El Al Israel Airlines | LY |
| Finnair | AY |
| Garuda Indonesian Airways | GA |
| Go Fly Ltd. | OG |
| Hawaiian Airlines | HA |
| Iberia | IB |
| Japan Airlines | JL |
| Korean Air | KE |
| Lacsa Airlines | LR |
| Ladeco | UC |
| Lan Chile Airlines | LA |
| Lot Polish Airlines | LO |
| Lufthansa | LH |
| Martinair Holland | MP |
| Midwest Express | YX |
| Northwest Airlines | NW |
| Olympic Airways | OA |
| Philippine Air Lines | PR |
| Qantas Airways | QF |
| Royal Jordanian Airlines | RJ |
| Sabena World | SN |
| Singapore Airlines | SQ |
| Southwest Airlines | WN |
| Swissair | SR |
| Thai Airways | TG |
| Tower Air | FF |
| Trans World Airlines | TW |
| United Airlines | UA |
| US Airways | US |
| Varig Airlines | RG |
| Virgin Atlantic Airways Limited | VS |
Cruise Line Codes
The Card Code field is limited to two characters. Please use the Description field to enter the cruise line.