Originally Posted by robyroby

These are the rules for codeshares flights for Skyteam/RTW

FLIGHT APPLICATION
The fare component must not be on any one of the following flight numbers:
Carrier Travel Not Permitted Via Flights Numbered:
AF 4400-4999 / 7100-7288 / 8000-9999
AM 3000-4999 / 7000-7399 / 9120-9121 / 9300-9399 / 9563-9564
AZ 3000-3999 / 7000-7999
CO 2970-3199 / 3500-3599 / 4900-4999 / 8060-9623 / 9844-9999
DL 5913-6057 / 7780-7849 / 8660-8709 / 8840-9124 / 9840-9899
KE 5000-5999 / 7000-7999
KL 2500-2996 / 2999-3119 / 3130-4349 / 7100-7399
NW 2000-2699 / 3800-4699 / 4800-5099 OK 3320-3370 / 4000-4189 / 4192-4625 / 4630-4719 / 4730-4743 / 4770-4999