Too many sectors in Eu from MM . MM is not up to date but a fair guide.
DXB is in Eu accoriing to OneWorld. http://gc.kls2.com/cgi-bin/gc?PATH=T...NGE_STYLE=best

Origin: TCI (es); ex-TCI xONEx Fare Estimate
1: TFS-MAD: 1st of 4 (Europe)
2: MAD-LHR: 2nd of 4 (Europe)
3: LHR-LAS: 1st of 1 (intercontinental entry to North America without immediate transit & departure)
Error!!! No oneworld service exists LHR-LAS
4: LAS-LAX: 1st of 6 (North America)
5: LAX-SFO: 2nd of 6 (North America)
6: SFO-HKG: 1st of 1 (intercontinental entry to Asia without immediate transit & departure)
7: HKG-BKK: 1st of 4 (Asia)
8: BKK-SIN: 2nd of 4 (Asia)
9: SIN-HKG: 3rd of 4 (Asia)
10: HKG-DXB: intercontinental
11: DXB-LHR: 3rd of 4 (Europe)
12: LHR-MAD: 4th of 4 (Europe)
13: MAD-TFS: 5th of 4 (Europe)
Rule violated!!!! [MAD-TFS] Max 4 segment(s): Europe
1 serious error detected. This is likely to be an invalid itinerary (27177 miles)