I was looking at some of the places were I have spotted various airlines/aircrafts, and have noticed that some of these places are duplicated:

FLL 969 FLL 31 MIA 155 OTT 39 BCT 34 DCA 33 IAD 30 ATL 29 ATL 29 JFK 20 OPF 17 XMU 15 MSY 11 HAM 9 HWO 8 FRA 7 MXP 6 OPF 6 OFF 5 OFF 4

As you c an see above FLL, ATL, OFF each show 2 separate listings. How do I get these combined in to 1 listing, and what causes the double listing. Is using your cellphone and the internet browser different then using a regular PC/Tablet/laptop.

thanks