Airport Regions starting with a

AD-07
AE-AZ
AE-DU
AE-FU
AE-RK
AE-SH
AE-UQ
AF-BAL
AF-BAM
AF-BDG
AF-BDS
AF-FRA
AF-FYB
AF-GHA
AF-GHO
AF-HEL
AF-HER
AF-JOW
AF-KAB
AF-KAN
AF-KAP
AF-KDZ
AF-LOW
AF-NAN
AF-NIM
AF-ORU
AF-PAR
AF-PIA
AF-PKA
AF-SAM
AF-TAK
AG-03
AG-10
AI-U-A
AL-BR
AL-GJ
AL-KO
AL-KU
AL-LE
AL-TR
AL-VL
AM-AV
AM-ER
AM-GR
AM-LO
AM-SH
AM-SU
AM-TV
AM-VD
AO-BGO
AO-BGU
AO-BIE
AO-CAB
AO-CCU
AO-CNN
AO-CNO
AO-CUS
AO-HUA
AO-HUI
AO-LNO
AO-LSU
AO-LUA
AO-MAL
AO-MOX
AO-NAM
AO-UIG
AO-ZAI
AQ-U-A
AR-A
AR-B
AR-C
AR-D
AR-E
AR-F
AR-G
AR-H
AR-J
AR-K
AR-L
AR-M
AR-N
AR-P
AR-Q
AR-R
AR-S
AR-T
AR-U
AR-V
AR-W
AR-X
AR-Y
AR-Z
AS-U-A
AT-1
AT-2
AT-3
AT-4
AT-5
AT-6
AT-7
AT-8
AT-9
AT-U-A
AU-ACT
AU-NSW
AU-NT
AU-QLD
AU-SA
AU-TAS
AU-U-A
AU-VIC
AU-WA
AW-U-A
AZ-AGA
AZ-AGC
AZ-AGM
AZ-AGS
AZ-BA
AZ-BAL
AZ-BIL
AZ-FUZ
AZ-GA
AZ-GOR
AZ-GOY
AZ-HAC
AZ-KUR
AZ-LA
AZ-MAS
AZ-NX
AZ-QAB
AZ-SA
AZ-SAL
AZ-SKR
AZ-SM
AZ-XAC
AZ-XCI
AZ-XIZ
AZ-YE
AZ-ZAQ