VATSpy addition covers areas:
1) Airports by ICAO code: O
OA - Afghanistan OB - Bahrain OE - Saudi Arabia OI - Iran< OJ - Jordan OK - Kuwait OL - Lebanon OM - United Arab Emirates OO - Oman OP - Pakistan OR - Iraq OS - Syria OT - Qatar OY - Yemen
2) Airports by ICAO code: R
RC - Taiwan RJ RO - Japan RK - South Korea
3) Airports by ICAO code: V
VA VE VI VO - India VA - Mumbai Center (VABF) VE - Kolkata Center (VECF) VI - Delhi Center (VIDF) VO - Chennai Center (VOMF) VC - Sri Lanka VD - Cambodia VG - Bangladesh VH - Hong Kong VL - Laos VM - Macau VN - Nepal VQ - Bhutan VR - Maldives VT - Thailand VV - Vietnam VY - Myanmar (Burma
4) Airports by ICAO code: Z
Mainland China ZB - ZG - ZH - ZJ - ZL - ZP - ZS - ZU - ZW - ZY - ZK - North Korea ZM - Mongolia