All Skymasters by Country

A2- Botswana
AP- Pakistan
C- Canada
CC- Chile
CS- Portugal
CX- Uruguay
D- Germany
EC- Spain
EI- Ireland
F- France
G- United Kingdom
HA- Hungary
HB- Switzerland
I- Italy
JA- Japan
LN- Norway
N USA with 1 number
N USA with 2 numbers
N USA with 3 numbers
N USA with 4 numbers
N USA with 5 numbers
OB- Peru
OE- Austria
OH- Finland
OO- Belgium
OY- Denmark
PH- Netherlands
SE- Sweden
SX- Greece
VH- Australia
ZK- New Zealand

Still to come

B-H Hong Kong
C5- Gambia
CP- Bolivia
CR- Portugal
DQ- Fiji
EL-
EP- Iran
ET- Ethiopia
HC- Ecuador
HI- Domincan Republic
HK- Columbia
HL- Republic of Korea
HR- Honduras
HS- Thailand
J5- Guinea-Bissau
LQ- LV- Argentina
P2- Papua New Guinea
PI-
PJ- Netherlands Antilles
PK- Indonesia
PT- Brazil
PZ- Suriname
RA- Russia
RP- Philippines
ST- Sudan
SU- Egypt
TF- Iceland
TG- Guatemala
TI- Costa Rica
TL- Central African Republic
TN- Congo
TR- Gabon
TT- Chad
TU- Cote d'Ivoire
TY- Benin
VP-G Gibraltar
VP-W
VP-Y
VQ-L Virgin Islands
VR-C
VR-H
VT- India
XA- XB- XC- Mexico
XT- Burkina Faso
XU- Cambodia
YS- El Salvador
YV- Venezuela
Z- Zimbabwe
ZP- Paraguay
ZS- ZU- South Africa
4X- Israel
5A- Libya
5B- Cyprus
5H- Tanzania
5R- Madagascar
5T- Mauritania
5U- Niger
5V- Togo
5Y- Kenya
6W- Senegal
6Y- Jamaica
7P- Lesotho
7Q- Malawi
8R- Guyana
9J- Zambia
9Q- DR Congo
9V- Singapore
9XR- Rwanda