Territory The name of area Oblast №

UU1-UU8, UU0 Crimea, Simferopol KR

UU9 Sevastopol SL

Oblast determination by the 1st letter of suffix:
The name of area (oblast) Oblast №

A Sumy SU

B Ternopil TE

C Cherkasy CH

D Zakarpats'ka oblast, Uzhgorod ZA

E Dnipropetrovsk DN

F Odesa OD

G Kherson HE

H Poltava PO

I Donetsk DO

J Crimea KR, SL

K Rivne RI

L Kharkiv HA

M Lugansk LU

N Vinnitsya VI

O reserve -

P Volyns'ka oblast, Lutsk VO

Q Zaporizhya ZP

R Chernihiv CR

S Ivano-Frankivsk IF

T Khmelnitsky HM

U Kyiv city and Kyiv region KO, KV

V Kirovograd KI

W Lviv LV

X Zhitomir ZH

Y Chernivtsy CN

Z Mykolayv NI

Old prefixes with two-letter suffix (do not coincide with a suffix of area): UT5, UY5, UX5

UR-UZ:
one-lettter suffix – contest calls
two-letter suffix 1st (highest) license category
three-letter suffix 2nd,3rd,4th license categories
second letter of three-letter suffix W-Z club stations