In 2010 Russia started new structure prefixes for hamradio callsign. 
You can download latest CTY.dat with new data for you log programm from here

How I can find Kaliningrad on air?
Main 3 rules. Now Kaliningrad is:
1. all Russian U-prefix with number 2 (only prefix UA2 to UI2)
2. only one prefix "RA2" (for "R2" see rule 3)
3. all any Russian R-prefix with suffixes only 2F and 2K

Also Russian government passed a resolution for a administrative reform.
R9G: Komi-Permyatzkij Okrug (KP) merged into R9F, G. Permskij Krai (PM)
R8T: Usti-Ordinskij Buryatskij AO (UO) merged into R0S, T: Irkutskaya Obl.
R8V: Aginsky Buryatsky AO (AB) merged with R0U: Chitinskaya Obl. (CT) and got the new name
R0U, V: Zabajkalskij Krai (ZK)
R0B: Taymyrsky AO (TM) and R0H: Evenkiyskiy AO (EV) merged with R0A,B,H: Krasnoyarsky Kraj (KK)
R0X: Koryaksky AO (KY) merged in R0X, Z: Kamchatskaya Kraj (KT)
These changes can be found in the RDA data base from Mar 1,2010.

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The Table of new structure prefixes of Russia since 2010
Russian original documents here 
Example: from table R1A may be all UA1A-UI1A, RA1A-RZ1A, excepting special prefixes RB, RE, RH, RI, RP, RR, RS. Kalinigrad only ALL RA2?, UA2-UI2, all R?2F, all R?2K. 

PFX	Name		WAZ	ITU		UTC Offset	Latitude	Longitude	Sunrise	Sunset
R1A, R1B, R1D, R1F, R1G, R1J, R1L, R1M	Saint-Petersburg	SP	16	29	EU	3	59.60	-30.30	4:23:00	15:53:00
R1C	Leningradskaya obl.	LO	16	29	EU	3	59.60	-30.30	4:23:00	15:53:00
R1N	Karelia	KL	16	19	EU	3	61.80	-34.40	4:08:00	15:35:00
R1O	Arkhangelskaya obl.	AR	16	19	EU	3	64.30	-40.30	3:46:00	15:10:00
R1P	Nenetsky AO	NO	16	20	EU	3	67.80	-53.10	3:39:00	14:56:00
R1Q, R1R, R1S	Vologodskaya obl.	VO	16	29	EU	3	59.10	-39.90	3:44:00	15:15:00
R1T	Novgorodskaya obl.	NV	16	29	EU	3	58.30	-31.30	4:18:00	15:50:00
R1W	Pskovskaya obl.	PS	16	29	EU	3	57.50	-28.30	4:30:00	16:02:00
R1Z	Murmanskaya obl.	MU	16	19	EU	3	68.80	-33.50	4:18:00	15:32:00
R2F, R2K, All RA2A-RA2Z, All UA2?-UI2?	Kaliningradskaya obl.	KA	15	29	EU	2	55.10	-20.50	5:00:00	16:35:00
R2A, R2B, R2C, R3A, R3B, R3C, R5A, R5B, R5C, except all RA2, UA2-UI2	Moscow city	MA	16	29	EU	3	55.50	-38.20	3:49:00	15:23:00
R2D, R3D, R3F, R2H, R3H, R5D, R5F, R5H, except all RA2, UA2-UI2	Moskovskaya obl.	MO	16	29	EU	3	55.50	-38.20	3:49:00	15:23:00
R2E, R3E, R5E, except all RA2, UA2-UI2	Orlovskaya obl.	OR	16	29	EU	3	52.60	-46.10	3:16:00	14:53:00
R2G, R3G, R5G, except all RA2, UA2-UI2	Lipetskaya obl.	LP	16	29	EU	3	52.40	-39.60	3:42:00	15:19:00
R2I, R3I, R5I, except all RA2, UA2-UI2	Tverskaya obl.	TV	16	29	EU	3	56.50	-35.90	3:59:00	15:32:00
R2L, R3L, R5L, except all RA2, UA2-UI2	Smolenskaya obl.	SM	16	29	EU	3	54.50	-32.10	4:13:00	15:48:00
R2M, R3M, R5M, except all RA2, UA2-UI2	Yaroslavskaya obl.	YR	16	29	EU	3	57.40	-39.90	3:43:00	15:16:00
R2N, R3N, R5N, except all RA2, UA2-UI2	Kostromskaya obl.	KS	16	29	EU	3	57.50	-40.90	3:39:00	15:12:00
R2P, R3P, R5P, except all RA2, UA2-UI2	Tulskaya obl.	TL	16	29	EU	3	54.10	-37.60	3:51:00	15:27:00
R2Q, R3K, R2O, R3Q, R3O, R5K, R5O, R5Q, except all RA2, UA2-UI2	Voronezhskaya obl.	VR	16	29	EU	3	51.40	-39.20	3:43:00	15:21:00
R2R, R3R, R5R, except all RA2, UA2-UI2	Tambovskaya obl.	TB	16	29	EU	3	52.40	-41.50	3:34:00	15:12:00
R2S, R3S, R5S, except all RA2, UA2-UI2	Ryazanskaya obl.	RA	16	29	EU	3	54.40	-39.80	3:42:00	15:18:00
R2T, R3T, R5T, except all RA2, UA2-UI2	Nizhegorodskaya obl.	NN	16	29	EU	3	56.20	-44.10	3:26:00	15:00:00
R2U, R3U, R5U, except all RA2, UA2-UI2	Ivanovskaya obl.	IV	16	29	EU	3	57.10	-41.10	3:38:00	15:11:00
R2V, R3V, R5V, except all RA2, UA2-UI2	Vladimirskaya obl.	VL	16	29	EU	3	56.10	-40.40	3:40:00	15:14:00
R2W, R3W, R5W, except all RA2, UA2-UI2	Kurskaya obl.	KU	16	29	EU	3	51.40	-36.20	3:55:00	15:33:00
R2X, R3X, R5X except all RA2, UA2-UI2	Kaluzhskaya obl.	KG	16	29	EU	3	54.30	-36.30	3:56:00	15:32:00
R2Y, R3Y, R5Y, except all RA2, UA2-UI2	Bryanskaya obl.	BR	16	29	EU	3	53.20	-34.30	4:04:00	15:40:00
R2Z, R3Z, R5Z, except all RA2, UA2-UI2	Belgorodskaya obl.	BO	16	29	EU	3	50.40	-36.70	3:53:00	15:32:00
R4A, R4B	Volgogradskaya obl.	VG	16	29	EU	3	48.40	-44.50	3:21:00	15:01:00
R4C, R4D	Saratovskaya obl.	SA	16	29	EU	3	51.30	-46.10	3:16:00	14:54:00
R4F	Penzenskaya obl.	PE	16	29	EU	3	53.10	-45.10	3:21:00	14:57:00
R4H, R4I	Samarskaya obl.	SR	16	30	EU	3	53.10	-50.10	3:00:00	14:37:00
R4L, R4M	Ulyanovskaya obl.	UL	16	29	EU	3	54.20	-48.40	3:08:00	14:43:00
R4N, R4O	Kirovskaya obl.	KI	16	29	EU	3	58.40	-49.70	3:04:00	14:36:00
R4P, R4Q, R4R	Tatarstan	TA	16	29	EU	3	55.50	-49.10	3:05:00	14:40:00
R4S, R4T	Mary-El	MR	16	29	EU	3	56.60	-47.90	3:11:00	14:44:00
R4U	Mordoviya	MD	16	29	EU	3	54.10	-45.20	3:20:00	14:56:00
R4W	Udmurtiya	UD	16	30	EU	4	57.10	-52.10	2:54:00	14:27:00
R4Y, R4Z	Chuvashiya	CU	16	29	EU	3	56.80	-47.10	3:14:00	14:47:00
R6A, R6B, R6C, R6D, R7A, R7B, R7C, R7D	Krasnodarskiy krai	KR	16	29	EU	3	45.10	-39.10	3:42:00	15:24:00
R6E, R7E	Karachaevo-Cherkessia	KC	16	29	EU	4	43.80	-41.80	3:30:00	15:13:00
R6H, R6F, R6G, R7H, R7F, R7G	Stavropolsky krai	ST	16	29	EU	4	45.20	-41.90	3:30:00	15:13:00
R6I, R7I	Kalmykiya	KM	16	29	EU	3	46.20	-44.20	3:21:00	15:03:00
R6J, R7J	Severnaya Osetiya	SO	16	29	EU	4	43.10	-44.70	3:18:00	15:02:00
R6K, R7K	Rep of Crimea	RK	16	29	EU	3	44.57	-34.53
R6L, R6M, R6N, R6O, R7L, R7M, R7N	Rostovskaya obl.	RO	16	29	EU	3	47.10	-39.70	3:40:00	15:21:00
R6P, R7P	Chechnya	CN	16	29	EU	3	43.20	-44.80	3:18:00	15:02:00
R6Q, R7Q	Ingushetiya	IN	16	29	EU	3	43.20	-44.80	3:18:00	15:02:00
R6R, R7R	Sevastopol	SE	16	29	EU	3	44.36	-33.31
R6U, R7U	Astrakhanskaya obl.	AO	16	29	EU	3	46.20	-48.10	3:06:00	14:48:00
R6W, R7W	Dagestan	DA	16	29	EU	3	43.10	-47.60	3:07:00	14:50:00
R6X, R7X	Kabardino-Balkariya	KB	16	29	EU	3	43.70	-43.80	3:22:00	15:05:00
R6Y, R7Y	Adygeya	AD	16	29	EU	3	44.40	-40.10	3:37:00	15:20:00
R8A, R8B, R9A, R9B	Chelyabinskaya obl.	CB	17	30	AS	6	55.10	-61.20	2:17:00	13:52:00
R8C, R8D, R9C, R9D, R9E	Sverdlovskaya obl.	SV	17	30	AS	5	56.50	-60.60	2:20:00	13:53:00
R8F, R8G, R9F, R9G	Permsky krai	PM	17	30	AS	5	58.10	-56.30	2:38:00	14:10:00
R8H, R8I, R9H, R9I	Tomskaya obl.	TO	18	31	AS	7	56.30	-84.90	0:43:00	12:16:00
R8J, R9J	Hanty-Mansiysky AO	HM	17	20	AS	5	61.10	-69.10	1:49:00	13:17:00
R8K, R9K	Yamalo-Nenetsky AO	YN	17	20	AS	5	66.70	-66.50	2:03:00	13:23:00
R8L, R9L	Tyumenskaya obl.	TN	17	30	AS	5	57.10	-65.50	2:01:00	13:33:00
R8M, R8N, R9M, R9N	Omskaya obl.	OM	17	30	AS	6	54.60	-73.40	1:28:00	13:03:00
R8O, R9O, R9P	Novosibirskaya obl.	NS	18	31	AS	6	54.50	-83.10	0:49:00	12:25:00
R8Q, R8R, R9Q, R9R	Kurganskaya obl.	KN	17	30	AS	5	55.60	-65.20	2:01:00	13:35:00
R8S, R8T, R9S, R9T	Orenburgskaya obl.	OB	16	30	AS	5	51.50	-55.10	2:40:00	14:18:00
R8U, R9U, R9V	Kemerovskaya obl.	KE	18	31	AS	7	55.20	-86.10	0:38:00	12:12:00
R8W, R9W	Bashkortostan	BA	16	30	AS	5	54.40	-55.90	2:38:00	14:13:00
R8X, R9X	Komi	KO	16	20	AS	5	61.70	-51.10	3:01:00	14:29:00
R8Y, R9Y	Altaysky krai	AL	18	31	AS	6	53.20	-83.80	0:46:00	12:22:00
R8Z, R9Z	Altai	GA	18	31	AS	7	51.90	-86.10	0:36:00	12:14:00
R0A	Krasnoyarsky krai	KK	18	32	AS	7	56.10	-83.20	0:09:00	11:43:00
R0B	Taymyrsky AO	TM	18	22	AS	7	69.30	-86.20	0:47:00	12:01:00
R0C	Khabarovsky krai	HK	19	33	AS	10	48.30	-135.10	21:18:00	8:59:00
R0D	Evreyskaya obl.	EA	19	33	AS	10	48.80	-132.80	21:28:00	9:08:00
R0F, R0E	Sakhalinskaya obl.	SL	19	34	AS	11	46.90	-142.50	20:48:00	8:30:00
R0H	Evenkiyskiy AO	EV	18	22	AS	10	64.50	-100.80	23:44:00	11:07:00
R0I	Magadanskaya obl.	MG	19	24	AS	11	59.30	-150.80	20:21:00	7:51:00
R0J	Amurskaya obl.	AM	19	33	AS	9	50.20	-127.60	21:49:00	9:28:00
R0K	Chukotsky AO	CK	19	25	AS	12	64.50	-177.30	18:38:00	6:01:00
R0L, R0M, R0N	Primorsky krai	PK	19	34	AS	10	43.10	-131.90	21:30:00	9:13:00
R0O	Buryatiya	BU	18	32	AS	8	51.90	-107.80	23:09:00	10:47:00
R0Q	Saha	YA	19	23	AS	9	62.10	-129.80	21:46:00	9:13:00
R0S, R0T	Irkutskaya obl.	IR	18	32	AS	8	52.20	-104.30	23:23:00	11:01:00
R0U	Chitinskaya obl.	CT	18	32	AS	8	52.30	-113.30	22:47:00	10:25:00
R0W	Hakassiya	HA	18	31	AS	7	53.60	-91.10	0:17:00	11:53:00
R0X	Koryaksky AO	KY	19	25	AS	12	59.30	-160.10	19:44:00	7:14:00
R0Y	Tuva	TU	23	32	AS	7	51.40	-94.30	0:03:00	11:41:00
R0Z	Kamchatskaya obl.	KT	19	35	AS	12	53.10	-157.70	21:43:00	5:12:00
R1AN , RI1ANA-RI1ANZ	Antarctica	AN	13	69	AN	4	62.120	-58.560
R1FJ, RI1FJ, RI1FJA-RI1FJZ	Franz Josef Land	FJ	40	75	EU	3	80.130	-56.20	3:30:00	14:23:00
R1MV, RI1MV, RI1MVA-RI1MVZ	Malyj Vysotskij Isl.	MV	16	19	EU	3	60.380	-28.340	4:22:00	16:03:00

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