The german phone code 02304 represents Schwerte in Nordrhein-Westfalen.
Schwerte
Different spellings of the Phone Code 02304
02304
(02304)
02304-
02304/
+492304
+49 (2304)
+49-2304
+49 (0) 2304
00492304
0049 (0) 2304
Calling from abroad to Schwerte
Note for calls from abroad: In addition to the German country code (+49 or 0049) you can omit the foregoing zero of the dialling code for Schwerte. So you can dial +492304... and add the number of the phone line you want to reach.
Wich place is a "must see" for a tourist in Schwerte?