Postcode areas 38XXX
- Postcode area 38100 Braunschweig
- Postcode area 38102 Braunschweig
- Postcode area 38104 Braunschweig
- Postcode area 38106 Braunschweig
- Postcode area 38108 Braunschweig
- Postcode area 38110 Braunschweig
- Postcode area 38112 Braunschweig
- Postcode area 38114 Braunschweig
- Postcode area 38116 Braunschweig
- Postcode area 38118 Braunschweig
- Postcode area 38120 Braunschweig
- Postcode area 38122 Braunschweig
- Postcode area 38124 Braunschweig
- Postcode area 38126 Braunschweig
- Postcode area 38154 Königslutter am Elm
- Postcode area 38159 Vechelde
- Postcode area 38162 Cremlingen
- Postcode area 38165 Lehre
- Postcode area 38170 Schöppenstedt
- Postcode area 38173 Sickte, Dettum u.a.
- Postcode area 38176 Wendeburg
- Postcode area 38179 Schwülper
- Postcode area 38226 Salzgitter
- Postcode area 38228 Salzgitter
- Postcode area 38229 Salzgitter
- Postcode area 38239 Salzgitter
- Postcode area 38259 Salzgitter
- Postcode area 38268 Lengede
- Postcode area 38271 Baddeckenstedt
- Postcode area 38272 Burgdorf
- Postcode area 38274 Elbe
- Postcode area 38275 Haverlah
- Postcode area 38277 Heere
- Postcode area 38279 Sehlde
- Postcode area 38300 Wolfenbüttel
- Postcode area 38302 Wolfenbüttel
- Postcode area 38304 Wolfenbüttel
- Postcode area 38312 Dorstadt, Flöthe, Börßum u.a.
- Postcode area 38315 Schladen-Werla
- Postcode area 38319 Remlingen
- Postcode area 38321 Denkte
- Postcode area 38322 Hedeper
- Postcode area 38324 Kissenbrück
- Postcode area 38325 Roklum
- Postcode area 38327 Semmenstedt
- Postcode area 38329 Wittmar
- Postcode area 38350 Helmstedt
- Postcode area 38364 Schöningen
- Postcode area 38368 Rennau, Querenhorst, Mariental, Grasleben
- Postcode area 38372 Büddenstedt
- Postcode area 38373 Süpplingen, Frellstedt
- Postcode area 38375 Räbke
- Postcode area 38376 Süpplingenburg
- Postcode area 38378 Warberg
- Postcode area 38379 Wolsdorf
- Postcode area 38381 Jerxheim
- Postcode area 38382 Beierstedt
- Postcode area 38384 Gevensleben
- Postcode area 38387 Söllingen
- Postcode area 38440 Wolfsburg
- Postcode area 38442 Wolfsburg
- Postcode area 38444 Wolfsburg
- Postcode area 38446 Wolfsburg
- Postcode area 38448 Wolfsburg
- Postcode area 38458 Velpke
- Postcode area 38459 Bahrdorf
- Postcode area 38461 Danndorf
- Postcode area 38462 Grafhorst
- Postcode area 38464 Groß Twülpstedt
- Postcode area 38465 Brome
- Postcode area 38467 Bergfeld
- Postcode area 38468 Ehra-Lessien
- Postcode area 38470 Parsau
- Postcode area 38471 Rühen
- Postcode area 38473 Tiddische
- Postcode area 38474 Tülau
- Postcode area 38476 Barwedel
- Postcode area 38477 Jembke
- Postcode area 38479 Tappenbeck
- Postcode area 38486 Klötze, Apenburg-Winterfeld
- Postcode area 38489 Beetzendorf, Rohrberg, Jübar
- Postcode area 38518 Gifhorn
- Postcode area 38524 Sassenburg
- Postcode area 38527 Meine
- Postcode area 38528 Adenbüttel
- Postcode area 38530 Didderse
- Postcode area 38531 Rötgesbüttel
- Postcode area 38533 Vordorf
- Postcode area 38536 Meinersen
- Postcode area 38539 Müden (Aller)
- Postcode area 38542 Leiferde
- Postcode area 38543 Hillerse
- Postcode area 38547 Calberlah
- Postcode area 38550 Isenbüttel
- Postcode area 38551 Ribbesbüttel
- Postcode area 38553 Wasbüttel
- Postcode area 38554 Weyhausen
- Postcode area 38556 Bokensdorf
- Postcode area 38557 Osloß
- Postcode area 38559 Wagenhoff, Ringelah
- Postcode area 38640 Goslar
- Postcode area 38642 Goslar
- Postcode area 38644 Goslar
- Postcode area 38667 Bad Harzburg, Torfhaus
- Postcode area 38678 Clausthal-Zellerfeld, Oberschulenberg
- Postcode area 38685 Langelsheim
- Postcode area 38690 Goslar
- Postcode area 38700 Braunlage
- Postcode area 38704 Liebenburg
- Postcode area 38707 Altenau, Schulenberg
- Postcode area 38709 Wildemann
- Postcode area 38723 Seesen
- Postcode area 38729 Hahausen, Lutter, Wallmoden
- Postcode area 38820 Halberstadt
- Postcode area 38822 Halberstadt, Groß Quenstedt
- Postcode area 38828 Wegeleben
- Postcode area 38829 Harsleben
- Postcode area 38835 Osterwieck
- Postcode area 38836 Badersleben u.a.
- Postcode area 38838 Huy
- Postcode area 38855 Wernigerode, Nordharz
- Postcode area 38871 Ilsenburg, Nordharz
- Postcode area 38875 Oberharz am Brocken
- Postcode area 38877 Oberharz am Brocken
- Postcode area 38879 Wernigerode
- Postcode area 38889 Blankenburg, Oberharz am Brocken
- Postcode area 38895 Langenstein, Derenburg
- Postcode area 38899 Oberharz am Brocken