Postal prefix explorer
Japan codes starting with “1”
8,536 distinct postal codes match this prefix in the active snapshot.
100-0000Chiyoda Ku1 source records100-0001Chiyoda1 source records100-0002Kokyogaien1 source records100-0003Hitotsubashi(1-Chome)1 source records100-0004Otemachi (Tsuginobiruonozoku)1 source records100-0005Marunochi (Tsuginobiruonozoku)1 source records100-0006Yurakucho1 source records100-0011Uchisaiwaicho1 source records100-0012Hibiyakoen1 source records100-0013Kasumigaseki (Tsuginobiruonozoku)1 source records100-0014Nagatacho (Tsuginobiruonozoku)1 source records100-0100Oshima Machi1 source records100-0101Motomachi1 source records100-0102Okata1 source records100-0103Senzu1 source records100-0104Nomashi1 source records100-0211Sashikiji1 source records100-0212Habuminato1 source records100-0301Toshimamuraichien1 source records100-0400Niijima Mura1 source records100-0401Wakago1 source records100-0402Honson1 source records100-0511Shikinejima1 source records100-0601Kozushimamuraichien1 source records100-2100Ogasawara Mura1 source records100-2101Chichijima1 source records100-2211Hahajima1 source records100-6001Kasumigaseki Kasumigasekibiru(1-Kai1 source records100-6002Kasumigaseki Kasumigasekibiru(2-Kai1 source records100-6003Kasumigaseki Kasumigasekibiru(3-Kai1 source records100-6004Kasumigaseki Kasumigasekibiru(4-Kai1 source records100-6005Kasumigaseki Kasumigasekibiru(5-Kai1 source records100-6006Kasumigaseki Kasumigasekibiru(6-Kai1 source records100-6007Kasumigaseki Kasumigasekibiru(7-Kai1 source records100-6008Kasumigaseki Kasumigasekibiru(8-Kai1 source records100-6009Kasumigaseki Kasumigasekibiru(9-Kai1 source records100-6010Kasumigaseki Kasumigasekibiru(10-Ka1 source records100-6011Kasumigaseki Kasumigasekibiru(11-Ka1 source records100-6012Kasumigaseki Kasumigasekibiru(12-Ka1 source records100-6013Kasumigaseki Kasumigasekibiru(13-Ka1 source records100-6014Kasumigaseki Kasumigasekibiru(14-Ka1 source records100-6015Kasumigaseki Kasumigasekibiru(15-Ka1 source records100-6016Kasumigaseki Kasumigasekibiru(16-Ka1 source records100-6017Kasumigaseki Kasumigasekibiru(17-Ka1 source records100-6018Kasumigaseki Kasumigasekibiru(18-Ka1 source records100-6019Kasumigaseki Kasumigasekibiru(19-Ka1 source records100-6020Kasumigaseki Kasumigasekibiru(20-Ka1 source records100-6021Kasumigaseki Kasumigasekibiru(21-Ka1 source records100-6022Kasumigaseki Kasumigasekibiru(22-Ka1 source records100-6023Kasumigaseki Kasumigasekibiru(23-Ka1 source records100-6024Kasumigaseki Kasumigasekibiru(24-Ka1 source records100-6025Kasumigaseki Kasumigasekibiru(25-Ka1 source records100-6026Kasumigaseki Kasumigasekibiru(26-Ka1 source records100-6027Kasumigaseki Kasumigasekibiru(27-Ka1 source records100-6028Kasumigaseki Kasumigasekibiru(28-Ka1 source records100-6029Kasumigaseki Kasumigasekibiru(29-Ka1 source records100-6030Kasumigaseki Kasumigasekibiru(30-Ka1 source records100-6031Kasumigaseki Kasumigasekibiru(31-Ka1 source records100-6032Kasumigaseki Kasumigasekibiru(32-Ka1 source records100-6033Kasumigaseki Kasumigasekibiru(33-Ka1 source records