Area Code +81-438-(550000...559999) located in Kisarazu, Chiba (12), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 438 Subscriber Number From : 550000 Subscriber Number To : 559999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : KDDI Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 12 Region Name : Chiba City : Kisarazu Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.3800 Longitude : 139.9200 ‹ previous : +81-438-(530000...539999) next › : +81-438-(600000...609999) Dialling Instructions For trunk calls: 0 438 550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 438 550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 550000 ~ 559999 (Count: 10,000) Example: +81-438-550000 / 01081-438-550000 (0438-550000 / 0-438-550000) +81-438-550001 / 01081-438-550001 (0438-550001 / 0-438-550001) +81-438-550002 / 01081-438-550002 (0438-550002 / 0-438-550002) +81-438-550003 / 01081-438-550003 (0438-550003 / 0-438-550003) +81-438-550004 / 01081-438-550004 (0438-550004 / 0-438-550004) ...+81-438-xxxxxx / 01081-438-xxxxxx (0438-xxxxxx / 0-438-xxxxxx) ...+81-438-559995 / 01081-438-559995 (0438-559995 / 0-438-559995) +81-438-559996 / 01081-438-559996 (0438-559996 / 0-438-559996) +81-438-559997 / 01081-438-559997 (0438-559997 / 0-438-559997) +81-438-559998 / 01081-438-559998 (0438-559998 / 0-438-559998) +81-438-559999 / 01081-438-559999 (0438-559999 / 0-438-559999)