Area Code +81-438-(400000...409999) 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 : 400000 Subscriber Number To : 409999 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 : NTT East 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-(380000...389999) next › : +81-438-(410000...419999) Dialling Instructions For trunk calls: 0 438 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 438 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 409999 (Count: 10,000) Example: +81-438-400000 / 01081-438-400000 (0438-400000 / 0-438-400000) +81-438-400001 / 01081-438-400001 (0438-400001 / 0-438-400001) +81-438-400002 / 01081-438-400002 (0438-400002 / 0-438-400002) +81-438-400003 / 01081-438-400003 (0438-400003 / 0-438-400003) +81-438-400004 / 01081-438-400004 (0438-400004 / 0-438-400004) ...+81-438-xxxxxx / 01081-438-xxxxxx (0438-xxxxxx / 0-438-xxxxxx) ...+81-438-409995 / 01081-438-409995 (0438-409995 / 0-438-409995) +81-438-409996 / 01081-438-409996 (0438-409996 / 0-438-409996) +81-438-409997 / 01081-438-409997 (0438-409997 / 0-438-409997) +81-438-409998 / 01081-438-409998 (0438-409998 / 0-438-409998) +81-438-409999 / 01081-438-409999 (0438-409999 / 0-438-409999)