Area Code +81-438-(880000...889999) 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 : 880000 Subscriber Number To : 889999 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 : Softbank Mobile 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-(800000...809999) next › : +81-438-(900000...909999) Dialling Instructions For trunk calls: 0 438 880000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 438 880000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 880000 ~ 889999 (Count: 10,000) Example: +81-438-880000 / 01081-438-880000 (0438-880000 / 0-438-880000) +81-438-880001 / 01081-438-880001 (0438-880001 / 0-438-880001) +81-438-880002 / 01081-438-880002 (0438-880002 / 0-438-880002) +81-438-880003 / 01081-438-880003 (0438-880003 / 0-438-880003) +81-438-880004 / 01081-438-880004 (0438-880004 / 0-438-880004) ...+81-438-xxxxxx / 01081-438-xxxxxx (0438-xxxxxx / 0-438-xxxxxx) ...+81-438-889995 / 01081-438-889995 (0438-889995 / 0-438-889995) +81-438-889996 / 01081-438-889996 (0438-889996 / 0-438-889996) +81-438-889997 / 01081-438-889997 (0438-889997 / 0-438-889997) +81-438-889998 / 01081-438-889998 (0438-889998 / 0-438-889998) +81-438-889999 / 01081-438-889999 (0438-889999 / 0-438-889999)