Area Code +81-438-(600000...609999) 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 : 600000 Subscriber Number To : 609999 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-(550000...559999) next › : +81-438-(620000...629999) Dialling Instructions For trunk calls: 0 438 600000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 438 600000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 600000 ~ 609999 (Count: 10,000) Example: +81-438-600000 / 01081-438-600000 (0438-600000 / 0-438-600000) +81-438-600001 / 01081-438-600001 (0438-600001 / 0-438-600001) +81-438-600002 / 01081-438-600002 (0438-600002 / 0-438-600002) +81-438-600003 / 01081-438-600003 (0438-600003 / 0-438-600003) +81-438-600004 / 01081-438-600004 (0438-600004 / 0-438-600004) ...+81-438-xxxxxx / 01081-438-xxxxxx (0438-xxxxxx / 0-438-xxxxxx) ...+81-438-609995 / 01081-438-609995 (0438-609995 / 0-438-609995) +81-438-609996 / 01081-438-609996 (0438-609996 / 0-438-609996) +81-438-609997 / 01081-438-609997 (0438-609997 / 0-438-609997) +81-438-609998 / 01081-438-609998 (0438-609998 / 0-438-609998) +81-438-609999 / 01081-438-609999 (0438-609999 / 0-438-609999)