Area Code +81-439-(320000...329999) located in Kisarazu, Chiba (12), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 439 Subscriber Number From : 320000 Subscriber Number To : 329999 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 : +81-439-(300000...309999) next › : +81-439-(330000...339999) Dialling Instructions For trunk calls: 0 439 320000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 439 320000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 320000 ~ 329999 (Count: 10,000) Example: +81-439-320000 / 01081-439-320000 (0439-320000 / 0-439-320000) +81-439-320001 / 01081-439-320001 (0439-320001 / 0-439-320001) +81-439-320002 / 01081-439-320002 (0439-320002 / 0-439-320002) +81-439-320003 / 01081-439-320003 (0439-320003 / 0-439-320003) +81-439-320004 / 01081-439-320004 (0439-320004 / 0-439-320004) ...+81-439-xxxxxx / 01081-439-xxxxxx (0439-xxxxxx / 0-439-xxxxxx) ...+81-439-329995 / 01081-439-329995 (0439-329995 / 0-439-329995) +81-439-329996 / 01081-439-329996 (0439-329996 / 0-439-329996) +81-439-329997 / 01081-439-329997 (0439-329997 / 0-439-329997) +81-439-329998 / 01081-439-329998 (0439-329998 / 0-439-329998) +81-439-329999 / 01081-439-329999 (0439-329999 / 0-439-329999)