Area Code +81-439-(700000...709999) 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 : 700000 Subscriber Number To : 709999 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-(690000...699999) next › : +81-439-(710000...719999) Dialling Instructions For trunk calls: 0 439 700000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 439 700000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 700000 ~ 709999 (Count: 10,000) Example: +81-439-700000 / 01081-439-700000 (0439-700000 / 0-439-700000) +81-439-700001 / 01081-439-700001 (0439-700001 / 0-439-700001) +81-439-700002 / 01081-439-700002 (0439-700002 / 0-439-700002) +81-439-700003 / 01081-439-700003 (0439-700003 / 0-439-700003) +81-439-700004 / 01081-439-700004 (0439-700004 / 0-439-700004) ...+81-439-xxxxxx / 01081-439-xxxxxx (0439-xxxxxx / 0-439-xxxxxx) ...+81-439-709995 / 01081-439-709995 (0439-709995 / 0-439-709995) +81-439-709996 / 01081-439-709996 (0439-709996 / 0-439-709996) +81-439-709997 / 01081-439-709997 (0439-709997 / 0-439-709997) +81-439-709998 / 01081-439-709998 (0439-709998 / 0-439-709998) +81-439-709999 / 01081-439-709999 (0439-709999 / 0-439-709999)