Area Code +81-439-(530000...539999) 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 : 530000 Subscriber Number To : 539999 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-(520000...529999) next › : +81-439-(540000...549999) Dialling Instructions For trunk calls: 0 439 530000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 439 530000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 530000 ~ 539999 (Count: 10,000) Example: +81-439-530000 / 01081-439-530000 (0439-530000 / 0-439-530000) +81-439-530001 / 01081-439-530001 (0439-530001 / 0-439-530001) +81-439-530002 / 01081-439-530002 (0439-530002 / 0-439-530002) +81-439-530003 / 01081-439-530003 (0439-530003 / 0-439-530003) +81-439-530004 / 01081-439-530004 (0439-530004 / 0-439-530004) ...+81-439-xxxxxx / 01081-439-xxxxxx (0439-xxxxxx / 0-439-xxxxxx) ...+81-439-539995 / 01081-439-539995 (0439-539995 / 0-439-539995) +81-439-539996 / 01081-439-539996 (0439-539996 / 0-439-539996) +81-439-539997 / 01081-439-539997 (0439-539997 / 0-439-539997) +81-439-539998 / 01081-439-539998 (0439-539998 / 0-439-539998) +81-439-539999 / 01081-439-539999 (0439-539999 / 0-439-539999)