Area Code +81-439-(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 : 439 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 : 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-(870000...879999) next › : +81-439-(900000...909999) Dialling Instructions For trunk calls: 0 439 880000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 439 880000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 880000 ~ 889999 (Count: 10,000) Example: +81-439-880000 / 01081-439-880000 (0439-880000 / 0-439-880000) +81-439-880001 / 01081-439-880001 (0439-880001 / 0-439-880001) +81-439-880002 / 01081-439-880002 (0439-880002 / 0-439-880002) +81-439-880003 / 01081-439-880003 (0439-880003 / 0-439-880003) +81-439-880004 / 01081-439-880004 (0439-880004 / 0-439-880004) ...+81-439-xxxxxx / 01081-439-xxxxxx (0439-xxxxxx / 0-439-xxxxxx) ...+81-439-889995 / 01081-439-889995 (0439-889995 / 0-439-889995) +81-439-889996 / 01081-439-889996 (0439-889996 / 0-439-889996) +81-439-889997 / 01081-439-889997 (0439-889997 / 0-439-889997) +81-439-889998 / 01081-439-889998 (0439-889998 / 0-439-889998) +81-439-889999 / 01081-439-889999 (0439-889999 / 0-439-889999)