Area Code +81-42-(3010000...3019999) located in Kokubunji, Tokyo (13), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 42 Subscriber Number From : 3010000 Subscriber Number To : 3019999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Jupiter Telecommunications Click here to buy Japan Area Code Database Other Information Language Code : ja (Japanese) Country Number : 392 (Japan) Country Code : JP (Japan) Region Code : 13 Region Name : Tokyo City : Kokubunji Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.7200 Longitude : 139.4700 ‹ previous : +81-42-(3000000...3009999) next › : +81-42-(3020000...3029999) Dialling Instructions For trunk calls: 0 42 3010000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 42 3010000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3010000 ~ 3019999 (Count: 10,000) Example: +81-42-3010000 / 01081-42-3010000 (042-3010000 / 0-42-3010000) +81-42-3010001 / 01081-42-3010001 (042-3010001 / 0-42-3010001) +81-42-3010002 / 01081-42-3010002 (042-3010002 / 0-42-3010002) +81-42-3010003 / 01081-42-3010003 (042-3010003 / 0-42-3010003) +81-42-3010004 / 01081-42-3010004 (042-3010004 / 0-42-3010004) ...+81-42-xxxxxxx / 01081-42-xxxxxxx (042-xxxxxxx / 0-42-xxxxxxx) ...+81-42-3019995 / 01081-42-3019995 (042-3019995 / 0-42-3019995) +81-42-3019996 / 01081-42-3019996 (042-3019996 / 0-42-3019996) +81-42-3019997 / 01081-42-3019997 (042-3019997 / 0-42-3019997) +81-42-3019998 / 01081-42-3019998 (042-3019998 / 0-42-3019998) +81-42-3019999 / 01081-42-3019999 (042-3019999 / 0-42-3019999)