Area Code +81-42-(3090000...3099999) 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 : 3090000 Subscriber Number To : 3099999 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-(3080000...3089999) next › : +81-42-(3100000...3109999) Dialling Instructions For trunk calls: 0 42 3090000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 42 3090000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3090000 ~ 3099999 (Count: 10,000) Example: +81-42-3090000 / 01081-42-3090000 (042-3090000 / 0-42-3090000) +81-42-3090001 / 01081-42-3090001 (042-3090001 / 0-42-3090001) +81-42-3090002 / 01081-42-3090002 (042-3090002 / 0-42-3090002) +81-42-3090003 / 01081-42-3090003 (042-3090003 / 0-42-3090003) +81-42-3090004 / 01081-42-3090004 (042-3090004 / 0-42-3090004) ...+81-42-xxxxxxx / 01081-42-xxxxxxx (042-xxxxxxx / 0-42-xxxxxxx) ...+81-42-3099995 / 01081-42-3099995 (042-3099995 / 0-42-3099995) +81-42-3099996 / 01081-42-3099996 (042-3099996 / 0-42-3099996) +81-42-3099997 / 01081-42-3099997 (042-3099997 / 0-42-3099997) +81-42-3099998 / 01081-42-3099998 (042-3099998 / 0-42-3099998) +81-42-3099999 / 01081-42-3099999 (042-3099999 / 0-42-3099999)