Area Code +81-42-(2020000...2029999) 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 : 2020000 Subscriber Number To : 2029999 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 : KDDI 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-(2010000...2019999) next › : +81-42-(2070000...2079999) Dialling Instructions For trunk calls: 0 42 2020000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 42 2020000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2020000 ~ 2029999 (Count: 10,000) Example: +81-42-2020000 / 01081-42-2020000 (042-2020000 / 0-42-2020000) +81-42-2020001 / 01081-42-2020001 (042-2020001 / 0-42-2020001) +81-42-2020002 / 01081-42-2020002 (042-2020002 / 0-42-2020002) +81-42-2020003 / 01081-42-2020003 (042-2020003 / 0-42-2020003) +81-42-2020004 / 01081-42-2020004 (042-2020004 / 0-42-2020004) ...+81-42-xxxxxxx / 01081-42-xxxxxxx (042-xxxxxxx / 0-42-xxxxxxx) ...+81-42-2029995 / 01081-42-2029995 (042-2029995 / 0-42-2029995) +81-42-2029996 / 01081-42-2029996 (042-2029996 / 0-42-2029996) +81-42-2029997 / 01081-42-2029997 (042-2029997 / 0-42-2029997) +81-42-2029998 / 01081-42-2029998 (042-2029998 / 0-42-2029998) +81-42-2029999 / 01081-42-2029999 (042-2029999 / 0-42-2029999)