Area Code +81-4-(20090000...20099999) located in Tokorozawa, Saitama (11), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 4 Subscriber Number From : 20090000 Subscriber Number To : 20099999 National Destination Code Length : 1 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 : 11 Region Name : Saitama City : Tokorozawa Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.8000 Longitude : 139.4700 ‹ previous : +81-4-(20080000...20089999) next › : +81-42-(2000000...2009999) Dialling Instructions For trunk calls: 0 4 20090000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 4 20090000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20090000 ~ 20099999 (Count: 10,000) Example: +81-4-20090000 / 01081-4-20090000 (04-20090000 / 0-4-20090000) +81-4-20090001 / 01081-4-20090001 (04-20090001 / 0-4-20090001) +81-4-20090002 / 01081-4-20090002 (04-20090002 / 0-4-20090002) +81-4-20090003 / 01081-4-20090003 (04-20090003 / 0-4-20090003) +81-4-20090004 / 01081-4-20090004 (04-20090004 / 0-4-20090004) ...+81-4-xxxxxxxx / 01081-4-xxxxxxxx (04-xxxxxxxx / 0-4-xxxxxxxx) ...+81-4-20099995 / 01081-4-20099995 (04-20099995 / 0-4-20099995) +81-4-20099996 / 01081-4-20099996 (04-20099996 / 0-4-20099996) +81-4-20099997 / 01081-4-20099997 (04-20099997 / 0-4-20099997) +81-4-20099998 / 01081-4-20099998 (04-20099998 / 0-4-20099998) +81-4-20099999 / 01081-4-20099999 (04-20099999 / 0-4-20099999)