Area Code +81-423-(030000...039999) located in Kokubunji, Tokyo (13), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 423 Subscriber Number From : 030000 Subscriber Number To : 039999 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 Communications 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 : +81-423-(020000...029999) next › : +81-423-(040000...049999) Dialling Instructions For trunk calls: 0 423 030000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 423 030000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 030000 ~ 039999 (Count: 10,000) Example: +81-423-030000 / 01081-423-030000 (0423-030000 / 0-423-030000) +81-423-030001 / 01081-423-030001 (0423-030001 / 0-423-030001) +81-423-030002 / 01081-423-030002 (0423-030002 / 0-423-030002) +81-423-030003 / 01081-423-030003 (0423-030003 / 0-423-030003) +81-423-030004 / 01081-423-030004 (0423-030004 / 0-423-030004) ...+81-423-xxxxxx / 01081-423-xxxxxx (0423-xxxxxx / 0-423-xxxxxx) ...+81-423-039995 / 01081-423-039995 (0423-039995 / 0-423-039995) +81-423-039996 / 01081-423-039996 (0423-039996 / 0-423-039996) +81-423-039997 / 01081-423-039997 (0423-039997 / 0-423-039997) +81-423-039998 / 01081-423-039998 (0423-039998 / 0-423-039998) +81-423-039999 / 01081-423-039999 (0423-039999 / 0-423-039999)
