Area Code +81-331-(180000...189999) located in Tokyo, Tokyo (13), more detail is as below. Place International Dialing Code : 81 International Prefix : 010 National Prefix : 0 National Destination Code : 331 Subscriber Number From : 180000 Subscriber Number To : 189999 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 : Tokyo Telemessage 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 : Tokyo Timezone : Asia/Tokyo Coordinated Universal Time : +09:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : 35.6900 Longitude : 139.6900 ‹ previous : +81-331-(170000...179999) next › : +81-331-(200000...209999) Dialling Instructions For trunk calls: 0 331 180000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 010 81 331 180000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 180000 ~ 189999 (Count: 10,000) Example: +81-331-180000 / 01081-331-180000 (0331-180000 / 0-331-180000) +81-331-180001 / 01081-331-180001 (0331-180001 / 0-331-180001) +81-331-180002 / 01081-331-180002 (0331-180002 / 0-331-180002) +81-331-180003 / 01081-331-180003 (0331-180003 / 0-331-180003) +81-331-180004 / 01081-331-180004 (0331-180004 / 0-331-180004) ...+81-331-xxxxxx / 01081-331-xxxxxx (0331-xxxxxx / 0-331-xxxxxx) ...+81-331-189995 / 01081-331-189995 (0331-189995 / 0-331-189995) +81-331-189996 / 01081-331-189996 (0331-189996 / 0-331-189996) +81-331-189997 / 01081-331-189997 (0331-189997 / 0-331-189997) +81-331-189998 / 01081-331-189998 (0331-189998 / 0-331-189998) +81-331-189999 / 01081-331-189999 (0331-189999 / 0-331-189999)