Area Code +27-12-(5400000...5409999) located in WONDERBOOM, GAUTENG (GT), more detail is as below. Place International Dialing Code : 27 International Prefix : 00 National Prefix : 0 National Destination Code : 12 Subscriber Number From : 5400000 Subscriber Number To : 5409999 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 : Telkom SA Click here to buy South Africa Area Code Database Other Information Language Code : en (English) Country Number : 710 (South Africa) Country Code : ZA (South Africa) Region Code : GT Region Name : GAUTENG City : WONDERBOOM Timezone : Africa/Johannesburg Coordinated Universal Time : +02:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : -25.6900 Longitude : 28.2000 ‹ previous : +27-12-(5290000...5299999) next › : +27-12-(5410000...5419999) Dialling Instructions For trunk calls: 0 12 5400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 27 12 5400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5400000 ~ 5409999 (Count: 10,000) Example: +27-12-5400000 / 0027-12-5400000 (012-5400000 / 0-12-5400000) +27-12-5400001 / 0027-12-5400001 (012-5400001 / 0-12-5400001) +27-12-5400002 / 0027-12-5400002 (012-5400002 / 0-12-5400002) +27-12-5400003 / 0027-12-5400003 (012-5400003 / 0-12-5400003) +27-12-5400004 / 0027-12-5400004 (012-5400004 / 0-12-5400004) ...+27-12-xxxxxxx / 0027-12-xxxxxxx (012-xxxxxxx / 0-12-xxxxxxx) ...+27-12-5409995 / 0027-12-5409995 (012-5409995 / 0-12-5409995) +27-12-5409996 / 0027-12-5409996 (012-5409996 / 0-12-5409996) +27-12-5409997 / 0027-12-5409997 (012-5409997 / 0-12-5409997) +27-12-5409998 / 0027-12-5409998 (012-5409998 / 0-12-5409998) +27-12-5409999 / 0027-12-5409999 (012-5409999 / 0-12-5409999)