Area Code +27-16-(3420000...3429999) located in HEIDELBERG(TVL), GAUTENG (GT), more detail is as below. Place International Dialing Code : 27 International Prefix : 00 National Prefix : 0 National Destination Code : 16 Subscriber Number From : 3420000 Subscriber Number To : 3429999 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 : HEIDELBERG(TVL) Timezone : Africa/Johannesburg Coordinated Universal Time : +02:00 Daylight Saving Time : No National Significant Number Minimum Length : 9 Latitude : -26.5000 Longitude : 28.3600 ‹ previous : +27-16-(3410000...3419999) next › : +27-16-(3430000...3439999) Dialling Instructions For trunk calls: 0 16 3420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 27 16 3420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3420000 ~ 3429999 (Count: 10,000) Example: +27-16-3420000 / 0027-16-3420000 (016-3420000 / 0-16-3420000) +27-16-3420001 / 0027-16-3420001 (016-3420001 / 0-16-3420001) +27-16-3420002 / 0027-16-3420002 (016-3420002 / 0-16-3420002) +27-16-3420003 / 0027-16-3420003 (016-3420003 / 0-16-3420003) +27-16-3420004 / 0027-16-3420004 (016-3420004 / 0-16-3420004) ...+27-16-xxxxxxx / 0027-16-xxxxxxx (016-xxxxxxx / 0-16-xxxxxxx) ...+27-16-3429995 / 0027-16-3429995 (016-3429995 / 0-16-3429995) +27-16-3429996 / 0027-16-3429996 (016-3429996 / 0-16-3429996) +27-16-3429997 / 0027-16-3429997 (016-3429997 / 0-16-3429997) +27-16-3429998 / 0027-16-3429998 (016-3429998 / 0-16-3429998) +27-16-3429999 / 0027-16-3429999 (016-3429999 / 0-16-3429999)