Area Code +381-721-(10030...10039) located in Machine to Machine Communications, more detail is as below. Place International Dialing Code : 381 International Prefix : 00 National Prefix : 0 National Destination Code : 721 Subscriber Number From : 10030 Subscriber Number To : 10039 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 8 Number Type : S (Special) Carrier Name : TELEKOM SRBIJA Click here to buy Serbia Area Code Database Other Information Language Code : sr (Serbian) Country Number : 688 (Serbia) Country Code : RS (Serbia) City : Machine to Machine Communications Timezone : Europe/Belgrade Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 44.8000 Longitude : 20.4700 ‹ previous : +381-721-(10020...10029) next › : +381-721-(10040...10049) Dialling Instructions For trunk calls: 0 721 10030 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 381 721 10030 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 10030 ~ 10039 (Count: 10) Example: +381-721-10030 / 00381-721-10030 (0721-10030 / 0-721-10030) +381-721-10031 / 00381-721-10031 (0721-10031 / 0-721-10031) +381-721-10032 / 00381-721-10032 (0721-10032 / 0-721-10032) +381-721-10033 / 00381-721-10033 (0721-10033 / 0-721-10033) +381-721-10034 / 00381-721-10034 (0721-10034 / 0-721-10034) ...+381-721-xxxxx / 00381-721-xxxxx (0721-xxxxx / 0-721-xxxxx) ...+381-721-10035 / 00381-721-10035 (0721-10035 / 0-721-10035) +381-721-10036 / 00381-721-10036 (0721-10036 / 0-721-10036) +381-721-10037 / 00381-721-10037 (0721-10037 / 0-721-10037) +381-721-10038 / 00381-721-10038 (0721-10038 / 0-721-10038) +381-721-10039 / 00381-721-10039 (0721-10039 / 0-721-10039)