Area Code +31-45-(3020000...3020999) located in Heerlen, Limburg (LI), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 45 Subscriber Number From : 3020000 Subscriber Number To : 3020999 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 : Belcentrale.nl B.V. Click here to buy Netherlands Area Code Database Other Information Language Code : nl (Dutch) Country Number : 528 (Netherlands) Country Code : NL (Netherlands) Region Code : LI Region Name : Limburg City : Heerlen Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 50.8800 Longitude : 5.9800 ‹ previous : +31-45-(3011000...3019999) next › : +31-45-(3030000...3030999) Dialling Instructions For trunk calls: 0 45 3020000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 45 3020000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3020000 ~ 3020999 (Count: 1,000) Example: +31-45-3020000 / 0031-45-3020000 (045-3020000 / 0-45-3020000) +31-45-3020001 / 0031-45-3020001 (045-3020001 / 0-45-3020001) +31-45-3020002 / 0031-45-3020002 (045-3020002 / 0-45-3020002) +31-45-3020003 / 0031-45-3020003 (045-3020003 / 0-45-3020003) +31-45-3020004 / 0031-45-3020004 (045-3020004 / 0-45-3020004) ...+31-45-xxxxxxx / 0031-45-xxxxxxx (045-xxxxxxx / 0-45-xxxxxxx) ...+31-45-3020995 / 0031-45-3020995 (045-3020995 / 0-45-3020995) +31-45-3020996 / 0031-45-3020996 (045-3020996 / 0-45-3020996) +31-45-3020997 / 0031-45-3020997 (045-3020997 / 0-45-3020997) +31-45-3020998 / 0031-45-3020998 (045-3020998 / 0-45-3020998) +31-45-3020999 / 0031-45-3020999 (045-3020999 / 0-45-3020999)