Area Code +31-45-(5110000...5119999) 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 : 5110000 Subscriber Number To : 5119999 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 : KPN 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-(5100000...5109999) next › : +31-45-(5200000...5209999) Dialling Instructions For trunk calls: 0 45 5110000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 45 5110000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5110000 ~ 5119999 (Count: 10,000) Example: +31-45-5110000 / 0031-45-5110000 (045-5110000 / 0-45-5110000) +31-45-5110001 / 0031-45-5110001 (045-5110001 / 0-45-5110001) +31-45-5110002 / 0031-45-5110002 (045-5110002 / 0-45-5110002) +31-45-5110003 / 0031-45-5110003 (045-5110003 / 0-45-5110003) +31-45-5110004 / 0031-45-5110004 (045-5110004 / 0-45-5110004) ...+31-45-xxxxxxx / 0031-45-xxxxxxx (045-xxxxxxx / 0-45-xxxxxxx) ...+31-45-5119995 / 0031-45-5119995 (045-5119995 / 0-45-5119995) +31-45-5119996 / 0031-45-5119996 (045-5119996 / 0-45-5119996) +31-45-5119997 / 0031-45-5119997 (045-5119997 / 0-45-5119997) +31-45-5119998 / 0031-45-5119998 (045-5119998 / 0-45-5119998) +31-45-5119999 / 0031-45-5119999 (045-5119999 / 0-45-5119999)