Area Code +31-45-(5450000...5459999) 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 : 5450000 Subscriber Number To : 5459999 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-(5440000...5449999) next › : +31-45-(5460000...5469999) Dialling Instructions For trunk calls: 0 45 5450000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 45 5450000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5450000 ~ 5459999 (Count: 10,000) Example: +31-45-5450000 / 0031-45-5450000 (045-5450000 / 0-45-5450000) +31-45-5450001 / 0031-45-5450001 (045-5450001 / 0-45-5450001) +31-45-5450002 / 0031-45-5450002 (045-5450002 / 0-45-5450002) +31-45-5450003 / 0031-45-5450003 (045-5450003 / 0-45-5450003) +31-45-5450004 / 0031-45-5450004 (045-5450004 / 0-45-5450004) ...+31-45-xxxxxxx / 0031-45-xxxxxxx (045-xxxxxxx / 0-45-xxxxxxx) ...+31-45-5459995 / 0031-45-5459995 (045-5459995 / 0-45-5459995) +31-45-5459996 / 0031-45-5459996 (045-5459996 / 0-45-5459996) +31-45-5459997 / 0031-45-5459997 (045-5459997 / 0-45-5459997) +31-45-5459998 / 0031-45-5459998 (045-5459998 / 0-45-5459998) +31-45-5459999 / 0031-45-5459999 (045-5459999 / 0-45-5459999)