Area Code +31-33-(2023000...2023999) located in Amersfoort, Utrecht (UT), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 33 Subscriber Number From : 2023000 Subscriber Number To : 2023999 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 : Ziggo 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 : UT Region Name : Utrecht City : Amersfoort Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.1600 Longitude : 5.3900 ‹ previous : +31-33-(2022000...2022999) next › : +31-33-(2024000...2024999) Dialling Instructions For trunk calls: 0 33 2023000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 33 2023000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2023000 ~ 2023999 (Count: 1,000) Example: +31-33-2023000 / 0031-33-2023000 (033-2023000 / 0-33-2023000) +31-33-2023001 / 0031-33-2023001 (033-2023001 / 0-33-2023001) +31-33-2023002 / 0031-33-2023002 (033-2023002 / 0-33-2023002) +31-33-2023003 / 0031-33-2023003 (033-2023003 / 0-33-2023003) +31-33-2023004 / 0031-33-2023004 (033-2023004 / 0-33-2023004) ...+31-33-xxxxxxx / 0031-33-xxxxxxx (033-xxxxxxx / 0-33-xxxxxxx) ...+31-33-2023995 / 0031-33-2023995 (033-2023995 / 0-33-2023995) +31-33-2023996 / 0031-33-2023996 (033-2023996 / 0-33-2023996) +31-33-2023997 / 0031-33-2023997 (033-2023997 / 0-33-2023997) +31-33-2023998 / 0031-33-2023998 (033-2023998 / 0-33-2023998) +31-33-2023999 / 0031-33-2023999 (033-2023999 / 0-33-2023999)