Area Code +31-517-(770000...779999) located in Franeker, Fryslân (FR), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 517 Subscriber Number From : 770000 Subscriber Number To : 779999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : BT NEDERLAND N.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 : FR Region Name : Fryslân City : Franeker Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 53.1900 Longitude : 5.5400 ‹ previous : +31-517-(769000...769999) next › : +31-517-(780000...780999) Dialling Instructions For trunk calls: 0 517 770000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 517 770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 770000 ~ 779999 (Count: 10,000) Example: +31-517-770000 / 0031-517-770000 (0517-770000 / 0-517-770000) +31-517-770001 / 0031-517-770001 (0517-770001 / 0-517-770001) +31-517-770002 / 0031-517-770002 (0517-770002 / 0-517-770002) +31-517-770003 / 0031-517-770003 (0517-770003 / 0-517-770003) +31-517-770004 / 0031-517-770004 (0517-770004 / 0-517-770004) ...+31-517-xxxxxx / 0031-517-xxxxxx (0517-xxxxxx / 0-517-xxxxxx) ...+31-517-779995 / 0031-517-779995 (0517-779995 / 0-517-779995) +31-517-779996 / 0031-517-779996 (0517-779996 / 0-517-779996) +31-517-779997 / 0031-517-779997 (0517-779997 / 0-517-779997) +31-517-779998 / 0031-517-779998 (0517-779998 / 0-517-779998) +31-517-779999 / 0031-517-779999 (0517-779999 / 0-517-779999)