Area Code +351-251-(240000...249999) located in Valença, Viana do Castelo (16), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 251 Subscriber Number From : 240000 Subscriber Number To : 249999 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 : PT PRIME – SOLUÇÕES EMPRESARIAIS DE TELECOMUNICAÇÕES E SISTEMAS, S.A. Click here to buy Portugal Area Code Database Other Information Language Code : pt (Portuguese) Country Number : 620 (Portugal) Country Code : PT (Portugal) Region Code : 16 Region Name : Viana do Castelo City : Valença Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 42.0200 Longitude : -8.6300 ‹ previous : +351-251-(150000...159999) next › : +351-251-(300000...309999) Dialling Instructions For trunk calls: - 251 240000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 251 240000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 240000 ~ 249999 (Count: 10,000) Example: +351-251-240000 / 00351-251-240000 (251-240000 / -251-240000) +351-251-240001 / 00351-251-240001 (251-240001 / -251-240001) +351-251-240002 / 00351-251-240002 (251-240002 / -251-240002) +351-251-240003 / 00351-251-240003 (251-240003 / -251-240003) +351-251-240004 / 00351-251-240004 (251-240004 / -251-240004) ...+351-251-xxxxxx / 00351-251-xxxxxx (251-xxxxxx / -251-xxxxxx) ...+351-251-249995 / 00351-251-249995 (251-249995 / -251-249995) +351-251-249996 / 00351-251-249996 (251-249996 / -251-249996) +351-251-249997 / 00351-251-249997 (251-249997 / -251-249997) +351-251-249998 / 00351-251-249998 (251-249998 / -251-249998) +351-251-249999 / 00351-251-249999 (251-249999 / -251-249999)