Area Code +351-251-(010000...019999) 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 : 010000 Subscriber Number To : 019999 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 : TMN - TELECOMUNICAÇÕES MÓVEIS NACIONAIS, SA 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-(000000...009999) next › : +351-251-(020000...029999) Dialling Instructions For trunk calls: - 251 010000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 251 010000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 010000 ~ 019999 (Count: 10,000) Example: +351-251-010000 / 00351-251-010000 (251-010000 / -251-010000) +351-251-010001 / 00351-251-010001 (251-010001 / -251-010001) +351-251-010002 / 00351-251-010002 (251-010002 / -251-010002) +351-251-010003 / 00351-251-010003 (251-010003 / -251-010003) +351-251-010004 / 00351-251-010004 (251-010004 / -251-010004) ...+351-251-xxxxxx / 00351-251-xxxxxx (251-xxxxxx / -251-xxxxxx) ...+351-251-019995 / 00351-251-019995 (251-019995 / -251-019995) +351-251-019996 / 00351-251-019996 (251-019996 / -251-019996) +351-251-019997 / 00351-251-019997 (251-019997 / -251-019997) +351-251-019998 / 00351-251-019998 (251-019998 / -251-019998) +351-251-019999 / 00351-251-019999 (251-019999 / -251-019999)