Area Code +351-251-(030000...039999) 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 : 030000 Subscriber Number To : 039999 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 : ZON TV CABO PORTUGAL, 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-(020000...029999) next › : +351-251-(070000...079999) Dialling Instructions For trunk calls: - 251 030000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 251 030000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 030000 ~ 039999 (Count: 10,000) Example: +351-251-030000 / 00351-251-030000 (251-030000 / -251-030000) +351-251-030001 / 00351-251-030001 (251-030001 / -251-030001) +351-251-030002 / 00351-251-030002 (251-030002 / -251-030002) +351-251-030003 / 00351-251-030003 (251-030003 / -251-030003) +351-251-030004 / 00351-251-030004 (251-030004 / -251-030004) ...+351-251-xxxxxx / 00351-251-xxxxxx (251-xxxxxx / -251-xxxxxx) ...+351-251-039995 / 00351-251-039995 (251-039995 / -251-039995) +351-251-039996 / 00351-251-039996 (251-039996 / -251-039996) +351-251-039997 / 00351-251-039997 (251-039997 / -251-039997) +351-251-039998 / 00351-251-039998 (251-039998 / -251-039998) +351-251-039999 / 00351-251-039999 (251-039999 / -251-039999)