Area Code +351-251-(070000...079999) 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 : 070000 Subscriber Number To : 079999 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 : OPTIMUS - COMUNICAÇÕES, 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-(030000...039999) next › : +351-251-(090000...099999) Dialling Instructions For trunk calls: - 251 070000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 251 070000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 070000 ~ 079999 (Count: 10,000) Example: +351-251-070000 / 00351-251-070000 (251-070000 / -251-070000) +351-251-070001 / 00351-251-070001 (251-070001 / -251-070001) +351-251-070002 / 00351-251-070002 (251-070002 / -251-070002) +351-251-070003 / 00351-251-070003 (251-070003 / -251-070003) +351-251-070004 / 00351-251-070004 (251-070004 / -251-070004) ...+351-251-xxxxxx / 00351-251-xxxxxx (251-xxxxxx / -251-xxxxxx) ...+351-251-079995 / 00351-251-079995 (251-079995 / -251-079995) +351-251-079996 / 00351-251-079996 (251-079996 / -251-079996) +351-251-079997 / 00351-251-079997 (251-079997 / -251-079997) +351-251-079998 / 00351-251-079998 (251-079998 / -251-079998) +351-251-079999 / 00351-251-079999 (251-079999 / -251-079999)