Area Code +351-255-(360000...369999) located in Penafiel, Porto (13), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 255 Subscriber Number From : 360000 Subscriber Number To : 369999 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 - 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 : 13 Region Name : Porto City : Penafiel Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 41.2100 Longitude : -8.2900 ‹ previous : +351-255-(340000...349999) next › : +351-255-(380000...389999) Dialling Instructions For trunk calls: - 255 360000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 255 360000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 360000 ~ 369999 (Count: 10,000) Example: +351-255-360000 / 00351-255-360000 (255-360000 / -255-360000) +351-255-360001 / 00351-255-360001 (255-360001 / -255-360001) +351-255-360002 / 00351-255-360002 (255-360002 / -255-360002) +351-255-360003 / 00351-255-360003 (255-360003 / -255-360003) +351-255-360004 / 00351-255-360004 (255-360004 / -255-360004) ...+351-255-xxxxxx / 00351-255-xxxxxx (255-xxxxxx / -255-xxxxxx) ...+351-255-369995 / 00351-255-369995 (255-369995 / -255-369995) +351-255-369996 / 00351-255-369996 (255-369996 / -255-369996) +351-255-369997 / 00351-255-369997 (255-369997 / -255-369997) +351-255-369998 / 00351-255-369998 (255-369998 / -255-369998) +351-255-369999 / 00351-255-369999 (255-369999 / -255-369999)