Area Code +351-21-(1510000...1519999) located in Lisboa, Lisboa (11), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 21 Subscriber Number From : 1510000 Subscriber Number To : 1519999 National Destination Code Length : 2 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 : 11 Region Name : Lisboa City : Lisboa Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 38.7100 Longitude : -9.1400 ‹ previous : +351-21-(1500000...1509999) next › : +351-21-(1520000...1529999) Dialling Instructions For trunk calls: - 21 1510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 21 1510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1510000 ~ 1519999 (Count: 10,000) Example: +351-21-1510000 / 00351-21-1510000 (21-1510000 / -21-1510000) +351-21-1510001 / 00351-21-1510001 (21-1510001 / -21-1510001) +351-21-1510002 / 00351-21-1510002 (21-1510002 / -21-1510002) +351-21-1510003 / 00351-21-1510003 (21-1510003 / -21-1510003) +351-21-1510004 / 00351-21-1510004 (21-1510004 / -21-1510004) ...+351-21-xxxxxxx / 00351-21-xxxxxxx (21-xxxxxxx / -21-xxxxxxx) ...+351-21-1519995 / 00351-21-1519995 (21-1519995 / -21-1519995) +351-21-1519996 / 00351-21-1519996 (21-1519996 / -21-1519996) +351-21-1519997 / 00351-21-1519997 (21-1519997 / -21-1519997) +351-21-1519998 / 00351-21-1519998 (21-1519998 / -21-1519998) +351-21-1519999 / 00351-21-1519999 (21-1519999 / -21-1519999)