Area Code +351-21-(1530000...1539999) 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 : 1530000 Subscriber Number To : 1539999 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-(1520000...1529999) next › : +351-21-(1540000...1549999) Dialling Instructions For trunk calls: - 21 1530000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 21 1530000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1530000 ~ 1539999 (Count: 10,000) Example: +351-21-1530000 / 00351-21-1530000 (21-1530000 / -21-1530000) +351-21-1530001 / 00351-21-1530001 (21-1530001 / -21-1530001) +351-21-1530002 / 00351-21-1530002 (21-1530002 / -21-1530002) +351-21-1530003 / 00351-21-1530003 (21-1530003 / -21-1530003) +351-21-1530004 / 00351-21-1530004 (21-1530004 / -21-1530004) ...+351-21-xxxxxxx / 00351-21-xxxxxxx (21-xxxxxxx / -21-xxxxxxx) ...+351-21-1539995 / 00351-21-1539995 (21-1539995 / -21-1539995) +351-21-1539996 / 00351-21-1539996 (21-1539996 / -21-1539996) +351-21-1539997 / 00351-21-1539997 (21-1539997 / -21-1539997) +351-21-1539998 / 00351-21-1539998 (21-1539998 / -21-1539998) +351-21-1539999 / 00351-21-1539999 (21-1539999 / -21-1539999)