Area Code +351-21-(0310000...0319999) 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 : 0310000 Subscriber Number To : 0319999 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 : AR TELECOM - ACESSOS E REDES DE TELECOMUNICAÇÕES, 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-(0300000...0309999) next › : +351-21-(0320000...0329999) Dialling Instructions For trunk calls: - 21 0310000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 21 0310000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 0310000 ~ 0319999 (Count: 10,000) Example: +351-21-0310000 / 00351-21-0310000 (21-0310000 / -21-0310000) +351-21-0310001 / 00351-21-0310001 (21-0310001 / -21-0310001) +351-21-0310002 / 00351-21-0310002 (21-0310002 / -21-0310002) +351-21-0310003 / 00351-21-0310003 (21-0310003 / -21-0310003) +351-21-0310004 / 00351-21-0310004 (21-0310004 / -21-0310004) ...+351-21-xxxxxxx / 00351-21-xxxxxxx (21-xxxxxxx / -21-xxxxxxx) ...+351-21-0319995 / 00351-21-0319995 (21-0319995 / -21-0319995) +351-21-0319996 / 00351-21-0319996 (21-0319996 / -21-0319996) +351-21-0319997 / 00351-21-0319997 (21-0319997 / -21-0319997) +351-21-0319998 / 00351-21-0319998 (21-0319998 / -21-0319998) +351-21-0319999 / 00351-21-0319999 (21-0319999 / -21-0319999)