Area Code +351-21-(9100000...9109999) 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 : 9100000 Subscriber Number To : 9109999 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 : 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 : 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-(9010000...9019999) next › : +351-21-(9110000...9119999) Dialling Instructions For trunk calls: - 21 9100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 21 9100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 9100000 ~ 9109999 (Count: 10,000) Example: +351-21-9100000 / 00351-21-9100000 (21-9100000 / -21-9100000) +351-21-9100001 / 00351-21-9100001 (21-9100001 / -21-9100001) +351-21-9100002 / 00351-21-9100002 (21-9100002 / -21-9100002) +351-21-9100003 / 00351-21-9100003 (21-9100003 / -21-9100003) +351-21-9100004 / 00351-21-9100004 (21-9100004 / -21-9100004) ...+351-21-xxxxxxx / 00351-21-xxxxxxx (21-xxxxxxx / -21-xxxxxxx) ...+351-21-9109995 / 00351-21-9109995 (21-9109995 / -21-9109995) +351-21-9109996 / 00351-21-9109996 (21-9109996 / -21-9109996) +351-21-9109997 / 00351-21-9109997 (21-9109997 / -21-9109997) +351-21-9109998 / 00351-21-9109998 (21-9109998 / -21-9109998) +351-21-9109999 / 00351-21-9109999 (21-9109999 / -21-9109999)