Area Code +351-22-(9100000...9109999) located in Porto, Porto (13), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 22 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 : RADIOMÓVEL - TELECOMUNICAÇÕES, SA 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 : Porto Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 41.1500 Longitude : -8.6100 ‹ previous : +351-22-(9060000...9069999) next › : +351-22-(9110000...9119999) Dialling Instructions For trunk calls: - 22 9100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 22 9100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 9100000 ~ 9109999 (Count: 10,000) Example: +351-22-9100000 / 00351-22-9100000 (22-9100000 / -22-9100000) +351-22-9100001 / 00351-22-9100001 (22-9100001 / -22-9100001) +351-22-9100002 / 00351-22-9100002 (22-9100002 / -22-9100002) +351-22-9100003 / 00351-22-9100003 (22-9100003 / -22-9100003) +351-22-9100004 / 00351-22-9100004 (22-9100004 / -22-9100004) ...+351-22-xxxxxxx / 00351-22-xxxxxxx (22-xxxxxxx / -22-xxxxxxx) ...+351-22-9109995 / 00351-22-9109995 (22-9109995 / -22-9109995) +351-22-9109996 / 00351-22-9109996 (22-9109996 / -22-9109996) +351-22-9109997 / 00351-22-9109997 (22-9109997 / -22-9109997) +351-22-9109998 / 00351-22-9109998 (22-9109998 / -22-9109998) +351-22-9109999 / 00351-22-9109999 (22-9109999 / -22-9109999)