Area Code +351-275-(100000...109999) located in Covilhã, Castelo Branco (05), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 275 Subscriber Number From : 100000 Subscriber Number To : 109999 National Destination Code Length : 3 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 : 05 Region Name : Castelo Branco City : Covilhã Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 40.2800 Longitude : -7.5000 ‹ previous : +351-275-(090000...099999) next › : +351-275-(120000...129999) Dialling Instructions For trunk calls: - 275 100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 275 100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 100000 ~ 109999 (Count: 10,000) Example: +351-275-100000 / 00351-275-100000 (275-100000 / -275-100000) +351-275-100001 / 00351-275-100001 (275-100001 / -275-100001) +351-275-100002 / 00351-275-100002 (275-100002 / -275-100002) +351-275-100003 / 00351-275-100003 (275-100003 / -275-100003) +351-275-100004 / 00351-275-100004 (275-100004 / -275-100004) ...+351-275-xxxxxx / 00351-275-xxxxxx (275-xxxxxx / -275-xxxxxx) ...+351-275-109995 / 00351-275-109995 (275-109995 / -275-109995) +351-275-109996 / 00351-275-109996 (275-109996 / -275-109996) +351-275-109997 / 00351-275-109997 (275-109997 / -275-109997) +351-275-109998 / 00351-275-109998 (275-109998 / -275-109998) +351-275-109999 / 00351-275-109999 (275-109999 / -275-109999)