Area Code +41-77-(4000000...4009999) located in Mobile Telephony GSM, more detail is as below. Place International Dialing Code : 41 International Prefix : 00 National Prefix : 0 National Destination Code : 77 Subscriber Number From : 4000000 Subscriber Number To : 4009999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : M (Mobile, Cellular) Carrier Name : Swisscom (Schweiz) AG Click here to buy Switzerland Area Code Database Other Information Language Code : fr (French) Country Number : 756 (Switzerland) Country Code : CH (Switzerland) City : Mobile Telephony GSM Timezone : Europe/Zurich Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 47.3700 Longitude : 8.5400 ‹ previous : +41-77-(3160000...3169999) next › : +41-77-(4010000...4019999) Dialling Instructions For trunk calls: 0 77 4000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 41 77 4000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4000000 ~ 4009999 (Count: 10,000) Example: +41-77-4000000 / 0041-77-4000000 (077-4000000 / 0-77-4000000) +41-77-4000001 / 0041-77-4000001 (077-4000001 / 0-77-4000001) +41-77-4000002 / 0041-77-4000002 (077-4000002 / 0-77-4000002) +41-77-4000003 / 0041-77-4000003 (077-4000003 / 0-77-4000003) +41-77-4000004 / 0041-77-4000004 (077-4000004 / 0-77-4000004) ...+41-77-xxxxxxx / 0041-77-xxxxxxx (077-xxxxxxx / 0-77-xxxxxxx) ...+41-77-4009995 / 0041-77-4009995 (077-4009995 / 0-77-4009995) +41-77-4009996 / 0041-77-4009996 (077-4009996 / 0-77-4009996) +41-77-4009997 / 0041-77-4009997 (077-4009997 / 0-77-4009997) +41-77-4009998 / 0041-77-4009998 (077-4009998 / 0-77-4009998) +41-77-4009999 / 0041-77-4009999 (077-4009999 / 0-77-4009999)