Area Code +34-810-(021700...021799) located in Collado-Villalba, Madrid (M), more detail is as below. Place International Dialing Code : 34 International Prefix : 00 National Destination Code : 810 Subscriber Number From : 021700 Subscriber Number To : 021799 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : BT ESPAÑA COMPAÑÍA DE SERVICIOS GLOBALES DE TELECOMUNICACIONES, S.A. UNIPERSONAL Click here to buy Spain Area Code Database Other Information Language Code : es (Spanish) Country Number : 724 (Spain) Country Code : ES (Spain) Region Code : M Region Name : Madrid City : Collado-Villalba Timezone : Europe/Madrid Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 40.6300 Longitude : -4.0100 ‹ previous : +34-810-(021600...021699) next › : +34-810-(021800...021899) Dialling Instructions For trunk calls: - 810 021700 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 34 810 021700 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 021700 ~ 021799 (Count: 100) Example: +34-810-021700 / 0034-810-021700 (810-021700 / -810-021700) +34-810-021701 / 0034-810-021701 (810-021701 / -810-021701) +34-810-021702 / 0034-810-021702 (810-021702 / -810-021702) +34-810-021703 / 0034-810-021703 (810-021703 / -810-021703) +34-810-021704 / 0034-810-021704 (810-021704 / -810-021704) ...+34-810-xxxxxx / 0034-810-xxxxxx (810-xxxxxx / -810-xxxxxx) ...+34-810-021795 / 0034-810-021795 (810-021795 / -810-021795) +34-810-021796 / 0034-810-021796 (810-021796 / -810-021796) +34-810-021797 / 0034-810-021797 (810-021797 / -810-021797) +34-810-021798 / 0034-810-021798 (810-021798 / -810-021798) +34-810-021799 / 0034-810-021799 (810-021799 / -810-021799)