Area Code +34-810-(021800...021899) 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 : 021800 Subscriber Number To : 021899 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-(021700...021799) next › : +34-810-(021900...021999) Dialling Instructions For trunk calls: - 810 021800 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 34 810 021800 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 021800 ~ 021899 (Count: 100) Example: +34-810-021800 / 0034-810-021800 (810-021800 / -810-021800) +34-810-021801 / 0034-810-021801 (810-021801 / -810-021801) +34-810-021802 / 0034-810-021802 (810-021802 / -810-021802) +34-810-021803 / 0034-810-021803 (810-021803 / -810-021803) +34-810-021804 / 0034-810-021804 (810-021804 / -810-021804) ...+34-810-xxxxxx / 0034-810-xxxxxx (810-xxxxxx / -810-xxxxxx) ...+34-810-021895 / 0034-810-021895 (810-021895 / -810-021895) +34-810-021896 / 0034-810-021896 (810-021896 / -810-021896) +34-810-021897 / 0034-810-021897 (810-021897 / -810-021897) +34-810-021898 / 0034-810-021898 (810-021898 / -810-021898) +34-810-021899 / 0034-810-021899 (810-021899 / -810-021899)