Area Code +34-810-(023400...023499) located in Madrid, Madrid (M), more detail is as below. Place International Dialing Code : 34 International Prefix : 00 National Destination Code : 810 Subscriber Number From : 023400 Subscriber Number To : 023499 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 : Madrid Timezone : Europe/Madrid Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 40.4200 Longitude : -3.7000 ‹ previous : +34-810-(023300...023399) next › : +34-810-(023500...023599) Dialling Instructions For trunk calls: - 810 023400 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 34 810 023400 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 023400 ~ 023499 (Count: 100) Example: +34-810-023400 / 0034-810-023400 (810-023400 / -810-023400) +34-810-023401 / 0034-810-023401 (810-023401 / -810-023401) +34-810-023402 / 0034-810-023402 (810-023402 / -810-023402) +34-810-023403 / 0034-810-023403 (810-023403 / -810-023403) +34-810-023404 / 0034-810-023404 (810-023404 / -810-023404) ...+34-810-xxxxxx / 0034-810-xxxxxx (810-xxxxxx / -810-xxxxxx) ...+34-810-023495 / 0034-810-023495 (810-023495 / -810-023495) +34-810-023496 / 0034-810-023496 (810-023496 / -810-023496) +34-810-023497 / 0034-810-023497 (810-023497 / -810-023497) +34-810-023498 / 0034-810-023498 (810-023498 / -810-023498) +34-810-023499 / 0034-810-023499 (810-023499 / -810-023499)