Country Code : (+49)
SMS Messaging Centers :
Pannon Hungary +36-209300099
Westel900 +36-30-9888-000
Vodafone +36709996500
Cellular Operator :
+3620 - Pannon
+3630 - Westel 900 GSM
+3670 - Vodafone
You can send free sms to Hungary from many sites some of them are
http://www.branchenbuch.ch/sms
sms to hungary
sms.ru