| base | record | name | ip | reverse | route | as |
| mbox.contact.bg | a | 212.39.90.60 | mbox.contact.bg | 212.39.90.0/24 Bulgarian Telecommunications Company Plc. | AS8866 BTC AS Bulgarian Telecommunication Company Plc BULGARIA | |
| 212.39.90.61 | web.my.contact.bg | |||||
| ns | pns-pw.contact.bg | 212.39.90.101 | dsl-pw-ha1.btc-net.bg | |||
| sns-pw.contact.bg | 212.39.90.102 | dsl-pw-ha2.btc-net.bg | ||||
| mx | mbox.contact.bg | 212.39.90.60 | mbox.contact.bg | |||
| 212.39.90.61 | web.my.contact.bg | |||||
| *.contact.bg | a | 212.39.90.51 | sws-pri.btc-net.bg | |||
| contact.bg | a | 212.39.90.51 | sws-pri.btc-net.bg | |||
| ns | pns.contact.bg | 212.39.90.40 | sws-ha-1.btc-net.bg | |||
| sns.contact.bg | 212.39.90.41 | sws-ha-2.btc-net.bg | ||||
| mx | mg.btc-net.bg | 212.39.90.50 | sws-pub.btc-net.bg | |||
| 212.39.90.51 | sws-pri.btc-net.bg |
