| Base | Record | Name | IP | Reverse | Route | AS |
| ns3.harfa.net | a | 89.176.96.240 Czech Republic | (none) | 89.176.0.0/16 | AS6830 UPC Broadband UPC provides broadband ISP services in Austria, Netherlands, Czech Republic Ireland, Romania, Switzerland, Poland, Slovak Republic and Hungary |
| harfa.net | ns-soa | ns.harfa.net | 82.119.255.2 Czech Republic | ns.lantanet.cz | 82.119.240.0/20 Dial Telecom CZ | AS29208 DIALTELECOM-AS Dial Telecom, a.s. AMS-IX, LINX DeCIX, KleyReX NIX.CZ SIX.SK |
| ns | ns.harfa.net | 82.119.255.2 Czech Republic | ns.lantanet.cz |
| ns2.harfa.net | 193.86.86.2 Czech Republic | ns.pravo.cz | 193.86.0.0/16 CZNET-A | AS2819 GTSCZ GTS NOVERA (GTS CZ) e-mail: ip-noc@gts.cz |
| ns3.harfa.net | 89.176.96.240 Czech Republic | (none) | 89.176.0.0/16 | AS6830 UPC Broadband UPC provides broadband ISP services in Austria, Netherlands, Czech Republic Ireland, Romania, Switzerland, Poland, Slovak Republic and Hungary |
| mx | 10 | mbox.lantanet.cz | 82.119.255.3 Czech Republic | 82.119.240.0/20 Dial Telecom CZ | AS29208 DIALTELECOM-AS Dial Telecom, a.s. AMS-IX, LINX DeCIX, KleyReX NIX.CZ SIX.SK |