WWW.RTSAK.COM - 50.1.6.139.in-addr.arpa
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50.1.6.139.in-addr.arpa checked at 2025-10-02T19:21:20.431Z 477ms 16/16/16 100% R:1450.1.6.139.in-addr.arpa
| PTR | lvs-smtpgate4.nz.fh-koeln.de | ||||||
| A | 139.6.1.50🇩🇪 DFN Deutsches Forschungsnetz e.V. | ||||||
| PTR | lvs-smtpgate4.nz.fh-koeln.de | ||||||
1.6.139.in-addr.arpa
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