DNSWHOIS.INFO - 4.21.17.84.in-addr.arpa
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4.21.17.84.in-addr.arpa checked at 2025-10-25T13:08:51.923Z 368ms 16/16/16 100% R:144.21.17.84.in-addr.arpa
| PTR | mail.avangard-mb.ru | ||||||
| A | 84.17.21.4🇷🇺 Mobile TeleSystems PJSC | ||||||
| PTR | mail.avangard-mb.ru | ||||||
21.17.84.in-addr.arpa
| NS | dns0.mts.ru | ||||||
| NS | dns1.mts.ru | ||||||
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