The names of all the IP addresses in 81.228.11.0/24
81.228.11.1se-dh-ns107.fre.nis.telia.net.
81.228.11.3se-dh-ns108.fre.nis.telia.net.
81.228.11.5se-dh-ns109.fre.nis.telia.net.
81.228.11.7se-dh-ns110.fre.nis.telia.net.
81.228.11.9se-ntp-00.fre.ref.nis.telia.net.
81.228.11.11se-ntp-01.fre.nis.telia.net.
81.228.11.65bastion1-sn1.fre.skanova.net.
81.228.11.66ntp1-1-sn1.fre.skanova.net.
81.228.11.67dns1.telia.com.
81.228.11.68dns5.telia.com.
81.228.11.69dns-ddos-sn1.fre.skanova.net.
81.228.11.70ntp1-2-sn1.fre.skanova.net.
81.228.11.71ntp1-3-sn1.fre.skanova.net.
81.228.11.72infradnshosting1-sn1.fre.skanova.net.
81.228.11.75t-ns03-sn1.fre.skanova.net.
81.228.11.76av-out1-sn1.fre.skanova.net.
81.228.11.77as-out1-sn1.fre.skanova.net.
81.228.11.78s1.teliadns.se.
81.228.11.80pne-smtpout1b-sn1.fre.skanova.net.
81.228.11.81pne-msproxy1b-sn1.fre.skanova.net.
81.228.11.82bastion3-sn1.fre.skanova.net.
81.228.11.83pne-ps5-2-sn1.fre.skanova.net.
81.228.11.84dnshosting6-sn1.fre.skanova.net.
81.228.11.85dnshosting7-sn1.fre.skanova.net.
81.228.11.90ntp2-sn1.fre.skanova.net.
81.228.11.92se-ns-mgda01.fre.skanova.net.
81.228.11.93se-loghost03.fre.skanova.net.
81.228.11.94se-archive3.fre.skanova.net.
81.228.11.96pne-msproxy3b-sn1.fre.skanova.net.
81.228.11.97pne-msproxy3-sn1.fre.skanova.net.
81.228.11.100s05.dh.teliadns.se.
81.228.11.101av12-1-sn1.fre.skanova.net.
81.228.11.102av12-2-sn1.fre.skanova.net.
81.228.11.103smtp1-1-sn1.fre.skanova.net.
81.228.11.104smtp1-2-sn1.fre.skanova.net.
81.228.11.105smtp2-1-sn1.fre.skanova.net.
81.228.11.106smtp2-2-sn1.fre.skanova.net.
81.228.11.107av1-1-sn1.fre.skanova.net.
81.228.11.108av1-2-sn1.fre.skanova.net.
81.228.11.109av3-1-sn1.fre.skanova.net.
81.228.11.110av3-2-sn1.fre.skanova.net.
81.228.11.111av5-1-sn1.fre.skanova.net.
81.228.11.112av5-2-sn1.fre.skanova.net.
81.228.11.113av7-1-sn1.fre.skanova.net.
81.228.11.114av7-2-sn1.fre.skanova.net.
81.228.11.115av9-1-sn1.fre.skanova.net.
81.228.11.116av9-2-sn1.fre.skanova.net.
81.228.11.117av11-1-sn1.fre.skanova.net.
81.228.11.118av11-2-sn1.fre.skanova.net.
81.228.11.119pne-smtpout3b-sn1.fre.skanova.net.
81.228.11.120bastion2-sn1.fre.skanova.net.
81.228.11.123snr1-311-sn1.fre.skanova.net.
81.228.11.124snr2-311-sn1.fre.skanova.net.
81.228.11.126vip1-gw-311-sn1.fre.skanova.net.
81.228.11.129glb1-sn1.fre.skanova.net.
81.228.11.130snr1-312-sn1.fre.skanova.net.
81.228.11.131skb1-sn1.fre.skanova.net.
81.228.11.132skb-db1-sn1.fre.skanova.net.
81.228.11.133snr2-312-sn1.fre.skanova.net.
81.228.11.135as-out2-sn1.fre.skanova.net.
81.228.11.142pne-msproxy2b-sn1.fre.skanova.net.
81.228.11.143wh-http1-sn1.fre.skanova.net.
81.228.11.147dns-master2-sn1.fre.skanova.net.
81.228.11.148i-dns1.telia.com.
81.228.11.149i-res11-sn1.fre.skanova.net.
81.228.11.150tas-web2-sn1.fre.skanova.net.
81.228.11.153se-be-res1.fre.nis.telia.net.
81.228.11.154dns-log1-sn95.fre.skanova.net.
81.228.11.155dns-aggregator1-sn95.fre.skanova.net.
81.228.11.158rms1-sn1.fre.skanova.net.
81.228.11.163smtp3-1-sn1.fre.skanova.net.
81.228.11.165smtp4-1-sn1.fre.skanova.net.
81.228.11.168dnshosting2-sn1.fre.skanova.net.
81.228.11.169pne-smtpout4b-sn1.fre.skanova.net.
81.228.11.174dnshosting1-sn1.fre.skanova.net.
81.228.11.179pne-smtpout2b-sn1.fre.skanova.net.
81.228.11.180pne-pabproxy1b-sn1.fre.skanova.net.
81.228.11.182lncas1-sn1.fre.skanova.net.
81.228.11.183m09.dh.teliadns.se.
81.228.11.184dns9.telia.com.
81.228.11.185pne-ps6-2-sn1.fre.skanova.net.
81.228.11.189resolver2-sn1.fre.skanova.net.
81.228.11.190vip1-gw-312-sn1.fre.skanova.net.
81.228.11.193archive-ext1-sn1.fre.skanova.net.
81.228.11.195archive2-sn1.fre.skanova.net.
81.228.11.196snr1-316-sn1.fre.skanova.net.
81.228.11.197snr2-316-sn1.fre.skanova.net.
81.228.11.198vip1-gw-316-sn1.fre.skanova.net.
81.228.11.209vip1-gw-313-sn1.fre.skanova.net.
81.228.11.210llb1-313-sn1.fre.skanova.net.
81.228.11.211llb2-313-sn1.fre.skanova.net.
81.228.11.254snr1-sn1.fre.skanova.net.
81.228.11.255snr2-sn1.fre.skanova.net.
93 IP addresses in 81.228.11.0/24 appear to have a name (Pointer Record).
81.228.11.67   !ip !rdap !whois !bl !scan !tr !dnstr !g !gsec
  
___________   ____________________
           \ |
            \|

       ___________
      /           \
     /      |      \
    /_ _____________\
       | [_] [_] |
       \         /
        |  ___  |
        \  \_/  /
         \     /
       /IPDUHUDPI\