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IPv4 root -> 221/8 -> 221.0.0.0/8

Summary for subnet 221.0.0.0/8

IP-range/subnet221.0.0.0-221.255.255.255
LocationAsia/Pacific Region (AP) ap flag
Registryapnic
Number of domains hosted94,259
Number of nameservers hosted2,875
Number of mailservers hosted21,839
Number of SPAM hosts hosted982
Number of IDN domains hosted150
Number of domains in Alexa top million570
Number of IP routes1,628

Subnets based on RIR allocations

SubnetDescriptionRIRCountry#routes#domains#spamhosts
221.0.0.0/15China Unicom Shandong province networkapnicCN154239
221.2.0.0/16China Unicom Shandong province networkapnicCN166016
221.3.0.0/17China Unicom Shandong province networkapnicCN1534
221.3.128.0/17China Unicom Yunnan province networkapnicCN1863
221.4.0.0/16China Unicom Guangdong province networkapnicCN2333511
221.5.0.0/17China Unicom Guangdong province networkapnicCN241921
221.5.128.0/17China Unicom Chongqing province networkapnicCN1342
221.6.0.0/16China Unicom Jiangsu province networkapnicCN146612
221.7.0.0/19China Unicom Xinjiang province networkapnicCN1312
221.7.32.0/19China Unicom Gansu province networkapnicCN1274
221.7.64.0/19China Unicom Chongqing province networkapnicCN1162
221.7.96.0/19China Unicom Chongqing province networkapnicCN1261
221.7.128.0/17China Unicom Guangxi province networkapnicCN12839
221.8.0.0/15China Unicom JILIN province networkapnicCN242312
221.10.0.0/16China Unicom SiChuan province networkapnicCN23523
221.11.0.0/17China Unicom Shannxi province networkapnicCN13637
221.11.128.0/18China Unicom Hainan province networkapnicCN1120
221.11.192.0/19China Unicom Hainan province networkapnicCN110
221.11.224.0/19NX-SZS-PPPOE-poolapnicCN101
221.12.0.0/17China Unicom Zhejiang province networkapnicCN13303
221.12.128.0/18China Unicom Zhejiang province networkapnicCN11108
221.12.192.0/18Energia Communications,Inc.apnicJP130
221.13.0.0/18China Unicom Guizhou province networkapnicCN1667
221.13.64.0/19China Unicom Xizang province networkapnicCN1172
221.13.96.0/19China Unicom Chongqing province networkapnicCN110
221.13.128.0/17China Unicom Henan Province NetworkapnicCN14654
221.14.0.0/15China Unicom Henan Province NetworkapnicCN119617
221.16.0.0/12Japan Nation-wide Network of Softbank CoapnicJP17250
221.32.0.0/11Japan Nation-wide Network of Softbank CoapnicJP33231
221.64.0.0/11Japan Nation-wide Network of Softbank CoapnicJP33150
221.96.0.0/12Japan Nation-wide Network of Softbank CoapnicJP17960
221.112.0.0/16UCOM CorporationapnicJP12910
221.113.0.0/16Asahi NetapnicJP21070
221.114.0.0/15broadgateapnicJP21431
221.116.0.0/14UCOM CorporationapnicJP72011
221.120.0.0/18Mobile Business GroupapnicTW2521
221.120.64.0/19Mobile Business GroupapnicTW500
221.120.96.0/21server groupapnicBD9415
221.120.104.0/21Concentrix BPO Pvt LtdapnicIN300
221.120.112.0/21SINGTEL SATOPNS SCPC LINKapnicSG130
221.120.120.0/21iDirect Service UseapnicSG110
221.120.128.0/19IP EXCHANGE PTY LTDapnicAU100
221.120.160.0/22EZECOM limitedapnicKH551
221.120.164.0/22Field Solutions Group Pty LtdapnicAU310
221.120.168.0/21Global Network Core Co.,Ltd.apnicJP11,0080
221.120.176.0/20APTNET, JV between Singapore Telecom andapnicHK112300
221.120.192.0/18Pakistan Telecommunication Company LimitapnicPK583719
221.121.0.0/18Dai IP su dung cho mang khach hang xDSLapnicVN21845
221.121.64.0/19The Department of Jobs and Small BusinesapnicAU100
221.121.96.0/19Pacific Internet Phils.apnicPH010
221.121.128.0/19Servers Australia Pty Ltd Wholesale ServapnicAU2214,2990
221.121.160.0/20FreeBit Co.,LTD.apnicJP100
221.121.176.0/21FUJITSU NAGANO SYSTEMS ENGINEERING LIMITapnicJP110
221.121.184.0/218th Floor ELJ Communications CenterapnicPH620
221.121.192.0/18APNICapnicJP440
221.122.0.0/15Beijing flash newsletter cas telecommuniapnicCN223,5752
221.124.0.0/14HGC Global Communications LimitedapnicHK3338923
221.128.0.0/18221.128.0.0/19apnicJP000
221.128.64.0/22Pacific Internet (Thailand) Ltd.apnicSG300
221.128.68.0/23Pacific Internet (Thailand) Ltd.apnicSG300
221.128.70.0/24Pacific Internet Pte LtdapnicSG100
221.128.71.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.72.0/24Pacific Internet Pte LtdapnicSG100
221.128.73.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.74.0/23Pacific Internet Pte LtdapnicSG300
221.128.76.0/24Pacific Internet Pte LtdapnicSG100
221.128.77.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.78.0/24Pacific Internet Pte LtdapnicSG100
221.128.79.0/24Pacnet Services (Japan) Corp.apnicJP020
221.128.80.0/24Pacific Internet Pte LtdapnicSG100
221.128.81.0/24Bangkok Chain Hospital Public Co.LtdapnicJP000
221.128.82.0/23Pacific Internet (Thailand) Ltd.apnicSG300
221.128.84.0/23Pacific Internet (Thailand) Ltd.apnicSG300
221.128.86.0/24Pacific Internet Pte LtdapnicSG100
221.128.87.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.88.0/22Pacnet Services (Japan) Corp.apnicJP000
221.128.92.0/22Pacific Internet Pte LtdapnicSG500
221.128.96.0/24Pacific Internet Pte LtdapnicSG100
221.128.97.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.98.0/23Pacnet Services (Japan) Corp.apnicJP000
221.128.100.0/22Pacific Internet (Thailand) Ltd.apnicSG410
221.128.104.0/22Pacnet Services (Japan) Corp.apnicJP000
221.128.108.0/23Pacnet Services (Japan) Corp.apnicJP000
221.128.110.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.111.0/24Pacific Internet Pte LtdapnicSG100
221.128.112.0/23Pacific Internet Pte LtdapnicSG300
221.128.114.0/24Pacific Internet Pte LtdapnicSG100
221.128.115.0/24Pacnet Services (Japan) Corp.apnicJP100
221.128.116.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.117.0/24Pacific Internet Pte LtdapnicSG100
221.128.118.0/23Pacnet Services (Japan) Corp.apnicJP000
221.128.120.0/24Pacific Internet Pte LtdapnicSG100
221.128.121.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.122.0/24Pacific Internet Pte LtdapnicSG100
221.128.123.0/24Pacnet Services (Japan) Corp.apnicJP000
221.128.124.0/22Pacific Internet (Thailand) Ltd.apnicSG5100
221.128.128.0/17Beijing Chang Ying Netowrk Service Co.LtapnicCN000
221.129.0.0/16TIANJIN BROADCAST & TV NETWORK CO. LTDapnicCN11120
221.130.0.0/15China Mobile Communications CorporationapnicCN1229269
221.132.0.0/18Vietnam Posts and Telecommunications GroapnicVN302,8272

Showing max 100 subnets. Premium members can view all subnets on this level. Summary of other available subnets:

221.132.64.0/19 221.132.96.0/20 221.132.112.0/21 221.132.120.0/21 221.132.128.0/18 221.132.192.0/18 221.133.0.0/19 221.133.32.0/21 221.133.40.0/21 221.133.48.0/22 221.133.52.0/23 221.133.54.0/24 221.133.55.0/24 221.133.56.0/21 221.133.64.0/18 221.133.128.0/18 221.133.192.0/19 221.133.224.0/19 221.134.0.0/18 221.134.64.0/18 221.134.128.0/17 221.135.0.0/16 221.136.0.0/16 221.137.0.0/16 221.138.0.0/15 221.140.0.0/14 221.144.0.0/12 221.160.0.0/13 221.168.0.0/16 221.169.0.0/16 221.170.0.0/16 221.171.0.0/16 221.172.0.0/14 221.176.0.0/13 221.184.0.0/13 221.192.0.0/15 221.194.0.0/16 221.195.0.0/16 221.196.0.0/15 221.198.0.0/16 221.199.0.0/19 221.199.32.0/20 221.199.48.0/20 221.199.64.0/18 221.199.128.0/18 221.199.192.0/20 221.199.208.0/20 221.199.224.0/19 221.200.0.0/14 221.204.0.0/15 221.206.0.0/16 221.207.0.0/18 221.207.64.0/18 221.207.128.0/17 221.208.0.0/14 221.212.0.0/16 221.213.0.0/16 221.214.0.0/15 221.216.0.0/13 221.224.0.0/13 221.232.0.0/14 221.236.0.0/15 221.238.0.0/16 221.239.0.0/17 221.239.128.0/17 221.240.0.0/12

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