WWW.ROBTEX.COM - ns21.bt.net

Search for IP or hostnames:

ns21.bt.net checked at 2025-09-18T02:02:52.196Z 132ms 37/37/37 100% R:13

`ns21.bt.net`

A	217.35.209.187^{🇬🇧 BTnet (BT's UK IP Network - AS2856)}
		PTR	`indnss25.bt.net`
		PTR	`ns21.bt.net`
		PTR	`indnss25.ukcore.bt.net`

`bt.net`

	NS	`ns0.bt.net`
	NS	`ns1.bt.net`
	NS	`ns2.bt.net`
	MX	`relay1.bt.net`
	MX	`relay2.bt.net`
	MX	`relay3.bt.net`
	A	193.113.211.125^{🇬🇧 BTnet (BT's UK IP Network - AS2856)}

PTR for

187.209.35.217.in-addr.arpa

NS for

51.151.109.in-addr.arpa

84.167.86.in-addr.arpa

13.132.86.in-addr.arpa

97.129.81.in-addr.arpa

45.51.31.in-addr.arpa

255.149.81.in-addr.arpa

93.168.86.in-addr.arpa

128.143.81.in-addr.arpa

222.120.165.in-addr.arpa

209.142.81.in-addr.arpa

54.171.86.in-addr.arpa

in-addr.btopenworld.com

244.154.109.in-addr.arpa

50.54.31.in-addr.arpa

6.184.86.in-addr.arpa

243.167.86.in-addr.arpa

219.45.217.in-addr.arpa

44.184.86.in-addr.arpa

91.137.86.in-addr.arpa

163.187.86.in-addr.arpa

176.37.217.in-addr.arpa

237.155.109.in-addr.arpa

170.163.86.in-addr.arpa

19.150.109.in-addr.arpa

177.141.86.in-addr.arpa

129.156.81.in-addr.arpa

17.168.86.in-addr.arpa

190.136.81.in-addr.arpa

79.171.86.in-addr.arpa

35.151.109.in-addr.arpa

174.128.86.in-addr.arpa

120.54.31.in-addr.arpa

39.120.213.in-addr.arpa

83.133.81.in-addr.arpa

249.128.86.in-addr.arpa

126.143.86.in-addr.arpa

192.52.31.in-addr.arpa

66.120.213.in-addr.arpa

184.138.81.in-addr.arpa

55.150.81.in-addr.arpa

96.153.81.in-addr.arpa

251.184.86.in-addr.arpa

51.158.81.in-addr.arpa

215.152.86.in-addr.arpa

221.150.81.in-addr.arpa

118.44.217.in-addr.arpa

137.158.81.in-addr.arpa

50.149.81.in-addr.arpa

26.144.86.in-addr.arpa

100.6.62.in-addr.arpa

16.134.81.in-addr.arpa

58.159.81.in-addr.arpa

242.136.86.in-addr.arpa

92.130.86.in-addr.arpa

40.159.81.in-addr.arpa

37.190.86.in-addr.arpa

94.144.86.in-addr.arpa

231.142.86.in-addr.arpa

98.156.81.in-addr.arpa

14.147.81.in-addr.arpa

138.141.81.in-addr.arpa

0.145.86.in-addr.arpa

249.153.109.in-addr.arpa

192.152.81.in-addr.arpa

148.154.109.in-addr.arpa

137.54.31.in-addr.arpa

144.153.86.in-addr.arpa

182.168.86.in-addr.arpa

195.142.86.in-addr.arpa

118.153.81.in-addr.arpa

71.140.81.in-addr.arpa

9.37.217.in-addr.arpa

224.130.81.in-addr.arpa

115.145.86.in-addr.arpa

225.147.109.in-addr.arpa

252.133.81.in-addr.arpa

13.54.31.in-addr.arpa

57.163.86.in-addr.arpa

143.133.81.in-addr.arpa

113.145.109.in-addr.arpa

130.45.217.in-addr.arpa

206.179.86.in-addr.arpa

250.162.86.in-addr.arpa

127.143.81.in-addr.arpa

242.141.81.in-addr.arpa

197.158.81.in-addr.arpa

117.54.31.in-addr.arpa

8.156.81.in-addr.arpa

14.158.81.in-addr.arpa

234.156.81.in-addr.arpa

81.155.109.in-addr.arpa

192.142.81.in-addr.arpa

0.149.81.in-addr.arpa

125.153.81.in-addr.arpa

189.151.109.in-addr.arpa

136.37.217.in-addr.arpa

20.123.213.in-addr.arpa

149.153.86.in-addr.arpa

251.52.31.in-addr.arpa

125.180.86.in-addr.arpa

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AI analysis

ns21.bt.net serves as a name server for 51.151.109.in-addr.arpa, 84.167.86.in-addr.arpa, 13.132.86.in-addr.arpa, 97.129.81.in-addr.arpa and 45.51.31.in-addr.arpa, thousands of other domains.

ns20.bt.net commonly serves as a name server together with ns21.bt.net.

ns21.bt.net resolves to a single IP: 217.35.209.187.

Other host names, for instance, indnss25.ukcore.bt.net and indnss25.bt.net share IP numbers with ns21.bt.net.

dbq