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CIDR Range

115.31.66.0/23

512 IPs /23 CHINA UNICOM China169 Backbone AS4837 China APNIC
Addresses
512
512
IP Range
115.31.66.0
→ 115.31.67.255
Sub-ranges
0+
within this block
PTR Density
0.0%
0 of 512 IPs have PTR

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

73/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

First 256 of 512 IP addresses in 115.31.66.0/23

115.31.66.0 115.31.66.1 115.31.66.2 115.31.66.3 115.31.66.4 115.31.66.5 115.31.66.6 115.31.66.7 115.31.66.8 115.31.66.9 115.31.66.10 115.31.66.11 115.31.66.12 115.31.66.13 115.31.66.14 115.31.66.15 115.31.66.16 115.31.66.17 115.31.66.18 115.31.66.19 115.31.66.20 115.31.66.21 115.31.66.22 115.31.66.23 115.31.66.24 115.31.66.25 115.31.66.26 115.31.66.27 115.31.66.28 115.31.66.29 115.31.66.30 115.31.66.31 115.31.66.32 115.31.66.33 115.31.66.34 115.31.66.35 115.31.66.36 115.31.66.37 115.31.66.38 115.31.66.39 115.31.66.40 115.31.66.41 115.31.66.42 115.31.66.43 115.31.66.44 115.31.66.45 115.31.66.46 115.31.66.47 115.31.66.48 115.31.66.49 115.31.66.50 115.31.66.51 115.31.66.52 115.31.66.53 115.31.66.54 115.31.66.55 115.31.66.56 115.31.66.57 115.31.66.58 115.31.66.59 115.31.66.60 115.31.66.61 115.31.66.62 115.31.66.63 115.31.66.64 115.31.66.65 115.31.66.66 115.31.66.67 115.31.66.68 115.31.66.69 115.31.66.70 115.31.66.71 115.31.66.72 115.31.66.73 115.31.66.74 115.31.66.75 115.31.66.76 115.31.66.77 115.31.66.78 115.31.66.79 115.31.66.80 115.31.66.81 115.31.66.82 115.31.66.83 115.31.66.84 115.31.66.85 115.31.66.86 115.31.66.87 115.31.66.88 115.31.66.89 115.31.66.90 115.31.66.91 115.31.66.92 115.31.66.93 115.31.66.94 115.31.66.95 115.31.66.96 115.31.66.97 115.31.66.98 115.31.66.99 115.31.66.100 115.31.66.101 115.31.66.102 115.31.66.103 115.31.66.104 115.31.66.105 115.31.66.106 115.31.66.107 115.31.66.108 115.31.66.109 115.31.66.110 115.31.66.111 115.31.66.112 115.31.66.113 115.31.66.114 115.31.66.115 115.31.66.116 115.31.66.117 115.31.66.118 115.31.66.119 115.31.66.120 115.31.66.121 115.31.66.122 115.31.66.123 115.31.66.124 115.31.66.125 115.31.66.126 115.31.66.127 115.31.66.128 115.31.66.129 115.31.66.130 115.31.66.131 115.31.66.132 115.31.66.133 115.31.66.134 115.31.66.135 115.31.66.136 115.31.66.137 115.31.66.138 115.31.66.139 115.31.66.140 115.31.66.141 115.31.66.142 115.31.66.143 115.31.66.144 115.31.66.145 115.31.66.146 115.31.66.147 115.31.66.148 115.31.66.149 115.31.66.150 115.31.66.151 115.31.66.152 115.31.66.153 115.31.66.154 115.31.66.155 115.31.66.156 115.31.66.157 115.31.66.158 115.31.66.159 115.31.66.160 115.31.66.161 115.31.66.162 115.31.66.163 115.31.66.164 115.31.66.165 115.31.66.166 115.31.66.167 115.31.66.168 115.31.66.169 115.31.66.170 115.31.66.171 115.31.66.172 115.31.66.173 115.31.66.174 115.31.66.175 115.31.66.176 115.31.66.177 115.31.66.178 115.31.66.179 115.31.66.180 115.31.66.181 115.31.66.182 115.31.66.183 115.31.66.184 115.31.66.185 115.31.66.186 115.31.66.187 115.31.66.188 115.31.66.189 115.31.66.190 115.31.66.191 115.31.66.192 115.31.66.193 115.31.66.194 115.31.66.195 115.31.66.196 115.31.66.197 115.31.66.198 115.31.66.199 115.31.66.200 115.31.66.201 115.31.66.202 115.31.66.203 115.31.66.204 115.31.66.205 115.31.66.206 115.31.66.207 115.31.66.208 115.31.66.209 115.31.66.210 115.31.66.211 115.31.66.212 115.31.66.213 115.31.66.214 115.31.66.215 115.31.66.216 115.31.66.217 115.31.66.218 115.31.66.219 115.31.66.220 115.31.66.221 115.31.66.222 115.31.66.223 115.31.66.224 115.31.66.225 115.31.66.226 115.31.66.227 115.31.66.228 115.31.66.229 115.31.66.230 115.31.66.231 115.31.66.232 115.31.66.233 115.31.66.234 115.31.66.235 115.31.66.236 115.31.66.237 115.31.66.238 115.31.66.239 115.31.66.240 115.31.66.241 115.31.66.242 115.31.66.243 115.31.66.244 115.31.66.245 115.31.66.246 115.31.66.247 115.31.66.248 115.31.66.249 115.31.66.250 115.31.66.251 115.31.66.252 115.31.66.253 115.31.66.254 115.31.66.255 + 256 more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 115.31.64.0/22.

Announced prefix
115.31.64.0/22
Origin AS
AS4837
Announcement samples
12,149
Last seen
2026-07-23 22:49:31

Frequently Asked Questions

What is 115.31.66.0/23?

115.31.66.0/23 is a CIDR network block containing 512 IPv4 addresses (from 115.31.66.0 to 115.31.67.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 115.31.66.0/23 network?

The 115.31.66.0/23 range is allocated to CHINA UNICOM China169 Backbone and announced via AS4837 from China.

Last updated: 2026-07-23 23:55:31 UTC
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