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CIDR Range

163.151.0.0/17

32.8K IPs /17 County of Westchester AS36161 United States APNIC
Addresses
32,768
32.8K
IP Range
163.151.0.0
→ 163.151.127.255
Sub-ranges
10+
within this block
PTR Density
1.0%
323 of 32.8K 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.

84/100
Trusted
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Ranges inside 163.151.0.0/17

CIDRIPsOrganizationASNCountry
163.151.0.0/18 16.4K County of Westchester AS36161 US
163.151.64.0/18 16.4K County of Westchester AS36161 US
163.151.96.0/19 8.2K County of Westchester AS36161 US
163.151.0.0/19 8.2K County of Westchester AS36161 US
163.151.80.0/20 4.1K County of Westchester AS36161 US
163.151.64.0/20 4.1K County of Westchester AS36161 US
163.151.48.0/20 4.1K County of Westchester AS36161 US
163.151.32.0/20 4.1K County of Westchester AS36161 US
163.151.16.0/20 4.1K County of Westchester AS36161 US
163.151.0.0/20 4.1K County of Westchester AS36161 US

Geolocation

First 256 of 32,768 IP addresses in 163.151.0.0/17

163.151.0.0 163.151.0.1 163.151.0.2 163.151.0.3 163.151.0.4 163.151.0.5 163.151.0.6 163.151.0.7 163.151.0.8 163.151.0.9 163.151.0.10 163.151.0.11 163.151.0.12 163.151.0.13 163.151.0.14 163.151.0.15 163.151.0.16 163.151.0.17 163.151.0.18 163.151.0.19 163.151.0.20 163.151.0.21 163.151.0.22 163.151.0.23 163.151.0.24 163.151.0.25 163.151.0.26 163.151.0.27 163.151.0.28 163.151.0.29 163.151.0.30 163.151.0.31 163.151.0.32 163.151.0.33 163.151.0.34 163.151.0.35 163.151.0.36 163.151.0.37 163.151.0.38 163.151.0.39 163.151.0.40 163.151.0.41 163.151.0.42 163.151.0.43 163.151.0.44 163.151.0.45 163.151.0.46 163.151.0.47 163.151.0.48 163.151.0.49 163.151.0.50 163.151.0.51 163.151.0.52 163.151.0.53 163.151.0.54 163.151.0.55 163.151.0.56 163.151.0.57 163.151.0.58 163.151.0.59 163.151.0.60 163.151.0.61 163.151.0.62 163.151.0.63 163.151.0.64 163.151.0.65 163.151.0.66 163.151.0.67 163.151.0.68 163.151.0.69 163.151.0.70 163.151.0.71 163.151.0.72 163.151.0.73 163.151.0.74 163.151.0.75 163.151.0.76 163.151.0.77 163.151.0.78 163.151.0.79 163.151.0.80 163.151.0.81 163.151.0.82 163.151.0.83 163.151.0.84 163.151.0.85 163.151.0.86 163.151.0.87 163.151.0.88 163.151.0.89 163.151.0.90 163.151.0.91 163.151.0.92 163.151.0.93 163.151.0.94 163.151.0.95 163.151.0.96 163.151.0.97 163.151.0.98 163.151.0.99 163.151.0.100 163.151.0.101 163.151.0.102 163.151.0.103 163.151.0.104 163.151.0.105 163.151.0.106 163.151.0.107 163.151.0.108 163.151.0.109 163.151.0.110 163.151.0.111 163.151.0.112 163.151.0.113 163.151.0.114 163.151.0.115 163.151.0.116 163.151.0.117 163.151.0.118 163.151.0.119 163.151.0.120 163.151.0.121 163.151.0.122 163.151.0.123 163.151.0.124 163.151.0.125 163.151.0.126 163.151.0.127 163.151.0.128 163.151.0.129 163.151.0.130 163.151.0.131 163.151.0.132 163.151.0.133 163.151.0.134 163.151.0.135 163.151.0.136 163.151.0.137 163.151.0.138 163.151.0.139 163.151.0.140 163.151.0.141 163.151.0.142 163.151.0.143 163.151.0.144 163.151.0.145 163.151.0.146 163.151.0.147 163.151.0.148 163.151.0.149 163.151.0.150 163.151.0.151 163.151.0.152 163.151.0.153 163.151.0.154 163.151.0.155 163.151.0.156 163.151.0.157 163.151.0.158 163.151.0.159 163.151.0.160 163.151.0.161 163.151.0.162 163.151.0.163 163.151.0.164 163.151.0.165 163.151.0.166 163.151.0.167 163.151.0.168 163.151.0.169 163.151.0.170 163.151.0.171 163.151.0.172 163.151.0.173 163.151.0.174 163.151.0.175 163.151.0.176 163.151.0.177 163.151.0.178 163.151.0.179 163.151.0.180 163.151.0.181 163.151.0.182 163.151.0.183 163.151.0.184 163.151.0.185 163.151.0.186 163.151.0.187 163.151.0.188 163.151.0.189 163.151.0.190 163.151.0.191 163.151.0.192 163.151.0.193 163.151.0.194 163.151.0.195 163.151.0.196 163.151.0.197 163.151.0.198 163.151.0.199 163.151.0.200 163.151.0.201 163.151.0.202 163.151.0.203 163.151.0.204 163.151.0.205 163.151.0.206 163.151.0.207 163.151.0.208 163.151.0.209 163.151.0.210 163.151.0.211 163.151.0.212 163.151.0.213 163.151.0.214 163.151.0.215 163.151.0.216 163.151.0.217 163.151.0.218 163.151.0.219 163.151.0.220 163.151.0.221 163.151.0.222 163.151.0.223 163.151.0.224 163.151.0.225 163.151.0.226 163.151.0.227 163.151.0.228 163.151.0.229 163.151.0.230 163.151.0.231 163.151.0.232 163.151.0.233 163.151.0.234 163.151.0.235 163.151.0.236 163.151.0.237 163.151.0.238 163.151.0.239 163.151.0.240 163.151.0.241 163.151.0.242 163.151.0.243 163.151.0.244 163.151.0.245 163.151.0.246 163.151.0.247 163.151.0.248 163.151.0.249 163.151.0.250 163.151.0.251 163.151.0.252 163.151.0.253 163.151.0.254 163.151.0.255 + 32.5K more (range too large to list inline)

BGP Routing

Live BGP anomalies →

This block is announced in BGP, observed across our RIPE RIS collectors.

Announced prefix
163.151.0.0/17
Origin AS
AS36161
Announcement samples
4,918
Last seen
2026-07-23 17:20:32

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files.

Date Event From To
2026-05-10 RIR Transfer apnic arin

Frequently Asked Questions

What is 163.151.0.0/17?

163.151.0.0/17 is a CIDR network block containing 32,768 IPv4 addresses (from 163.151.0.0 to 163.151.127.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 163.151.0.0/17 network?

The 163.151.0.0/17 range is allocated to County of Westchester and announced via AS36161 from United States.

Last updated: 2026-07-23 17:25:31 UTC
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