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CIDR Range

5.161.0.0/16

65.5K IPs /16 Hetzner Online GmbH AS213230 United States RIPE
Addresses
65,536
65.5K
IP Range
5.161.0.0
→ 5.161.255.255
Sub-ranges
11+
within this block
PTR Density
100.0%
65.5K of 65.5K 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.

70/100
Moderate
How this score is built

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

Ranges inside 5.161.0.0/16

CIDRIPsOrganizationASNCountry
5.161.128.0/17 32.8K Hetzner Online GmbH AS213230 DE
5.161.64.0/18 16.4K Hetzner Online GmbH AS213230 DE
5.161.32.0/19 8.2K Hetzner Online GmbH AS213230 DE
5.161.16.0/20 4.1K Hetzner Online GmbH AS213230 DE
5.161.8.0/21 2.0K Hetzner Online GmbH AS213230 DE
5.161.0.0/22 1.0K Hetzner Online GmbH AS213230 DE
5.161.4.0/23 512 Hetzner Online GmbH AS213230 DE
5.161.6.0/24 256 Hetzner Online GmbH AS213230 DE
5.161.7.0/25 128 Hetzner Online GmbH AS213230 DE
5.161.7.128/26 64 Hetzner Online GmbH AS213230 DE
5.161.7.192/26 64 Hetzner Online GmbH AS213230 DE

First 256 of 65,536 IP addresses in 5.161.0.0/16

5.161.0.0 5.161.0.1 5.161.0.2 5.161.0.3 5.161.0.4 5.161.0.5 5.161.0.6 5.161.0.7 5.161.0.8 5.161.0.9 5.161.0.10 5.161.0.11 5.161.0.12 5.161.0.13 5.161.0.14 5.161.0.15 5.161.0.16 5.161.0.17 5.161.0.18 5.161.0.19 5.161.0.20 5.161.0.21 5.161.0.22 5.161.0.23 5.161.0.24 5.161.0.25 5.161.0.26 5.161.0.27 5.161.0.28 5.161.0.29 5.161.0.30 5.161.0.31 5.161.0.32 5.161.0.33 5.161.0.34 5.161.0.35 5.161.0.36 5.161.0.37 5.161.0.38 5.161.0.39 5.161.0.40 5.161.0.41 5.161.0.42 5.161.0.43 5.161.0.44 5.161.0.45 5.161.0.46 5.161.0.47 5.161.0.48 5.161.0.49 5.161.0.50 5.161.0.51 5.161.0.52 5.161.0.53 5.161.0.54 5.161.0.55 5.161.0.56 5.161.0.57 5.161.0.58 5.161.0.59 5.161.0.60 5.161.0.61 5.161.0.62 5.161.0.63 5.161.0.64 5.161.0.65 5.161.0.66 5.161.0.67 5.161.0.68 5.161.0.69 5.161.0.70 5.161.0.71 5.161.0.72 5.161.0.73 5.161.0.74 5.161.0.75 5.161.0.76 5.161.0.77 5.161.0.78 5.161.0.79 5.161.0.80 5.161.0.81 5.161.0.82 5.161.0.83 5.161.0.84 5.161.0.85 5.161.0.86 5.161.0.87 5.161.0.88 5.161.0.89 5.161.0.90 5.161.0.91 5.161.0.92 5.161.0.93 5.161.0.94 5.161.0.95 5.161.0.96 5.161.0.97 5.161.0.98 5.161.0.99 5.161.0.100 5.161.0.101 5.161.0.102 5.161.0.103 5.161.0.104 5.161.0.105 5.161.0.106 5.161.0.107 5.161.0.108 5.161.0.109 5.161.0.110 5.161.0.111 5.161.0.112 5.161.0.113 5.161.0.114 5.161.0.115 5.161.0.116 5.161.0.117 5.161.0.118 5.161.0.119 5.161.0.120 5.161.0.121 5.161.0.122 5.161.0.123 5.161.0.124 5.161.0.125 5.161.0.126 5.161.0.127 5.161.0.128 5.161.0.129 5.161.0.130 5.161.0.131 5.161.0.132 5.161.0.133 5.161.0.134 5.161.0.135 5.161.0.136 5.161.0.137 5.161.0.138 5.161.0.139 5.161.0.140 5.161.0.141 5.161.0.142 5.161.0.143 5.161.0.144 5.161.0.145 5.161.0.146 5.161.0.147 5.161.0.148 5.161.0.149 5.161.0.150 5.161.0.151 5.161.0.152 5.161.0.153 5.161.0.154 5.161.0.155 5.161.0.156 5.161.0.157 5.161.0.158 5.161.0.159 5.161.0.160 5.161.0.161 5.161.0.162 5.161.0.163 5.161.0.164 5.161.0.165 5.161.0.166 5.161.0.167 5.161.0.168 5.161.0.169 5.161.0.170 5.161.0.171 5.161.0.172 5.161.0.173 5.161.0.174 5.161.0.175 5.161.0.176 5.161.0.177 5.161.0.178 5.161.0.179 5.161.0.180 5.161.0.181 5.161.0.182 5.161.0.183 5.161.0.184 5.161.0.185 5.161.0.186 5.161.0.187 5.161.0.188 5.161.0.189 5.161.0.190 5.161.0.191 5.161.0.192 5.161.0.193 5.161.0.194 5.161.0.195 5.161.0.196 5.161.0.197 5.161.0.198 5.161.0.199 5.161.0.200 5.161.0.201 5.161.0.202 5.161.0.203 5.161.0.204 5.161.0.205 5.161.0.206 5.161.0.207 5.161.0.208 5.161.0.209 5.161.0.210 5.161.0.211 5.161.0.212 5.161.0.213 5.161.0.214 5.161.0.215 5.161.0.216 5.161.0.217 5.161.0.218 5.161.0.219 5.161.0.220 5.161.0.221 5.161.0.222 5.161.0.223 5.161.0.224 5.161.0.225 5.161.0.226 5.161.0.227 5.161.0.228 5.161.0.229 5.161.0.230 5.161.0.231 5.161.0.232 5.161.0.233 5.161.0.234 5.161.0.235 5.161.0.236 5.161.0.237 5.161.0.238 5.161.0.239 5.161.0.240 5.161.0.241 5.161.0.242 5.161.0.243 5.161.0.244 5.161.0.245 5.161.0.246 5.161.0.247 5.161.0.248 5.161.0.249 5.161.0.250 5.161.0.251 5.161.0.252 5.161.0.253 5.161.0.254 5.161.0.255 + 65.3K 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
5.161.0.0/16
Origin AS
AS213230
Announcement samples
8,243
Last seen
2026-09-15 01:20:41

RIR Ownership History

Atom feed ⇲

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

Date Event From To
2026-05-10 New Allocation — DE

Frequently Asked Questions

What is 5.161.0.0/16?

5.161.0.0/16 is a CIDR network block containing 65,536 IPv4 addresses (from 5.161.0.0 to 5.161.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 5.161.0.0/16 network?

The 5.161.0.0/16 range is allocated to Hetzner Online GmbH and announced via AS213230 from United States.

Last updated: 2026-09-15 03:24:06 UTC
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