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CIDR Range

5.103.166.0/23

512 IPs /23 FIBIA P/S AS44869 Denmark RIPE
Addresses
512
512
IP Range
5.103.166.0
→ 5.103.167.255
Sub-ranges
2+
within this block
PTR Density
100.0%
512 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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Ranges inside 5.103.166.0/23

CIDRIPsOrganizationASNCountry
5.103.166.0/24 256 FIBIA P/S AS44869 DK
5.103.167.0/24 256 FIBIA P/S AS44869 DK

Geolocation

First 256 of 512 IP addresses in 5.103.166.0/23

5.103.166.0 5.103.166.1 5.103.166.2 5.103.166.3 5.103.166.4 5.103.166.5 5.103.166.6 5.103.166.7 5.103.166.8 5.103.166.9 5.103.166.10 5.103.166.11 5.103.166.12 5.103.166.13 5.103.166.14 5.103.166.15 5.103.166.16 5.103.166.17 5.103.166.18 5.103.166.19 5.103.166.20 5.103.166.21 5.103.166.22 5.103.166.23 5.103.166.24 5.103.166.25 5.103.166.26 5.103.166.27 5.103.166.28 5.103.166.29 5.103.166.30 5.103.166.31 5.103.166.32 5.103.166.33 5.103.166.34 5.103.166.35 5.103.166.36 5.103.166.37 5.103.166.38 5.103.166.39 5.103.166.40 5.103.166.41 5.103.166.42 5.103.166.43 5.103.166.44 5.103.166.45 5.103.166.46 5.103.166.47 5.103.166.48 5.103.166.49 5.103.166.50 5.103.166.51 5.103.166.52 5.103.166.53 5.103.166.54 5.103.166.55 5.103.166.56 5.103.166.57 5.103.166.58 5.103.166.59 5.103.166.60 5.103.166.61 5.103.166.62 5.103.166.63 5.103.166.64 5.103.166.65 5.103.166.66 5.103.166.67 5.103.166.68 5.103.166.69 5.103.166.70 5.103.166.71 5.103.166.72 5.103.166.73 5.103.166.74 5.103.166.75 5.103.166.76 5.103.166.77 5.103.166.78 5.103.166.79 5.103.166.80 5.103.166.81 5.103.166.82 5.103.166.83 5.103.166.84 5.103.166.85 5.103.166.86 5.103.166.87 5.103.166.88 5.103.166.89 5.103.166.90 5.103.166.91 5.103.166.92 5.103.166.93 5.103.166.94 5.103.166.95 5.103.166.96 5.103.166.97 5.103.166.98 5.103.166.99 5.103.166.100 5.103.166.101 5.103.166.102 5.103.166.103 5.103.166.104 5.103.166.105 5.103.166.106 5.103.166.107 5.103.166.108 5.103.166.109 5.103.166.110 5.103.166.111 5.103.166.112 5.103.166.113 5.103.166.114 5.103.166.115 5.103.166.116 5.103.166.117 5.103.166.118 5.103.166.119 5.103.166.120 5.103.166.121 5.103.166.122 5.103.166.123 5.103.166.124 5.103.166.125 5.103.166.126 5.103.166.127 5.103.166.128 5.103.166.129 5.103.166.130 5.103.166.131 5.103.166.132 5.103.166.133 5.103.166.134 5.103.166.135 5.103.166.136 5.103.166.137 5.103.166.138 5.103.166.139 5.103.166.140 5.103.166.141 5.103.166.142 5.103.166.143 5.103.166.144 5.103.166.145 5.103.166.146 5.103.166.147 5.103.166.148 5.103.166.149 5.103.166.150 5.103.166.151 5.103.166.152 5.103.166.153 5.103.166.154 5.103.166.155 5.103.166.156 5.103.166.157 5.103.166.158 5.103.166.159 5.103.166.160 5.103.166.161 5.103.166.162 5.103.166.163 5.103.166.164 5.103.166.165 5.103.166.166 5.103.166.167 5.103.166.168 5.103.166.169 5.103.166.170 5.103.166.171 5.103.166.172 5.103.166.173 5.103.166.174 5.103.166.175 5.103.166.176 5.103.166.177 5.103.166.178 5.103.166.179 5.103.166.180 5.103.166.181 5.103.166.182 5.103.166.183 5.103.166.184 5.103.166.185 5.103.166.186 5.103.166.187 5.103.166.188 5.103.166.189 5.103.166.190 5.103.166.191 5.103.166.192 5.103.166.193 5.103.166.194 5.103.166.195 5.103.166.196 5.103.166.197 5.103.166.198 5.103.166.199 5.103.166.200 5.103.166.201 5.103.166.202 5.103.166.203 5.103.166.204 5.103.166.205 5.103.166.206 5.103.166.207 5.103.166.208 5.103.166.209 5.103.166.210 5.103.166.211 5.103.166.212 5.103.166.213 5.103.166.214 5.103.166.215 5.103.166.216 5.103.166.217 5.103.166.218 5.103.166.219 5.103.166.220 5.103.166.221 5.103.166.222 5.103.166.223 5.103.166.224 5.103.166.225 5.103.166.226 5.103.166.227 5.103.166.228 5.103.166.229 5.103.166.230 5.103.166.231 5.103.166.232 5.103.166.233 5.103.166.234 5.103.166.235 5.103.166.236 5.103.166.237 5.103.166.238 5.103.166.239 5.103.166.240 5.103.166.241 5.103.166.242 5.103.166.243 5.103.166.244 5.103.166.245 5.103.166.246 5.103.166.247 5.103.166.248 5.103.166.249 5.103.166.250 5.103.166.251 5.103.166.252 5.103.166.253 5.103.166.254 5.103.166.255 + 256 more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 5.103.0.0/16.

Announced prefix
5.103.0.0/16
Origin AS
AS44869
Announcement samples
6,393
Last seen
2026-07-19 20:51:43

Frequently Asked Questions

What is 5.103.166.0/23?

5.103.166.0/23 is a CIDR network block containing 512 IPv4 addresses (from 5.103.166.0 to 5.103.167.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 5.103.166.0/23 network?

The 5.103.166.0/23 range is allocated to FIBIA P/S and announced via AS44869 from Denmark.

Last updated: 2026-07-19 21:10:33 UTC
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