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CIDR Range

83.71.0.0/18

16.4K IPs /18 Eir Broadband AS5466 Ireland RIPE
Addresses
16,384
16.4K
IP Range
83.71.0.0
→ 83.71.63.255
Sub-ranges
13+
within this block
PTR Density
76.9%
12.6K of 16.4K 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.

76/100
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 83.71.0.0/18

CIDRIPsOrganizationASNCountry
83.71.32.0/19 8.2K Eir Broadband AS5466 IE
83.71.16.0/20 4.1K Eir Broadband AS5466 IE
83.71.8.0/21 2.0K Eir Broadband AS5466 IE
83.71.0.0/22 1.0K Eir Broadband AS5466 IE
83.71.12.0/22 1.0K Eir Broadband AS5466 IE
83.71.4.0/22 1.0K Eir Broadband AS5466 IE
83.71.8.0/22 1.0K Eir Broadband AS5466 IE
83.71.10.0/23 512 Eir Broadband AS5466 IE
83.71.8.0/23 512 Eir Broadband AS5466 IE
83.71.6.0/23 512 Eir Broadband AS5466 IE
83.71.4.0/23 512 Eir Broadband AS5466 IE
83.71.2.0/23 512 Eir Broadband AS5466 IE
83.71.0.0/23 512 Eir Broadband AS5466 IE

Geolocation

First 256 of 16,384 IP addresses in 83.71.0.0/18

83.71.0.0 83.71.0.1 83.71.0.2 83.71.0.3 83.71.0.4 83.71.0.5 83.71.0.6 83.71.0.7 83.71.0.8 83.71.0.9 83.71.0.10 83.71.0.11 83.71.0.12 83.71.0.13 83.71.0.14 83.71.0.15 83.71.0.16 83.71.0.17 83.71.0.18 83.71.0.19 83.71.0.20 83.71.0.21 83.71.0.22 83.71.0.23 83.71.0.24 83.71.0.25 83.71.0.26 83.71.0.27 83.71.0.28 83.71.0.29 83.71.0.30 83.71.0.31 83.71.0.32 83.71.0.33 83.71.0.34 83.71.0.35 83.71.0.36 83.71.0.37 83.71.0.38 83.71.0.39 83.71.0.40 83.71.0.41 83.71.0.42 83.71.0.43 83.71.0.44 83.71.0.45 83.71.0.46 83.71.0.47 83.71.0.48 83.71.0.49 83.71.0.50 83.71.0.51 83.71.0.52 83.71.0.53 83.71.0.54 83.71.0.55 83.71.0.56 83.71.0.57 83.71.0.58 83.71.0.59 83.71.0.60 83.71.0.61 83.71.0.62 83.71.0.63 83.71.0.64 83.71.0.65 83.71.0.66 83.71.0.67 83.71.0.68 83.71.0.69 83.71.0.70 83.71.0.71 83.71.0.72 83.71.0.73 83.71.0.74 83.71.0.75 83.71.0.76 83.71.0.77 83.71.0.78 83.71.0.79 83.71.0.80 83.71.0.81 83.71.0.82 83.71.0.83 83.71.0.84 83.71.0.85 83.71.0.86 83.71.0.87 83.71.0.88 83.71.0.89 83.71.0.90 83.71.0.91 83.71.0.92 83.71.0.93 83.71.0.94 83.71.0.95 83.71.0.96 83.71.0.97 83.71.0.98 83.71.0.99 83.71.0.100 83.71.0.101 83.71.0.102 83.71.0.103 83.71.0.104 83.71.0.105 83.71.0.106 83.71.0.107 83.71.0.108 83.71.0.109 83.71.0.110 83.71.0.111 83.71.0.112 83.71.0.113 83.71.0.114 83.71.0.115 83.71.0.116 83.71.0.117 83.71.0.118 83.71.0.119 83.71.0.120 83.71.0.121 83.71.0.122 83.71.0.123 83.71.0.124 83.71.0.125 83.71.0.126 83.71.0.127 83.71.0.128 83.71.0.129 83.71.0.130 83.71.0.131 83.71.0.132 83.71.0.133 83.71.0.134 83.71.0.135 83.71.0.136 83.71.0.137 83.71.0.138 83.71.0.139 83.71.0.140 83.71.0.141 83.71.0.142 83.71.0.143 83.71.0.144 83.71.0.145 83.71.0.146 83.71.0.147 83.71.0.148 83.71.0.149 83.71.0.150 83.71.0.151 83.71.0.152 83.71.0.153 83.71.0.154 83.71.0.155 83.71.0.156 83.71.0.157 83.71.0.158 83.71.0.159 83.71.0.160 83.71.0.161 83.71.0.162 83.71.0.163 83.71.0.164 83.71.0.165 83.71.0.166 83.71.0.167 83.71.0.168 83.71.0.169 83.71.0.170 83.71.0.171 83.71.0.172 83.71.0.173 83.71.0.174 83.71.0.175 83.71.0.176 83.71.0.177 83.71.0.178 83.71.0.179 83.71.0.180 83.71.0.181 83.71.0.182 83.71.0.183 83.71.0.184 83.71.0.185 83.71.0.186 83.71.0.187 83.71.0.188 83.71.0.189 83.71.0.190 83.71.0.191 83.71.0.192 83.71.0.193 83.71.0.194 83.71.0.195 83.71.0.196 83.71.0.197 83.71.0.198 83.71.0.199 83.71.0.200 83.71.0.201 83.71.0.202 83.71.0.203 83.71.0.204 83.71.0.205 83.71.0.206 83.71.0.207 83.71.0.208 83.71.0.209 83.71.0.210 83.71.0.211 83.71.0.212 83.71.0.213 83.71.0.214 83.71.0.215 83.71.0.216 83.71.0.217 83.71.0.218 83.71.0.219 83.71.0.220 83.71.0.221 83.71.0.222 83.71.0.223 83.71.0.224 83.71.0.225 83.71.0.226 83.71.0.227 83.71.0.228 83.71.0.229 83.71.0.230 83.71.0.231 83.71.0.232 83.71.0.233 83.71.0.234 83.71.0.235 83.71.0.236 83.71.0.237 83.71.0.238 83.71.0.239 83.71.0.240 83.71.0.241 83.71.0.242 83.71.0.243 83.71.0.244 83.71.0.245 83.71.0.246 83.71.0.247 83.71.0.248 83.71.0.249 83.71.0.250 83.71.0.251 83.71.0.252 83.71.0.253 83.71.0.254 83.71.0.255 + 16.1K more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 83.70.0.0/15.

Announced prefix
83.70.0.0/15
Origin AS
AS5466
Announcement samples
4,342
Last seen
2026-07-19 10:38:23

Frequently Asked Questions

What is 83.71.0.0/18?

83.71.0.0/18 is a CIDR network block containing 16,384 IPv4 addresses (from 83.71.0.0 to 83.71.63.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 83.71.0.0/18 network?

The 83.71.0.0/18 range is allocated to Eir Broadband and announced via AS5466 from Ireland.

Last updated: 2026-07-19 10:40:32 UTC
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