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CIDR Range

5.89.72.0/21

2.0K IPs /21 Fastweb AS30722 Italy RIPE
Addresses
2,048
2.0K
IP Range
5.89.72.0
→ 5.89.79.255
Sub-ranges
7+
within this block
PTR Density
100.0%
2.0K of 2.0K 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 5.89.72.0/21

CIDRIPsOrganizationASNCountry
5.89.72.0/22 1.0K Fastweb AS30722 IT
5.89.76.0/23 512 Fastweb AS30722 IT
5.89.79.0/24 256 Fastweb AS30722 IT
5.89.78.0/25 128 Fastweb AS30722 IT
5.89.78.128/25 128 Fastweb AS30722 IT
5.89.78.0/26 64 Fastweb AS30722 IT
5.89.78.64/26 64 Fastweb AS30722 IT

Geolocation

First 256 of 2,048 IP addresses in 5.89.72.0/21

5.89.72.0 5.89.72.1 5.89.72.2 5.89.72.3 5.89.72.4 5.89.72.5 5.89.72.6 5.89.72.7 5.89.72.8 5.89.72.9 5.89.72.10 5.89.72.11 5.89.72.12 5.89.72.13 5.89.72.14 5.89.72.15 5.89.72.16 5.89.72.17 5.89.72.18 5.89.72.19 5.89.72.20 5.89.72.21 5.89.72.22 5.89.72.23 5.89.72.24 5.89.72.25 5.89.72.26 5.89.72.27 5.89.72.28 5.89.72.29 5.89.72.30 5.89.72.31 5.89.72.32 5.89.72.33 5.89.72.34 5.89.72.35 5.89.72.36 5.89.72.37 5.89.72.38 5.89.72.39 5.89.72.40 5.89.72.41 5.89.72.42 5.89.72.43 5.89.72.44 5.89.72.45 5.89.72.46 5.89.72.47 5.89.72.48 5.89.72.49 5.89.72.50 5.89.72.51 5.89.72.52 5.89.72.53 5.89.72.54 5.89.72.55 5.89.72.56 5.89.72.57 5.89.72.58 5.89.72.59 5.89.72.60 5.89.72.61 5.89.72.62 5.89.72.63 5.89.72.64 5.89.72.65 5.89.72.66 5.89.72.67 5.89.72.68 5.89.72.69 5.89.72.70 5.89.72.71 5.89.72.72 5.89.72.73 5.89.72.74 5.89.72.75 5.89.72.76 5.89.72.77 5.89.72.78 5.89.72.79 5.89.72.80 5.89.72.81 5.89.72.82 5.89.72.83 5.89.72.84 5.89.72.85 5.89.72.86 5.89.72.87 5.89.72.88 5.89.72.89 5.89.72.90 5.89.72.91 5.89.72.92 5.89.72.93 5.89.72.94 5.89.72.95 5.89.72.96 5.89.72.97 5.89.72.98 5.89.72.99 5.89.72.100 5.89.72.101 5.89.72.102 5.89.72.103 5.89.72.104 5.89.72.105 5.89.72.106 5.89.72.107 5.89.72.108 5.89.72.109 5.89.72.110 5.89.72.111 5.89.72.112 5.89.72.113 5.89.72.114 5.89.72.115 5.89.72.116 5.89.72.117 5.89.72.118 5.89.72.119 5.89.72.120 5.89.72.121 5.89.72.122 5.89.72.123 5.89.72.124 5.89.72.125 5.89.72.126 5.89.72.127 5.89.72.128 5.89.72.129 5.89.72.130 5.89.72.131 5.89.72.132 5.89.72.133 5.89.72.134 5.89.72.135 5.89.72.136 5.89.72.137 5.89.72.138 5.89.72.139 5.89.72.140 5.89.72.141 5.89.72.142 5.89.72.143 5.89.72.144 5.89.72.145 5.89.72.146 5.89.72.147 5.89.72.148 5.89.72.149 5.89.72.150 5.89.72.151 5.89.72.152 5.89.72.153 5.89.72.154 5.89.72.155 5.89.72.156 5.89.72.157 5.89.72.158 5.89.72.159 5.89.72.160 5.89.72.161 5.89.72.162 5.89.72.163 5.89.72.164 5.89.72.165 5.89.72.166 5.89.72.167 5.89.72.168 5.89.72.169 5.89.72.170 5.89.72.171 5.89.72.172 5.89.72.173 5.89.72.174 5.89.72.175 5.89.72.176 5.89.72.177 5.89.72.178 5.89.72.179 5.89.72.180 5.89.72.181 5.89.72.182 5.89.72.183 5.89.72.184 5.89.72.185 5.89.72.186 5.89.72.187 5.89.72.188 5.89.72.189 5.89.72.190 5.89.72.191 5.89.72.192 5.89.72.193 5.89.72.194 5.89.72.195 5.89.72.196 5.89.72.197 5.89.72.198 5.89.72.199 5.89.72.200 5.89.72.201 5.89.72.202 5.89.72.203 5.89.72.204 5.89.72.205 5.89.72.206 5.89.72.207 5.89.72.208 5.89.72.209 5.89.72.210 5.89.72.211 5.89.72.212 5.89.72.213 5.89.72.214 5.89.72.215 5.89.72.216 5.89.72.217 5.89.72.218 5.89.72.219 5.89.72.220 5.89.72.221 5.89.72.222 5.89.72.223 5.89.72.224 5.89.72.225 5.89.72.226 5.89.72.227 5.89.72.228 5.89.72.229 5.89.72.230 5.89.72.231 5.89.72.232 5.89.72.233 5.89.72.234 5.89.72.235 5.89.72.236 5.89.72.237 5.89.72.238 5.89.72.239 5.89.72.240 5.89.72.241 5.89.72.242 5.89.72.243 5.89.72.244 5.89.72.245 5.89.72.246 5.89.72.247 5.89.72.248 5.89.72.249 5.89.72.250 5.89.72.251 5.89.72.252 5.89.72.253 5.89.72.254 5.89.72.255 + 1.8K more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 5.88.0.0/13.

Announced prefix
5.88.0.0/13
Origin AS
AS30722
Announcement samples
3,976
Last seen
2026-07-23 05:23:54

Frequently Asked Questions

What is 5.89.72.0/21?

5.89.72.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 5.89.72.0 to 5.89.79.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 5.89.72.0/21 network?

The 5.89.72.0/21 range is allocated to Fastweb and announced via AS30722 from Italy.

Last updated: 2026-07-23 05:25:34 UTC
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