2.38.128.0/17 CIDR Lookup — 32.8K IPs Owned…

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.

80/100

Trusted

How this score is built

Baseline (neutral) 65
Long-established allocation (16y) +6
Has a reverse-DNS (PTR) record +5
Enterprise allocation +4
Trust score 80 / 100

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

Ranges inside 2.38.128.0/17

CIDR	IPs	Organization	ASN	Country
2.38.128.0/20	4.1K	Fastweb	AS30722	IT
2.38.144.0/20	4.1K	Fastweb	AS30722	IT
2.38.160.0/20	4.1K	Fastweb	AS30722	IT
2.38.176.0/20	4.1K	Fastweb	AS30722	IT
2.38.192.0/20	4.1K	Fastweb	AS30722	IT
2.38.208.0/20	4.1K	Fastweb	AS30722	IT
2.38.224.0/20	4.1K	Fastweb	AS30722	IT
2.38.240.0/20	4.1K	Fastweb	AS30722	IT

Geolocation

First 256 of 32,768 IP addresses in 2.38.128.0/17

2.38.128.0 2.38.128.1 2.38.128.2 2.38.128.3 2.38.128.4 2.38.128.5 2.38.128.6 2.38.128.7 2.38.128.8 2.38.128.9 2.38.128.10 2.38.128.11 2.38.128.12 2.38.128.13 2.38.128.14 2.38.128.15 2.38.128.16 2.38.128.17 2.38.128.18 2.38.128.19 2.38.128.20 2.38.128.21 2.38.128.22 2.38.128.23 2.38.128.24 2.38.128.25 2.38.128.26 2.38.128.27 2.38.128.28 2.38.128.29 2.38.128.30 2.38.128.31 2.38.128.32 2.38.128.33 2.38.128.34 2.38.128.35 2.38.128.36 2.38.128.37 2.38.128.38 2.38.128.39 2.38.128.40 2.38.128.41 2.38.128.42 2.38.128.43 2.38.128.44 2.38.128.45 2.38.128.46 2.38.128.47 2.38.128.48 2.38.128.49 2.38.128.50 2.38.128.51 2.38.128.52 2.38.128.53 2.38.128.54 2.38.128.55 2.38.128.56 2.38.128.57 2.38.128.58 2.38.128.59 2.38.128.60 2.38.128.61 2.38.128.62 2.38.128.63 2.38.128.64 2.38.128.65 2.38.128.66 2.38.128.67 2.38.128.68 2.38.128.69 2.38.128.70 2.38.128.71 2.38.128.72 2.38.128.73 2.38.128.74 2.38.128.75 2.38.128.76 2.38.128.77 2.38.128.78 2.38.128.79 2.38.128.80 2.38.128.81 2.38.128.82 2.38.128.83 2.38.128.84 2.38.128.85 2.38.128.86 2.38.128.87 2.38.128.88 2.38.128.89 2.38.128.90 2.38.128.91 2.38.128.92 2.38.128.93 2.38.128.94 2.38.128.95 2.38.128.96 2.38.128.97 2.38.128.98 2.38.128.99 2.38.128.100 2.38.128.101 2.38.128.102 2.38.128.103 2.38.128.104 2.38.128.105 2.38.128.106 2.38.128.107 2.38.128.108 2.38.128.109 2.38.128.110 2.38.128.111 2.38.128.112 2.38.128.113 2.38.128.114 2.38.128.115 2.38.128.116 2.38.128.117 2.38.128.118 2.38.128.119 2.38.128.120 2.38.128.121 2.38.128.122 2.38.128.123 2.38.128.124 2.38.128.125 2.38.128.126 2.38.128.127 2.38.128.128 2.38.128.129 2.38.128.130 2.38.128.131 2.38.128.132 2.38.128.133 2.38.128.134 2.38.128.135 2.38.128.136 2.38.128.137 2.38.128.138 2.38.128.139 2.38.128.140 2.38.128.141 2.38.128.142 2.38.128.143 2.38.128.144 2.38.128.145 2.38.128.146 2.38.128.147 2.38.128.148 2.38.128.149 2.38.128.150 2.38.128.151 2.38.128.152 2.38.128.153 2.38.128.154 2.38.128.155 2.38.128.156 2.38.128.157 2.38.128.158 2.38.128.159 2.38.128.160 2.38.128.161 2.38.128.162 2.38.128.163 2.38.128.164 2.38.128.165 2.38.128.166 2.38.128.167 2.38.128.168 2.38.128.169 2.38.128.170 2.38.128.171 2.38.128.172 2.38.128.173 2.38.128.174 2.38.128.175 2.38.128.176 2.38.128.177 2.38.128.178 2.38.128.179 2.38.128.180 2.38.128.181 2.38.128.182 2.38.128.183 2.38.128.184 2.38.128.185 2.38.128.186 2.38.128.187 2.38.128.188 2.38.128.189 2.38.128.190 2.38.128.191 2.38.128.192 2.38.128.193 2.38.128.194 2.38.128.195 2.38.128.196 2.38.128.197 2.38.128.198 2.38.128.199 2.38.128.200 2.38.128.201 2.38.128.202 2.38.128.203 2.38.128.204 2.38.128.205 2.38.128.206 2.38.128.207 2.38.128.208 2.38.128.209 2.38.128.210 2.38.128.211 2.38.128.212 2.38.128.213 2.38.128.214 2.38.128.215 2.38.128.216 2.38.128.217 2.38.128.218 2.38.128.219 2.38.128.220 2.38.128.221 2.38.128.222 2.38.128.223 2.38.128.224 2.38.128.225 2.38.128.226 2.38.128.227 2.38.128.228 2.38.128.229 2.38.128.230 2.38.128.231 2.38.128.232 2.38.128.233 2.38.128.234 2.38.128.235 2.38.128.236 2.38.128.237 2.38.128.238 2.38.128.239 2.38.128.240 2.38.128.241 2.38.128.242 2.38.128.243 2.38.128.244 2.38.128.245 2.38.128.246 2.38.128.247 2.38.128.248 2.38.128.249 2.38.128.250 2.38.128.251 2.38.128.252 2.38.128.253 2.38.128.254 2.38.128.255 + 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

2.38.128.0/17

Origin AS

AS30722

Announcement samples

4,957

Last seen

2026-07-23 04:03:24

Frequently Asked Questions

What is 2.38.128.0/17?

2.38.128.0/17 is a CIDR network block containing 32,768 IPv4 addresses (from 2.38.128.0 to 2.38.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 2.38.128.0/17 network?

The 2.38.128.0/17 range is allocated to Fastweb and announced via AS30722 from Italy.