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CIDR Range

138.128.238.0/24

256 IPs /24 Secom, Inc AS16832 United States ARIN
Addresses
256
256
IP Range
138.128.238.0
→ 138.128.238.255
Sub-ranges
6+
within this block
PTR Density
0.0%
0 of 256 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.

68/100
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 138.128.238.0/24

CIDRIPsOrganizationASNCountry
138.128.238.0/25 128 Secom, Inc AS16832 US
138.128.238.0/26 64 Secom, Inc AS16832 US
138.128.238.64/26 64 Secom, Inc AS16832 US
138.128.238.192/26 64 Secom, Inc AS16832 US
138.128.238.128/27 32 Secom, Inc AS16832 US
138.128.238.160/27 32 Secom, Inc AS16832 US

Geolocation

All 256 IP addresses in 138.128.238.0/24

138.128.238.0 138.128.238.1 138.128.238.2 138.128.238.3 138.128.238.4 138.128.238.5 138.128.238.6 138.128.238.7 138.128.238.8 138.128.238.9 138.128.238.10 138.128.238.11 138.128.238.12 138.128.238.13 138.128.238.14 138.128.238.15 138.128.238.16 138.128.238.17 138.128.238.18 138.128.238.19 138.128.238.20 138.128.238.21 138.128.238.22 138.128.238.23 138.128.238.24 138.128.238.25 138.128.238.26 138.128.238.27 138.128.238.28 138.128.238.29 138.128.238.30 138.128.238.31 138.128.238.32 138.128.238.33 138.128.238.34 138.128.238.35 138.128.238.36 138.128.238.37 138.128.238.38 138.128.238.39 138.128.238.40 138.128.238.41 138.128.238.42 138.128.238.43 138.128.238.44 138.128.238.45 138.128.238.46 138.128.238.47 138.128.238.48 138.128.238.49 138.128.238.50 138.128.238.51 138.128.238.52 138.128.238.53 138.128.238.54 138.128.238.55 138.128.238.56 138.128.238.57 138.128.238.58 138.128.238.59 138.128.238.60 138.128.238.61 138.128.238.62 138.128.238.63 138.128.238.64 138.128.238.65 138.128.238.66 138.128.238.67 138.128.238.68 138.128.238.69 138.128.238.70 138.128.238.71 138.128.238.72 138.128.238.73 138.128.238.74 138.128.238.75 138.128.238.76 138.128.238.77 138.128.238.78 138.128.238.79 138.128.238.80 138.128.238.81 138.128.238.82 138.128.238.83 138.128.238.84 138.128.238.85 138.128.238.86 138.128.238.87 138.128.238.88 138.128.238.89 138.128.238.90 138.128.238.91 138.128.238.92 138.128.238.93 138.128.238.94 138.128.238.95 138.128.238.96 138.128.238.97 138.128.238.98 138.128.238.99 138.128.238.100 138.128.238.101 138.128.238.102 138.128.238.103 138.128.238.104 138.128.238.105 138.128.238.106 138.128.238.107 138.128.238.108 138.128.238.109 138.128.238.110 138.128.238.111 138.128.238.112 138.128.238.113 138.128.238.114 138.128.238.115 138.128.238.116 138.128.238.117 138.128.238.118 138.128.238.119 138.128.238.120 138.128.238.121 138.128.238.122 138.128.238.123 138.128.238.124 138.128.238.125 138.128.238.126 138.128.238.127 138.128.238.128 138.128.238.129 138.128.238.130 138.128.238.131 138.128.238.132 138.128.238.133 138.128.238.134 138.128.238.135 138.128.238.136 138.128.238.137 138.128.238.138 138.128.238.139 138.128.238.140 138.128.238.141 138.128.238.142 138.128.238.143 138.128.238.144 138.128.238.145 138.128.238.146 138.128.238.147 138.128.238.148 138.128.238.149 138.128.238.150 138.128.238.151 138.128.238.152 138.128.238.153 138.128.238.154 138.128.238.155 138.128.238.156 138.128.238.157 138.128.238.158 138.128.238.159 138.128.238.160 138.128.238.161 138.128.238.162 138.128.238.163 138.128.238.164 138.128.238.165 138.128.238.166 138.128.238.167 138.128.238.168 138.128.238.169 138.128.238.170 138.128.238.171 138.128.238.172 138.128.238.173 138.128.238.174 138.128.238.175 138.128.238.176 138.128.238.177 138.128.238.178 138.128.238.179 138.128.238.180 138.128.238.181 138.128.238.182 138.128.238.183 138.128.238.184 138.128.238.185 138.128.238.186 138.128.238.187 138.128.238.188 138.128.238.189 138.128.238.190 138.128.238.191 138.128.238.192 138.128.238.193 138.128.238.194 138.128.238.195 138.128.238.196 138.128.238.197 138.128.238.198 138.128.238.199 138.128.238.200 138.128.238.201 138.128.238.202 138.128.238.203 138.128.238.204 138.128.238.205 138.128.238.206 138.128.238.207 138.128.238.208 138.128.238.209 138.128.238.210 138.128.238.211 138.128.238.212 138.128.238.213 138.128.238.214 138.128.238.215 138.128.238.216 138.128.238.217 138.128.238.218 138.128.238.219 138.128.238.220 138.128.238.221 138.128.238.222 138.128.238.223 138.128.238.224 138.128.238.225 138.128.238.226 138.128.238.227 138.128.238.228 138.128.238.229 138.128.238.230 138.128.238.231 138.128.238.232 138.128.238.233 138.128.238.234 138.128.238.235 138.128.238.236 138.128.238.237 138.128.238.238 138.128.238.239 138.128.238.240 138.128.238.241 138.128.238.242 138.128.238.243 138.128.238.244 138.128.238.245 138.128.238.246 138.128.238.247 138.128.238.248 138.128.238.249 138.128.238.250 138.128.238.251 138.128.238.252 138.128.238.253 138.128.238.254 138.128.238.255

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 138.128.232.0/21.

Announced prefix
138.128.232.0/21
Origin AS
AS16832
Announcement samples
13,844
Last seen
2026-07-29 18:59:18

Frequently Asked Questions

What is 138.128.238.0/24?

138.128.238.0/24 is a CIDR network block containing 256 IPv4 addresses (from 138.128.238.0 to 138.128.238.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 138.128.238.0/24 network?

The 138.128.238.0/24 range is allocated to Secom, Inc and announced via AS16832 from United States.

How many IP addresses are in 138.128.238.0/24?

138.128.238.0/24 contains exactly 256 usable IPv4 addresses. A /24 prefix length means 256 addresses are covered by this single routing entry.

Last updated: 2026-07-29 19:10:33 UTC
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