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CIDR Range

103.209.100.0/23

512 IPs /23 IPTELECOM ASIA AS55799 Japan APNIC
Addresses
512
512
IP Range
103.209.100.0
→ 103.209.101.255
Sub-ranges
4+
within this block
PTR Density
0.0%
0 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.

61/100
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 103.209.100.0/23

CIDRIPsOrganizationASNCountry
103.209.100.0/24 256 IPTELECOM ASIA AS55799 MY
103.209.100.0/24 256 IPTELECOM ASIA AS55799 HK
103.209.101.0/24 256 IPTELECOM ASIA AS55799 MY
103.209.101.0/24 256 IPTELECOM ASIA AS55799 JP

First 256 of 512 IP addresses in 103.209.100.0/23

103.209.100.0 103.209.100.1 103.209.100.2 103.209.100.3 103.209.100.4 103.209.100.5 103.209.100.6 103.209.100.7 103.209.100.8 103.209.100.9 103.209.100.10 103.209.100.11 103.209.100.12 103.209.100.13 103.209.100.14 103.209.100.15 103.209.100.16 103.209.100.17 103.209.100.18 103.209.100.19 103.209.100.20 103.209.100.21 103.209.100.22 103.209.100.23 103.209.100.24 103.209.100.25 103.209.100.26 103.209.100.27 103.209.100.28 103.209.100.29 103.209.100.30 103.209.100.31 103.209.100.32 103.209.100.33 103.209.100.34 103.209.100.35 103.209.100.36 103.209.100.37 103.209.100.38 103.209.100.39 103.209.100.40 103.209.100.41 103.209.100.42 103.209.100.43 103.209.100.44 103.209.100.45 103.209.100.46 103.209.100.47 103.209.100.48 103.209.100.49 103.209.100.50 103.209.100.51 103.209.100.52 103.209.100.53 103.209.100.54 103.209.100.55 103.209.100.56 103.209.100.57 103.209.100.58 103.209.100.59 103.209.100.60 103.209.100.61 103.209.100.62 103.209.100.63 103.209.100.64 103.209.100.65 103.209.100.66 103.209.100.67 103.209.100.68 103.209.100.69 103.209.100.70 103.209.100.71 103.209.100.72 103.209.100.73 103.209.100.74 103.209.100.75 103.209.100.76 103.209.100.77 103.209.100.78 103.209.100.79 103.209.100.80 103.209.100.81 103.209.100.82 103.209.100.83 103.209.100.84 103.209.100.85 103.209.100.86 103.209.100.87 103.209.100.88 103.209.100.89 103.209.100.90 103.209.100.91 103.209.100.92 103.209.100.93 103.209.100.94 103.209.100.95 103.209.100.96 103.209.100.97 103.209.100.98 103.209.100.99 103.209.100.100 103.209.100.101 103.209.100.102 103.209.100.103 103.209.100.104 103.209.100.105 103.209.100.106 103.209.100.107 103.209.100.108 103.209.100.109 103.209.100.110 103.209.100.111 103.209.100.112 103.209.100.113 103.209.100.114 103.209.100.115 103.209.100.116 103.209.100.117 103.209.100.118 103.209.100.119 103.209.100.120 103.209.100.121 103.209.100.122 103.209.100.123 103.209.100.124 103.209.100.125 103.209.100.126 103.209.100.127 103.209.100.128 103.209.100.129 103.209.100.130 103.209.100.131 103.209.100.132 103.209.100.133 103.209.100.134 103.209.100.135 103.209.100.136 103.209.100.137 103.209.100.138 103.209.100.139 103.209.100.140 103.209.100.141 103.209.100.142 103.209.100.143 103.209.100.144 103.209.100.145 103.209.100.146 103.209.100.147 103.209.100.148 103.209.100.149 103.209.100.150 103.209.100.151 103.209.100.152 103.209.100.153 103.209.100.154 103.209.100.155 103.209.100.156 103.209.100.157 103.209.100.158 103.209.100.159 103.209.100.160 103.209.100.161 103.209.100.162 103.209.100.163 103.209.100.164 103.209.100.165 103.209.100.166 103.209.100.167 103.209.100.168 103.209.100.169 103.209.100.170 103.209.100.171 103.209.100.172 103.209.100.173 103.209.100.174 103.209.100.175 103.209.100.176 103.209.100.177 103.209.100.178 103.209.100.179 103.209.100.180 103.209.100.181 103.209.100.182 103.209.100.183 103.209.100.184 103.209.100.185 103.209.100.186 103.209.100.187 103.209.100.188 103.209.100.189 103.209.100.190 103.209.100.191 103.209.100.192 103.209.100.193 103.209.100.194 103.209.100.195 103.209.100.196 103.209.100.197 103.209.100.198 103.209.100.199 103.209.100.200 103.209.100.201 103.209.100.202 103.209.100.203 103.209.100.204 103.209.100.205 103.209.100.206 103.209.100.207 103.209.100.208 103.209.100.209 103.209.100.210 103.209.100.211 103.209.100.212 103.209.100.213 103.209.100.214 103.209.100.215 103.209.100.216 103.209.100.217 103.209.100.218 103.209.100.219 103.209.100.220 103.209.100.221 103.209.100.222 103.209.100.223 103.209.100.224 103.209.100.225 103.209.100.226 103.209.100.227 103.209.100.228 103.209.100.229 103.209.100.230 103.209.100.231 103.209.100.232 103.209.100.233 103.209.100.234 103.209.100.235 103.209.100.236 103.209.100.237 103.209.100.238 103.209.100.239 103.209.100.240 103.209.100.241 103.209.100.242 103.209.100.243 103.209.100.244 103.209.100.245 103.209.100.246 103.209.100.247 103.209.100.248 103.209.100.249 103.209.100.250 103.209.100.251 103.209.100.252 103.209.100.253 103.209.100.254 103.209.100.255 + 256 more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 103.209.100.0/22.

Announced prefix
103.209.100.0/22
Origin AS
AS63916
⚠ 2 origins (MOAS)
Announcement samples
201,622
Last seen
2026-07-03 08:21:03
Origins seen: AS63916 · 201,622 AS55799 · 123,987

Frequently Asked Questions

What is 103.209.100.0/23?

103.209.100.0/23 is a CIDR network block containing 512 IPv4 addresses (from 103.209.100.0 to 103.209.101.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 103.209.100.0/23 network?

The 103.209.100.0/23 range is allocated to IPTELECOM ASIA and announced via AS55799 from Japan.

Last updated: 2026-07-23 17:55:31 UTC
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