134.129.16.0/21 CIDR Lookup — 2.0K 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.

76/100

Moderate

How this score is built

Baseline (neutral) 65
Long-established allocation (37y) +6
Has a reverse-DNS (PTR) record +5
Trust score 76 / 100

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

Geolocation

First 256 of 2,048 IP addresses in 134.129.16.0/21

134.129.16.0 134.129.16.1 134.129.16.2 134.129.16.3 134.129.16.4 134.129.16.5 134.129.16.6 134.129.16.7 134.129.16.8 134.129.16.9 134.129.16.10 134.129.16.11 134.129.16.12 134.129.16.13 134.129.16.14 134.129.16.15 134.129.16.16 134.129.16.17 134.129.16.18 134.129.16.19 134.129.16.20 134.129.16.21 134.129.16.22 134.129.16.23 134.129.16.24 134.129.16.25 134.129.16.26 134.129.16.27 134.129.16.28 134.129.16.29 134.129.16.30 134.129.16.31 134.129.16.32 134.129.16.33 134.129.16.34 134.129.16.35 134.129.16.36 134.129.16.37 134.129.16.38 134.129.16.39 134.129.16.40 134.129.16.41 134.129.16.42 134.129.16.43 134.129.16.44 134.129.16.45 134.129.16.46 134.129.16.47 134.129.16.48 134.129.16.49 134.129.16.50 134.129.16.51 134.129.16.52 134.129.16.53 134.129.16.54 134.129.16.55 134.129.16.56 134.129.16.57 134.129.16.58 134.129.16.59 134.129.16.60 134.129.16.61 134.129.16.62 134.129.16.63 134.129.16.64 134.129.16.65 134.129.16.66 134.129.16.67 134.129.16.68 134.129.16.69 134.129.16.70 134.129.16.71 134.129.16.72 134.129.16.73 134.129.16.74 134.129.16.75 134.129.16.76 134.129.16.77 134.129.16.78 134.129.16.79 134.129.16.80 134.129.16.81 134.129.16.82 134.129.16.83 134.129.16.84 134.129.16.85 134.129.16.86 134.129.16.87 134.129.16.88 134.129.16.89 134.129.16.90 134.129.16.91 134.129.16.92 134.129.16.93 134.129.16.94 134.129.16.95 134.129.16.96 134.129.16.97 134.129.16.98 134.129.16.99 134.129.16.100 134.129.16.101 134.129.16.102 134.129.16.103 134.129.16.104 134.129.16.105 134.129.16.106 134.129.16.107 134.129.16.108 134.129.16.109 134.129.16.110 134.129.16.111 134.129.16.112 134.129.16.113 134.129.16.114 134.129.16.115 134.129.16.116 134.129.16.117 134.129.16.118 134.129.16.119 134.129.16.120 134.129.16.121 134.129.16.122 134.129.16.123 134.129.16.124 134.129.16.125 134.129.16.126 134.129.16.127 134.129.16.128 134.129.16.129 134.129.16.130 134.129.16.131 134.129.16.132 134.129.16.133 134.129.16.134 134.129.16.135 134.129.16.136 134.129.16.137 134.129.16.138 134.129.16.139 134.129.16.140 134.129.16.141 134.129.16.142 134.129.16.143 134.129.16.144 134.129.16.145 134.129.16.146 134.129.16.147 134.129.16.148 134.129.16.149 134.129.16.150 134.129.16.151 134.129.16.152 134.129.16.153 134.129.16.154 134.129.16.155 134.129.16.156 134.129.16.157 134.129.16.158 134.129.16.159 134.129.16.160 134.129.16.161 134.129.16.162 134.129.16.163 134.129.16.164 134.129.16.165 134.129.16.166 134.129.16.167 134.129.16.168 134.129.16.169 134.129.16.170 134.129.16.171 134.129.16.172 134.129.16.173 134.129.16.174 134.129.16.175 134.129.16.176 134.129.16.177 134.129.16.178 134.129.16.179 134.129.16.180 134.129.16.181 134.129.16.182 134.129.16.183 134.129.16.184 134.129.16.185 134.129.16.186 134.129.16.187 134.129.16.188 134.129.16.189 134.129.16.190 134.129.16.191 134.129.16.192 134.129.16.193 134.129.16.194 134.129.16.195 134.129.16.196 134.129.16.197 134.129.16.198 134.129.16.199 134.129.16.200 134.129.16.201 134.129.16.202 134.129.16.203 134.129.16.204 134.129.16.205 134.129.16.206 134.129.16.207 134.129.16.208 134.129.16.209 134.129.16.210 134.129.16.211 134.129.16.212 134.129.16.213 134.129.16.214 134.129.16.215 134.129.16.216 134.129.16.217 134.129.16.218 134.129.16.219 134.129.16.220 134.129.16.221 134.129.16.222 134.129.16.223 134.129.16.224 134.129.16.225 134.129.16.226 134.129.16.227 134.129.16.228 134.129.16.229 134.129.16.230 134.129.16.231 134.129.16.232 134.129.16.233 134.129.16.234 134.129.16.235 134.129.16.236 134.129.16.237 134.129.16.238 134.129.16.239 134.129.16.240 134.129.16.241 134.129.16.242 134.129.16.243 134.129.16.244 134.129.16.245 134.129.16.246 134.129.16.247 134.129.16.248 134.129.16.249 134.129.16.250 134.129.16.251 134.129.16.252 134.129.16.253 134.129.16.254 134.129.16.255 + 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 134.129.0.0/16.

Announced prefix

134.129.0.0/16

Origin AS

AS19530

Announcement samples

16,987

Last seen

2026-07-23 17:53:19

Frequently Asked Questions

What is 134.129.16.0/21?

134.129.16.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 134.129.16.0 to 134.129.23.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 134.129.16.0/21 network?

The 134.129.16.0/21 range is allocated to State of North Dakota, ITD and announced via AS19530 from United States.