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CIDR Range

77.166.80.0/21

2.0K IPs /21 KPN B.V. AS1136 The Netherlands RIPE
Addresses
2,048
2.0K
IP Range
77.166.80.0
→ 77.166.87.255
Sub-ranges
13+
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.

76/100
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 77.166.80.0/21

CIDRIPsOrganizationASNCountry
77.166.84.0/22 1.0K KPN B.V. AS1136 NL
77.166.86.0/23 512 KPN B.V. AS1136 NL
77.166.84.0/23 512 KPN B.V. AS1136 NL
77.166.80.0/24 256 KPN B.V. AS1136 NL
77.166.87.0/24 256 KPN B.V. AS1136 NL
77.166.83.0/24 256 KPN B.V. AS1136 NL
77.166.81.0/24 256 KPN B.V. AS1136 NL
77.166.83.0/25 128 KPN B.V. AS1136 NL
77.166.82.128/25 128 KPN B.V. AS1136 NL
77.166.82.0/25 128 KPN B.V. AS1136 NL
77.166.86.0/25 128 KPN B.V. AS1136 NL
77.166.86.128/25 128 KPN B.V. AS1136 NL
77.166.83.128/25 128 KPN B.V. AS1136 NL

Geolocation

First 256 of 2,048 IP addresses in 77.166.80.0/21

77.166.80.0 77.166.80.1 77.166.80.2 77.166.80.3 77.166.80.4 77.166.80.5 77.166.80.6 77.166.80.7 77.166.80.8 77.166.80.9 77.166.80.10 77.166.80.11 77.166.80.12 77.166.80.13 77.166.80.14 77.166.80.15 77.166.80.16 77.166.80.17 77.166.80.18 77.166.80.19 77.166.80.20 77.166.80.21 77.166.80.22 77.166.80.23 77.166.80.24 77.166.80.25 77.166.80.26 77.166.80.27 77.166.80.28 77.166.80.29 77.166.80.30 77.166.80.31 77.166.80.32 77.166.80.33 77.166.80.34 77.166.80.35 77.166.80.36 77.166.80.37 77.166.80.38 77.166.80.39 77.166.80.40 77.166.80.41 77.166.80.42 77.166.80.43 77.166.80.44 77.166.80.45 77.166.80.46 77.166.80.47 77.166.80.48 77.166.80.49 77.166.80.50 77.166.80.51 77.166.80.52 77.166.80.53 77.166.80.54 77.166.80.55 77.166.80.56 77.166.80.57 77.166.80.58 77.166.80.59 77.166.80.60 77.166.80.61 77.166.80.62 77.166.80.63 77.166.80.64 77.166.80.65 77.166.80.66 77.166.80.67 77.166.80.68 77.166.80.69 77.166.80.70 77.166.80.71 77.166.80.72 77.166.80.73 77.166.80.74 77.166.80.75 77.166.80.76 77.166.80.77 77.166.80.78 77.166.80.79 77.166.80.80 77.166.80.81 77.166.80.82 77.166.80.83 77.166.80.84 77.166.80.85 77.166.80.86 77.166.80.87 77.166.80.88 77.166.80.89 77.166.80.90 77.166.80.91 77.166.80.92 77.166.80.93 77.166.80.94 77.166.80.95 77.166.80.96 77.166.80.97 77.166.80.98 77.166.80.99 77.166.80.100 77.166.80.101 77.166.80.102 77.166.80.103 77.166.80.104 77.166.80.105 77.166.80.106 77.166.80.107 77.166.80.108 77.166.80.109 77.166.80.110 77.166.80.111 77.166.80.112 77.166.80.113 77.166.80.114 77.166.80.115 77.166.80.116 77.166.80.117 77.166.80.118 77.166.80.119 77.166.80.120 77.166.80.121 77.166.80.122 77.166.80.123 77.166.80.124 77.166.80.125 77.166.80.126 77.166.80.127 77.166.80.128 77.166.80.129 77.166.80.130 77.166.80.131 77.166.80.132 77.166.80.133 77.166.80.134 77.166.80.135 77.166.80.136 77.166.80.137 77.166.80.138 77.166.80.139 77.166.80.140 77.166.80.141 77.166.80.142 77.166.80.143 77.166.80.144 77.166.80.145 77.166.80.146 77.166.80.147 77.166.80.148 77.166.80.149 77.166.80.150 77.166.80.151 77.166.80.152 77.166.80.153 77.166.80.154 77.166.80.155 77.166.80.156 77.166.80.157 77.166.80.158 77.166.80.159 77.166.80.160 77.166.80.161 77.166.80.162 77.166.80.163 77.166.80.164 77.166.80.165 77.166.80.166 77.166.80.167 77.166.80.168 77.166.80.169 77.166.80.170 77.166.80.171 77.166.80.172 77.166.80.173 77.166.80.174 77.166.80.175 77.166.80.176 77.166.80.177 77.166.80.178 77.166.80.179 77.166.80.180 77.166.80.181 77.166.80.182 77.166.80.183 77.166.80.184 77.166.80.185 77.166.80.186 77.166.80.187 77.166.80.188 77.166.80.189 77.166.80.190 77.166.80.191 77.166.80.192 77.166.80.193 77.166.80.194 77.166.80.195 77.166.80.196 77.166.80.197 77.166.80.198 77.166.80.199 77.166.80.200 77.166.80.201 77.166.80.202 77.166.80.203 77.166.80.204 77.166.80.205 77.166.80.206 77.166.80.207 77.166.80.208 77.166.80.209 77.166.80.210 77.166.80.211 77.166.80.212 77.166.80.213 77.166.80.214 77.166.80.215 77.166.80.216 77.166.80.217 77.166.80.218 77.166.80.219 77.166.80.220 77.166.80.221 77.166.80.222 77.166.80.223 77.166.80.224 77.166.80.225 77.166.80.226 77.166.80.227 77.166.80.228 77.166.80.229 77.166.80.230 77.166.80.231 77.166.80.232 77.166.80.233 77.166.80.234 77.166.80.235 77.166.80.236 77.166.80.237 77.166.80.238 77.166.80.239 77.166.80.240 77.166.80.241 77.166.80.242 77.166.80.243 77.166.80.244 77.166.80.245 77.166.80.246 77.166.80.247 77.166.80.248 77.166.80.249 77.166.80.250 77.166.80.251 77.166.80.252 77.166.80.253 77.166.80.254 77.166.80.255 + 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 77.160.0.0/13.

Announced prefix
77.160.0.0/13
Origin AS
AS1136
Announcement samples
9,489
Last seen
2026-07-19 22:02:05

Frequently Asked Questions

What is 77.166.80.0/21?

77.166.80.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 77.166.80.0 to 77.166.87.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 77.166.80.0/21 network?

The 77.166.80.0/21 range is allocated to KPN B.V. and announced via AS1136 from The Netherlands.

Last updated: 2026-07-19 22:55:32 UTC
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