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CIDR Range

220.129.128.0/20

4.1K IPs /20 Data Communication Business Group AS3462 Taiwan APNIC
Addresses
4,096
4.1K
IP Range
220.129.128.0
→ 220.129.143.255
Sub-ranges
4+
within this block
PTR Density
100.0%
4.1K of 4.1K 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 220.129.128.0/20

CIDRIPsOrganizationASNCountry
220.129.128.0/21 2.0K Data Communication Business Group AS3462 TW
220.129.136.0/22 1.0K Data Communication Business Group AS3462 TW
220.129.140.0/23 512 Data Communication Business Group AS3462 TW
220.129.142.0/23 512 Data Communication Business Group AS3462 TW

Geolocation

First 256 of 4,096 IP addresses in 220.129.128.0/20

220.129.128.0 220.129.128.1 220.129.128.2 220.129.128.3 220.129.128.4 220.129.128.5 220.129.128.6 220.129.128.7 220.129.128.8 220.129.128.9 220.129.128.10 220.129.128.11 220.129.128.12 220.129.128.13 220.129.128.14 220.129.128.15 220.129.128.16 220.129.128.17 220.129.128.18 220.129.128.19 220.129.128.20 220.129.128.21 220.129.128.22 220.129.128.23 220.129.128.24 220.129.128.25 220.129.128.26 220.129.128.27 220.129.128.28 220.129.128.29 220.129.128.30 220.129.128.31 220.129.128.32 220.129.128.33 220.129.128.34 220.129.128.35 220.129.128.36 220.129.128.37 220.129.128.38 220.129.128.39 220.129.128.40 220.129.128.41 220.129.128.42 220.129.128.43 220.129.128.44 220.129.128.45 220.129.128.46 220.129.128.47 220.129.128.48 220.129.128.49 220.129.128.50 220.129.128.51 220.129.128.52 220.129.128.53 220.129.128.54 220.129.128.55 220.129.128.56 220.129.128.57 220.129.128.58 220.129.128.59 220.129.128.60 220.129.128.61 220.129.128.62 220.129.128.63 220.129.128.64 220.129.128.65 220.129.128.66 220.129.128.67 220.129.128.68 220.129.128.69 220.129.128.70 220.129.128.71 220.129.128.72 220.129.128.73 220.129.128.74 220.129.128.75 220.129.128.76 220.129.128.77 220.129.128.78 220.129.128.79 220.129.128.80 220.129.128.81 220.129.128.82 220.129.128.83 220.129.128.84 220.129.128.85 220.129.128.86 220.129.128.87 220.129.128.88 220.129.128.89 220.129.128.90 220.129.128.91 220.129.128.92 220.129.128.93 220.129.128.94 220.129.128.95 220.129.128.96 220.129.128.97 220.129.128.98 220.129.128.99 220.129.128.100 220.129.128.101 220.129.128.102 220.129.128.103 220.129.128.104 220.129.128.105 220.129.128.106 220.129.128.107 220.129.128.108 220.129.128.109 220.129.128.110 220.129.128.111 220.129.128.112 220.129.128.113 220.129.128.114 220.129.128.115 220.129.128.116 220.129.128.117 220.129.128.118 220.129.128.119 220.129.128.120 220.129.128.121 220.129.128.122 220.129.128.123 220.129.128.124 220.129.128.125 220.129.128.126 220.129.128.127 220.129.128.128 220.129.128.129 220.129.128.130 220.129.128.131 220.129.128.132 220.129.128.133 220.129.128.134 220.129.128.135 220.129.128.136 220.129.128.137 220.129.128.138 220.129.128.139 220.129.128.140 220.129.128.141 220.129.128.142 220.129.128.143 220.129.128.144 220.129.128.145 220.129.128.146 220.129.128.147 220.129.128.148 220.129.128.149 220.129.128.150 220.129.128.151 220.129.128.152 220.129.128.153 220.129.128.154 220.129.128.155 220.129.128.156 220.129.128.157 220.129.128.158 220.129.128.159 220.129.128.160 220.129.128.161 220.129.128.162 220.129.128.163 220.129.128.164 220.129.128.165 220.129.128.166 220.129.128.167 220.129.128.168 220.129.128.169 220.129.128.170 220.129.128.171 220.129.128.172 220.129.128.173 220.129.128.174 220.129.128.175 220.129.128.176 220.129.128.177 220.129.128.178 220.129.128.179 220.129.128.180 220.129.128.181 220.129.128.182 220.129.128.183 220.129.128.184 220.129.128.185 220.129.128.186 220.129.128.187 220.129.128.188 220.129.128.189 220.129.128.190 220.129.128.191 220.129.128.192 220.129.128.193 220.129.128.194 220.129.128.195 220.129.128.196 220.129.128.197 220.129.128.198 220.129.128.199 220.129.128.200 220.129.128.201 220.129.128.202 220.129.128.203 220.129.128.204 220.129.128.205 220.129.128.206 220.129.128.207 220.129.128.208 220.129.128.209 220.129.128.210 220.129.128.211 220.129.128.212 220.129.128.213 220.129.128.214 220.129.128.215 220.129.128.216 220.129.128.217 220.129.128.218 220.129.128.219 220.129.128.220 220.129.128.221 220.129.128.222 220.129.128.223 220.129.128.224 220.129.128.225 220.129.128.226 220.129.128.227 220.129.128.228 220.129.128.229 220.129.128.230 220.129.128.231 220.129.128.232 220.129.128.233 220.129.128.234 220.129.128.235 220.129.128.236 220.129.128.237 220.129.128.238 220.129.128.239 220.129.128.240 220.129.128.241 220.129.128.242 220.129.128.243 220.129.128.244 220.129.128.245 220.129.128.246 220.129.128.247 220.129.128.248 220.129.128.249 220.129.128.250 220.129.128.251 220.129.128.252 220.129.128.253 220.129.128.254 220.129.128.255 + 3.8K more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 220.129.0.0/16.

Announced prefix
220.129.0.0/16
Origin AS
AS3462
Announcement samples
10,473
Last seen
2026-07-18 10:52:32

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files.

Date Event From To
2026-05-10 New Allocation — TW

Frequently Asked Questions

What is 220.129.128.0/20?

220.129.128.0/20 is a CIDR network block containing 4,096 IPv4 addresses (from 220.129.128.0 to 220.129.143.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 220.129.128.0/20 network?

The 220.129.128.0/20 range is allocated to Data Communication Business Group and announced via AS3462 from Taiwan.

Last updated: 2026-07-18 12:25:31 UTC
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