164.100.144.0/20 CIDR Lookup — 4.1K IPs

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 (33y) +6
Has a reverse-DNS (PTR) record +5
Trust score 76 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Ranges inside 164.100.144.0/20

CIDR	IPs	Organization	ASN	Country
164.100.152.0/21	2.0K	—	—	IN
164.100.152.0/21	2.0K	National Informatics Centre	AS4758	IN
164.100.152.0/21	2.0K	National Informatics Centre	AS4758	IN
164.100.144.0/22	1.0K	—	—	IN
164.100.148.0/22	1.0K	—	—	IN
164.100.148.0/22	1.0K	National Informatics Centre	AS4758	IN
164.100.148.0/22	1.0K	National Informatics Centre	AS4758	IN
164.100.147.0/24	256	National Informatics Centre	AS4758	IN
164.100.147.0/24	256	National Informatics Centre	AS4758	IN
164.100.146.0/24	256	NKN Core Network	AS55824	IN
164.100.146.0/24	256	NKN Core Network	AS55824	IN
164.100.145.0/24	256	NKN Core Network	AS55824	IN
164.100.145.0/24	256	NKN Core Network	AS55824	IN
164.100.144.0/24	256	National Informatics Centre	AS4758	IN
164.100.144.0/24	256	National Informatics Centre	AS4758	IN

Geolocation

First 256 of 4,096 IP addresses in 164.100.144.0/20

164.100.144.0 164.100.144.1 164.100.144.2 164.100.144.3 164.100.144.4 164.100.144.5 164.100.144.6 164.100.144.7 164.100.144.8 164.100.144.9 164.100.144.10 164.100.144.11 164.100.144.12 164.100.144.13 164.100.144.14 164.100.144.15 164.100.144.16 164.100.144.17 164.100.144.18 164.100.144.19 164.100.144.20 164.100.144.21 164.100.144.22 164.100.144.23 164.100.144.24 164.100.144.25 164.100.144.26 164.100.144.27 164.100.144.28 164.100.144.29 164.100.144.30 164.100.144.31 164.100.144.32 164.100.144.33 164.100.144.34 164.100.144.35 164.100.144.36 164.100.144.37 164.100.144.38 164.100.144.39 164.100.144.40 164.100.144.41 164.100.144.42 164.100.144.43 164.100.144.44 164.100.144.45 164.100.144.46 164.100.144.47 164.100.144.48 164.100.144.49 164.100.144.50 164.100.144.51 164.100.144.52 164.100.144.53 164.100.144.54 164.100.144.55 164.100.144.56 164.100.144.57 164.100.144.58 164.100.144.59 164.100.144.60 164.100.144.61 164.100.144.62 164.100.144.63 164.100.144.64 164.100.144.65 164.100.144.66 164.100.144.67 164.100.144.68 164.100.144.69 164.100.144.70 164.100.144.71 164.100.144.72 164.100.144.73 164.100.144.74 164.100.144.75 164.100.144.76 164.100.144.77 164.100.144.78 164.100.144.79 164.100.144.80 164.100.144.81 164.100.144.82 164.100.144.83 164.100.144.84 164.100.144.85 164.100.144.86 164.100.144.87 164.100.144.88 164.100.144.89 164.100.144.90 164.100.144.91 164.100.144.92 164.100.144.93 164.100.144.94 164.100.144.95 164.100.144.96 164.100.144.97 164.100.144.98 164.100.144.99 164.100.144.100 164.100.144.101 164.100.144.102 164.100.144.103 164.100.144.104 164.100.144.105 164.100.144.106 164.100.144.107 164.100.144.108 164.100.144.109 164.100.144.110 164.100.144.111 164.100.144.112 164.100.144.113 164.100.144.114 164.100.144.115 164.100.144.116 164.100.144.117 164.100.144.118 164.100.144.119 164.100.144.120 164.100.144.121 164.100.144.122 164.100.144.123 164.100.144.124 164.100.144.125 164.100.144.126 164.100.144.127 164.100.144.128 164.100.144.129 164.100.144.130 164.100.144.131 164.100.144.132 164.100.144.133 164.100.144.134 164.100.144.135 164.100.144.136 164.100.144.137 164.100.144.138 164.100.144.139 164.100.144.140 164.100.144.141 164.100.144.142 164.100.144.143 164.100.144.144 164.100.144.145 164.100.144.146 164.100.144.147 164.100.144.148 164.100.144.149 164.100.144.150 164.100.144.151 164.100.144.152 164.100.144.153 164.100.144.154 164.100.144.155 164.100.144.156 164.100.144.157 164.100.144.158 164.100.144.159 164.100.144.160 164.100.144.161 164.100.144.162 164.100.144.163 164.100.144.164 164.100.144.165 164.100.144.166 164.100.144.167 164.100.144.168 164.100.144.169 164.100.144.170 164.100.144.171 164.100.144.172 164.100.144.173 164.100.144.174 164.100.144.175 164.100.144.176 164.100.144.177 164.100.144.178 164.100.144.179 164.100.144.180 164.100.144.181 164.100.144.182 164.100.144.183 164.100.144.184 164.100.144.185 164.100.144.186 164.100.144.187 164.100.144.188 164.100.144.189 164.100.144.190 164.100.144.191 164.100.144.192 164.100.144.193 164.100.144.194 164.100.144.195 164.100.144.196 164.100.144.197 164.100.144.198 164.100.144.199 164.100.144.200 164.100.144.201 164.100.144.202 164.100.144.203 164.100.144.204 164.100.144.205 164.100.144.206 164.100.144.207 164.100.144.208 164.100.144.209 164.100.144.210 164.100.144.211 164.100.144.212 164.100.144.213 164.100.144.214 164.100.144.215 164.100.144.216 164.100.144.217 164.100.144.218 164.100.144.219 164.100.144.220 164.100.144.221 164.100.144.222 164.100.144.223 164.100.144.224 164.100.144.225 164.100.144.226 164.100.144.227 164.100.144.228 164.100.144.229 164.100.144.230 164.100.144.231 164.100.144.232 164.100.144.233 164.100.144.234 164.100.144.235 164.100.144.236 164.100.144.237 164.100.144.238 164.100.144.239 164.100.144.240 164.100.144.241 164.100.144.242 164.100.144.243 164.100.144.244 164.100.144.245 164.100.144.246 164.100.144.247 164.100.144.248 164.100.144.249 164.100.144.250 164.100.144.251 164.100.144.252 164.100.144.253 164.100.144.254 164.100.144.255 + 3.8K more (range too large to list inline)

BGP Routing

Live BGP anomalies →

This block is announced in BGP, observed across our RIPE RIS collectors.

Announced prefix

164.100.144.0/20

Origin AS

AS4758

Announcement samples

56,247

Last seen

2026-07-24 13:54:17

RIR Ownership History

Atom feed ⇲

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

Date	Event	From	To	RIR
2026-05-10	RIR Transfer	arin	apnic	apnic

Frequently Asked Questions

What is 164.100.144.0/20?

164.100.144.0/20 is a CIDR network block containing 4,096 IPv4 addresses (from 164.100.144.0 to 164.100.159.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 164.100.144.0/20 network?

The 164.100.144.0/20 range is allocated to an unknown organization from India.