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CIDR Range

74.63.144.0/21

2.0K IPs /21 Flexential Colorado Corp. AS13649 United States ARIN
Addresses
2,048
2.0K
IP Range
74.63.144.0
→ 74.63.151.255
Sub-ranges
4+
within this block
PTR Density
6.2%
127 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.

80/100
Trusted
How this score is built

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

Ranges inside 74.63.144.0/21

CIDRIPsOrganizationASNCountry
74.63.144.0/22 1.0K Flexential Colorado Corp. AS13649 US
74.63.148.0/23 512 Flexential Colorado Corp. AS13649 US
74.63.150.0/24 256 Open Technology Solutions, LLC AS31902 US
74.63.151.0/24 256 Flexential Colorado Corp. AS13649 US

Geolocation

First 256 of 2,048 IP addresses in 74.63.144.0/21

74.63.144.0 74.63.144.1 74.63.144.2 74.63.144.3 74.63.144.4 74.63.144.5 74.63.144.6 74.63.144.7 74.63.144.8 74.63.144.9 74.63.144.10 74.63.144.11 74.63.144.12 74.63.144.13 74.63.144.14 74.63.144.15 74.63.144.16 74.63.144.17 74.63.144.18 74.63.144.19 74.63.144.20 74.63.144.21 74.63.144.22 74.63.144.23 74.63.144.24 74.63.144.25 74.63.144.26 74.63.144.27 74.63.144.28 74.63.144.29 74.63.144.30 74.63.144.31 74.63.144.32 74.63.144.33 74.63.144.34 74.63.144.35 74.63.144.36 74.63.144.37 74.63.144.38 74.63.144.39 74.63.144.40 74.63.144.41 74.63.144.42 74.63.144.43 74.63.144.44 74.63.144.45 74.63.144.46 74.63.144.47 74.63.144.48 74.63.144.49 74.63.144.50 74.63.144.51 74.63.144.52 74.63.144.53 74.63.144.54 74.63.144.55 74.63.144.56 74.63.144.57 74.63.144.58 74.63.144.59 74.63.144.60 74.63.144.61 74.63.144.62 74.63.144.63 74.63.144.64 74.63.144.65 74.63.144.66 74.63.144.67 74.63.144.68 74.63.144.69 74.63.144.70 74.63.144.71 74.63.144.72 74.63.144.73 74.63.144.74 74.63.144.75 74.63.144.76 74.63.144.77 74.63.144.78 74.63.144.79 74.63.144.80 74.63.144.81 74.63.144.82 74.63.144.83 74.63.144.84 74.63.144.85 74.63.144.86 74.63.144.87 74.63.144.88 74.63.144.89 74.63.144.90 74.63.144.91 74.63.144.92 74.63.144.93 74.63.144.94 74.63.144.95 74.63.144.96 74.63.144.97 74.63.144.98 74.63.144.99 74.63.144.100 74.63.144.101 74.63.144.102 74.63.144.103 74.63.144.104 74.63.144.105 74.63.144.106 74.63.144.107 74.63.144.108 74.63.144.109 74.63.144.110 74.63.144.111 74.63.144.112 74.63.144.113 74.63.144.114 74.63.144.115 74.63.144.116 74.63.144.117 74.63.144.118 74.63.144.119 74.63.144.120 74.63.144.121 74.63.144.122 74.63.144.123 74.63.144.124 74.63.144.125 74.63.144.126 74.63.144.127 74.63.144.128 74.63.144.129 74.63.144.130 74.63.144.131 74.63.144.132 74.63.144.133 74.63.144.134 74.63.144.135 74.63.144.136 74.63.144.137 74.63.144.138 74.63.144.139 74.63.144.140 74.63.144.141 74.63.144.142 74.63.144.143 74.63.144.144 74.63.144.145 74.63.144.146 74.63.144.147 74.63.144.148 74.63.144.149 74.63.144.150 74.63.144.151 74.63.144.152 74.63.144.153 74.63.144.154 74.63.144.155 74.63.144.156 74.63.144.157 74.63.144.158 74.63.144.159 74.63.144.160 74.63.144.161 74.63.144.162 74.63.144.163 74.63.144.164 74.63.144.165 74.63.144.166 74.63.144.167 74.63.144.168 74.63.144.169 74.63.144.170 74.63.144.171 74.63.144.172 74.63.144.173 74.63.144.174 74.63.144.175 74.63.144.176 74.63.144.177 74.63.144.178 74.63.144.179 74.63.144.180 74.63.144.181 74.63.144.182 74.63.144.183 74.63.144.184 74.63.144.185 74.63.144.186 74.63.144.187 74.63.144.188 74.63.144.189 74.63.144.190 74.63.144.191 74.63.144.192 74.63.144.193 74.63.144.194 74.63.144.195 74.63.144.196 74.63.144.197 74.63.144.198 74.63.144.199 74.63.144.200 74.63.144.201 74.63.144.202 74.63.144.203 74.63.144.204 74.63.144.205 74.63.144.206 74.63.144.207 74.63.144.208 74.63.144.209 74.63.144.210 74.63.144.211 74.63.144.212 74.63.144.213 74.63.144.214 74.63.144.215 74.63.144.216 74.63.144.217 74.63.144.218 74.63.144.219 74.63.144.220 74.63.144.221 74.63.144.222 74.63.144.223 74.63.144.224 74.63.144.225 74.63.144.226 74.63.144.227 74.63.144.228 74.63.144.229 74.63.144.230 74.63.144.231 74.63.144.232 74.63.144.233 74.63.144.234 74.63.144.235 74.63.144.236 74.63.144.237 74.63.144.238 74.63.144.239 74.63.144.240 74.63.144.241 74.63.144.242 74.63.144.243 74.63.144.244 74.63.144.245 74.63.144.246 74.63.144.247 74.63.144.248 74.63.144.249 74.63.144.250 74.63.144.251 74.63.144.252 74.63.144.253 74.63.144.254 74.63.144.255 + 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 74.63.128.0/19.

Announced prefix
74.63.128.0/19
Origin AS
AS13649
Announcement samples
10,707
Last seen
2026-07-23 13:29:16

Frequently Asked Questions

What is 74.63.144.0/21?

74.63.144.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 74.63.144.0 to 74.63.151.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 74.63.144.0/21 network?

The 74.63.144.0/21 range is allocated to Flexential Colorado Corp. and announced via AS13649 from United States.

Last updated: 2026-07-23 14:10:31 UTC
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