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CIDR Range

140.107.64.0/18

16.4K IPs /18 The Fred Hutchinson Cancer Research Center AS14954 United States ARIN
Addresses
16,384
16.4K
IP Range
140.107.64.0
→ 140.107.127.255
Sub-ranges
3+
within this block
PTR Density
1.6%
256 of 16.4K 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 140.107.64.0/18

CIDRIPsOrganizationASNCountry
140.107.64.0/19 8.2K The Fred Hutchinson Cancer Research Center AS14954 US
140.107.96.0/20 4.1K The Fred Hutchinson Cancer Research Center AS14954 US
140.107.112.0/20 4.1K The Fred Hutchinson Cancer Research Center AS14954 US

Geolocation

First 256 of 16,384 IP addresses in 140.107.64.0/18

140.107.64.0 140.107.64.1 140.107.64.2 140.107.64.3 140.107.64.4 140.107.64.5 140.107.64.6 140.107.64.7 140.107.64.8 140.107.64.9 140.107.64.10 140.107.64.11 140.107.64.12 140.107.64.13 140.107.64.14 140.107.64.15 140.107.64.16 140.107.64.17 140.107.64.18 140.107.64.19 140.107.64.20 140.107.64.21 140.107.64.22 140.107.64.23 140.107.64.24 140.107.64.25 140.107.64.26 140.107.64.27 140.107.64.28 140.107.64.29 140.107.64.30 140.107.64.31 140.107.64.32 140.107.64.33 140.107.64.34 140.107.64.35 140.107.64.36 140.107.64.37 140.107.64.38 140.107.64.39 140.107.64.40 140.107.64.41 140.107.64.42 140.107.64.43 140.107.64.44 140.107.64.45 140.107.64.46 140.107.64.47 140.107.64.48 140.107.64.49 140.107.64.50 140.107.64.51 140.107.64.52 140.107.64.53 140.107.64.54 140.107.64.55 140.107.64.56 140.107.64.57 140.107.64.58 140.107.64.59 140.107.64.60 140.107.64.61 140.107.64.62 140.107.64.63 140.107.64.64 140.107.64.65 140.107.64.66 140.107.64.67 140.107.64.68 140.107.64.69 140.107.64.70 140.107.64.71 140.107.64.72 140.107.64.73 140.107.64.74 140.107.64.75 140.107.64.76 140.107.64.77 140.107.64.78 140.107.64.79 140.107.64.80 140.107.64.81 140.107.64.82 140.107.64.83 140.107.64.84 140.107.64.85 140.107.64.86 140.107.64.87 140.107.64.88 140.107.64.89 140.107.64.90 140.107.64.91 140.107.64.92 140.107.64.93 140.107.64.94 140.107.64.95 140.107.64.96 140.107.64.97 140.107.64.98 140.107.64.99 140.107.64.100 140.107.64.101 140.107.64.102 140.107.64.103 140.107.64.104 140.107.64.105 140.107.64.106 140.107.64.107 140.107.64.108 140.107.64.109 140.107.64.110 140.107.64.111 140.107.64.112 140.107.64.113 140.107.64.114 140.107.64.115 140.107.64.116 140.107.64.117 140.107.64.118 140.107.64.119 140.107.64.120 140.107.64.121 140.107.64.122 140.107.64.123 140.107.64.124 140.107.64.125 140.107.64.126 140.107.64.127 140.107.64.128 140.107.64.129 140.107.64.130 140.107.64.131 140.107.64.132 140.107.64.133 140.107.64.134 140.107.64.135 140.107.64.136 140.107.64.137 140.107.64.138 140.107.64.139 140.107.64.140 140.107.64.141 140.107.64.142 140.107.64.143 140.107.64.144 140.107.64.145 140.107.64.146 140.107.64.147 140.107.64.148 140.107.64.149 140.107.64.150 140.107.64.151 140.107.64.152 140.107.64.153 140.107.64.154 140.107.64.155 140.107.64.156 140.107.64.157 140.107.64.158 140.107.64.159 140.107.64.160 140.107.64.161 140.107.64.162 140.107.64.163 140.107.64.164 140.107.64.165 140.107.64.166 140.107.64.167 140.107.64.168 140.107.64.169 140.107.64.170 140.107.64.171 140.107.64.172 140.107.64.173 140.107.64.174 140.107.64.175 140.107.64.176 140.107.64.177 140.107.64.178 140.107.64.179 140.107.64.180 140.107.64.181 140.107.64.182 140.107.64.183 140.107.64.184 140.107.64.185 140.107.64.186 140.107.64.187 140.107.64.188 140.107.64.189 140.107.64.190 140.107.64.191 140.107.64.192 140.107.64.193 140.107.64.194 140.107.64.195 140.107.64.196 140.107.64.197 140.107.64.198 140.107.64.199 140.107.64.200 140.107.64.201 140.107.64.202 140.107.64.203 140.107.64.204 140.107.64.205 140.107.64.206 140.107.64.207 140.107.64.208 140.107.64.209 140.107.64.210 140.107.64.211 140.107.64.212 140.107.64.213 140.107.64.214 140.107.64.215 140.107.64.216 140.107.64.217 140.107.64.218 140.107.64.219 140.107.64.220 140.107.64.221 140.107.64.222 140.107.64.223 140.107.64.224 140.107.64.225 140.107.64.226 140.107.64.227 140.107.64.228 140.107.64.229 140.107.64.230 140.107.64.231 140.107.64.232 140.107.64.233 140.107.64.234 140.107.64.235 140.107.64.236 140.107.64.237 140.107.64.238 140.107.64.239 140.107.64.240 140.107.64.241 140.107.64.242 140.107.64.243 140.107.64.244 140.107.64.245 140.107.64.246 140.107.64.247 140.107.64.248 140.107.64.249 140.107.64.250 140.107.64.251 140.107.64.252 140.107.64.253 140.107.64.254 140.107.64.255 + 16.1K more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 140.107.0.0/16.

Announced prefix
140.107.0.0/16
Origin AS
AS14954
Announcement samples
3,698
Last seen
2026-07-18 12:00:11

Frequently Asked Questions

What is 140.107.64.0/18?

140.107.64.0/18 is a CIDR network block containing 16,384 IPv4 addresses (from 140.107.64.0 to 140.107.127.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 140.107.64.0/18 network?

The 140.107.64.0/18 range is allocated to The Fred Hutchinson Cancer Research Center and announced via AS14954 from United States.

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