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CIDR Range

147.31.64.0/18

16.4K IPs /18 Widener University AS15243 United States ARIN
Addresses
16,384
16.4K
IP Range
147.31.64.0
→ 147.31.127.255
Sub-ranges
4+
within this block
PTR Density
0.2%
26 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.

82/100
Trusted
How this score is built

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

Ranges inside 147.31.64.0/18

CIDRIPsOrganizationASNCountry
147.31.64.0/19 8.2K Widener University AS15243 US
147.31.96.0/19 8.2K Widener University AS15243 US
147.31.96.0/20 4.1K Widener University AS15243 US
147.31.112.0/20 4.1K Widener University AS15243 US

Geolocation

First 256 of 16,384 IP addresses in 147.31.64.0/18

147.31.64.0 147.31.64.1 147.31.64.2 147.31.64.3 147.31.64.4 147.31.64.5 147.31.64.6 147.31.64.7 147.31.64.8 147.31.64.9 147.31.64.10 147.31.64.11 147.31.64.12 147.31.64.13 147.31.64.14 147.31.64.15 147.31.64.16 147.31.64.17 147.31.64.18 147.31.64.19 147.31.64.20 147.31.64.21 147.31.64.22 147.31.64.23 147.31.64.24 147.31.64.25 147.31.64.26 147.31.64.27 147.31.64.28 147.31.64.29 147.31.64.30 147.31.64.31 147.31.64.32 147.31.64.33 147.31.64.34 147.31.64.35 147.31.64.36 147.31.64.37 147.31.64.38 147.31.64.39 147.31.64.40 147.31.64.41 147.31.64.42 147.31.64.43 147.31.64.44 147.31.64.45 147.31.64.46 147.31.64.47 147.31.64.48 147.31.64.49 147.31.64.50 147.31.64.51 147.31.64.52 147.31.64.53 147.31.64.54 147.31.64.55 147.31.64.56 147.31.64.57 147.31.64.58 147.31.64.59 147.31.64.60 147.31.64.61 147.31.64.62 147.31.64.63 147.31.64.64 147.31.64.65 147.31.64.66 147.31.64.67 147.31.64.68 147.31.64.69 147.31.64.70 147.31.64.71 147.31.64.72 147.31.64.73 147.31.64.74 147.31.64.75 147.31.64.76 147.31.64.77 147.31.64.78 147.31.64.79 147.31.64.80 147.31.64.81 147.31.64.82 147.31.64.83 147.31.64.84 147.31.64.85 147.31.64.86 147.31.64.87 147.31.64.88 147.31.64.89 147.31.64.90 147.31.64.91 147.31.64.92 147.31.64.93 147.31.64.94 147.31.64.95 147.31.64.96 147.31.64.97 147.31.64.98 147.31.64.99 147.31.64.100 147.31.64.101 147.31.64.102 147.31.64.103 147.31.64.104 147.31.64.105 147.31.64.106 147.31.64.107 147.31.64.108 147.31.64.109 147.31.64.110 147.31.64.111 147.31.64.112 147.31.64.113 147.31.64.114 147.31.64.115 147.31.64.116 147.31.64.117 147.31.64.118 147.31.64.119 147.31.64.120 147.31.64.121 147.31.64.122 147.31.64.123 147.31.64.124 147.31.64.125 147.31.64.126 147.31.64.127 147.31.64.128 147.31.64.129 147.31.64.130 147.31.64.131 147.31.64.132 147.31.64.133 147.31.64.134 147.31.64.135 147.31.64.136 147.31.64.137 147.31.64.138 147.31.64.139 147.31.64.140 147.31.64.141 147.31.64.142 147.31.64.143 147.31.64.144 147.31.64.145 147.31.64.146 147.31.64.147 147.31.64.148 147.31.64.149 147.31.64.150 147.31.64.151 147.31.64.152 147.31.64.153 147.31.64.154 147.31.64.155 147.31.64.156 147.31.64.157 147.31.64.158 147.31.64.159 147.31.64.160 147.31.64.161 147.31.64.162 147.31.64.163 147.31.64.164 147.31.64.165 147.31.64.166 147.31.64.167 147.31.64.168 147.31.64.169 147.31.64.170 147.31.64.171 147.31.64.172 147.31.64.173 147.31.64.174 147.31.64.175 147.31.64.176 147.31.64.177 147.31.64.178 147.31.64.179 147.31.64.180 147.31.64.181 147.31.64.182 147.31.64.183 147.31.64.184 147.31.64.185 147.31.64.186 147.31.64.187 147.31.64.188 147.31.64.189 147.31.64.190 147.31.64.191 147.31.64.192 147.31.64.193 147.31.64.194 147.31.64.195 147.31.64.196 147.31.64.197 147.31.64.198 147.31.64.199 147.31.64.200 147.31.64.201 147.31.64.202 147.31.64.203 147.31.64.204 147.31.64.205 147.31.64.206 147.31.64.207 147.31.64.208 147.31.64.209 147.31.64.210 147.31.64.211 147.31.64.212 147.31.64.213 147.31.64.214 147.31.64.215 147.31.64.216 147.31.64.217 147.31.64.218 147.31.64.219 147.31.64.220 147.31.64.221 147.31.64.222 147.31.64.223 147.31.64.224 147.31.64.225 147.31.64.226 147.31.64.227 147.31.64.228 147.31.64.229 147.31.64.230 147.31.64.231 147.31.64.232 147.31.64.233 147.31.64.234 147.31.64.235 147.31.64.236 147.31.64.237 147.31.64.238 147.31.64.239 147.31.64.240 147.31.64.241 147.31.64.242 147.31.64.243 147.31.64.244 147.31.64.245 147.31.64.246 147.31.64.247 147.31.64.248 147.31.64.249 147.31.64.250 147.31.64.251 147.31.64.252 147.31.64.253 147.31.64.254 147.31.64.255 + 16.1K 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
147.31.64.0/18
Origin AS
AS15243
Announcement samples
16,542
Last seen
2026-07-24 22:06:54

Frequently Asked Questions

What is 147.31.64.0/18?

147.31.64.0/18 is a CIDR network block containing 16,384 IPv4 addresses (from 147.31.64.0 to 147.31.127.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 147.31.64.0/18 network?

The 147.31.64.0/18 range is allocated to Widener University and announced via AS15243 from United States.

Last updated: 2026-07-24 22:10:32 UTC
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