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CIDR Range

142.151.0.0/16

65.5K IPs /16 University of Toronto AS239 Canada ARIN
Addresses
65,536
65.5K
IP Range
142.151.0.0
→ 142.151.255.255
Sub-ranges
9+
within this block
PTR Density
14.5%
9.5K of 65.5K 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 142.151.0.0/16

CIDRIPsOrganizationASNCountry
142.151.0.0/17 32.8K University of Toronto AS239 CA
142.151.192.0/18 16.4K University of Toronto AS239 CA
142.151.160.0/19 8.2K University of Toronto AS239 CA
142.151.128.0/20 4.1K University of Toronto AS239 CA
142.151.144.0/20 4.1K University of Toronto AS239 CA
142.151.160.0/20 4.1K University of Toronto AS239 CA
142.151.176.0/20 4.1K University of Toronto AS239 CA
142.151.144.0/21 2.0K University of Toronto AS239 CA
142.151.152.0/21 2.0K University of Toronto AS239 CA

Geolocation

First 256 of 65,536 IP addresses in 142.151.0.0/16

142.151.0.0 142.151.0.1 142.151.0.2 142.151.0.3 142.151.0.4 142.151.0.5 142.151.0.6 142.151.0.7 142.151.0.8 142.151.0.9 142.151.0.10 142.151.0.11 142.151.0.12 142.151.0.13 142.151.0.14 142.151.0.15 142.151.0.16 142.151.0.17 142.151.0.18 142.151.0.19 142.151.0.20 142.151.0.21 142.151.0.22 142.151.0.23 142.151.0.24 142.151.0.25 142.151.0.26 142.151.0.27 142.151.0.28 142.151.0.29 142.151.0.30 142.151.0.31 142.151.0.32 142.151.0.33 142.151.0.34 142.151.0.35 142.151.0.36 142.151.0.37 142.151.0.38 142.151.0.39 142.151.0.40 142.151.0.41 142.151.0.42 142.151.0.43 142.151.0.44 142.151.0.45 142.151.0.46 142.151.0.47 142.151.0.48 142.151.0.49 142.151.0.50 142.151.0.51 142.151.0.52 142.151.0.53 142.151.0.54 142.151.0.55 142.151.0.56 142.151.0.57 142.151.0.58 142.151.0.59 142.151.0.60 142.151.0.61 142.151.0.62 142.151.0.63 142.151.0.64 142.151.0.65 142.151.0.66 142.151.0.67 142.151.0.68 142.151.0.69 142.151.0.70 142.151.0.71 142.151.0.72 142.151.0.73 142.151.0.74 142.151.0.75 142.151.0.76 142.151.0.77 142.151.0.78 142.151.0.79 142.151.0.80 142.151.0.81 142.151.0.82 142.151.0.83 142.151.0.84 142.151.0.85 142.151.0.86 142.151.0.87 142.151.0.88 142.151.0.89 142.151.0.90 142.151.0.91 142.151.0.92 142.151.0.93 142.151.0.94 142.151.0.95 142.151.0.96 142.151.0.97 142.151.0.98 142.151.0.99 142.151.0.100 142.151.0.101 142.151.0.102 142.151.0.103 142.151.0.104 142.151.0.105 142.151.0.106 142.151.0.107 142.151.0.108 142.151.0.109 142.151.0.110 142.151.0.111 142.151.0.112 142.151.0.113 142.151.0.114 142.151.0.115 142.151.0.116 142.151.0.117 142.151.0.118 142.151.0.119 142.151.0.120 142.151.0.121 142.151.0.122 142.151.0.123 142.151.0.124 142.151.0.125 142.151.0.126 142.151.0.127 142.151.0.128 142.151.0.129 142.151.0.130 142.151.0.131 142.151.0.132 142.151.0.133 142.151.0.134 142.151.0.135 142.151.0.136 142.151.0.137 142.151.0.138 142.151.0.139 142.151.0.140 142.151.0.141 142.151.0.142 142.151.0.143 142.151.0.144 142.151.0.145 142.151.0.146 142.151.0.147 142.151.0.148 142.151.0.149 142.151.0.150 142.151.0.151 142.151.0.152 142.151.0.153 142.151.0.154 142.151.0.155 142.151.0.156 142.151.0.157 142.151.0.158 142.151.0.159 142.151.0.160 142.151.0.161 142.151.0.162 142.151.0.163 142.151.0.164 142.151.0.165 142.151.0.166 142.151.0.167 142.151.0.168 142.151.0.169 142.151.0.170 142.151.0.171 142.151.0.172 142.151.0.173 142.151.0.174 142.151.0.175 142.151.0.176 142.151.0.177 142.151.0.178 142.151.0.179 142.151.0.180 142.151.0.181 142.151.0.182 142.151.0.183 142.151.0.184 142.151.0.185 142.151.0.186 142.151.0.187 142.151.0.188 142.151.0.189 142.151.0.190 142.151.0.191 142.151.0.192 142.151.0.193 142.151.0.194 142.151.0.195 142.151.0.196 142.151.0.197 142.151.0.198 142.151.0.199 142.151.0.200 142.151.0.201 142.151.0.202 142.151.0.203 142.151.0.204 142.151.0.205 142.151.0.206 142.151.0.207 142.151.0.208 142.151.0.209 142.151.0.210 142.151.0.211 142.151.0.212 142.151.0.213 142.151.0.214 142.151.0.215 142.151.0.216 142.151.0.217 142.151.0.218 142.151.0.219 142.151.0.220 142.151.0.221 142.151.0.222 142.151.0.223 142.151.0.224 142.151.0.225 142.151.0.226 142.151.0.227 142.151.0.228 142.151.0.229 142.151.0.230 142.151.0.231 142.151.0.232 142.151.0.233 142.151.0.234 142.151.0.235 142.151.0.236 142.151.0.237 142.151.0.238 142.151.0.239 142.151.0.240 142.151.0.241 142.151.0.242 142.151.0.243 142.151.0.244 142.151.0.245 142.151.0.246 142.151.0.247 142.151.0.248 142.151.0.249 142.151.0.250 142.151.0.251 142.151.0.252 142.151.0.253 142.151.0.254 142.151.0.255 + 65.3K 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
142.151.0.0/16
Origin AS
AS239
Announcement samples
5,522
Last seen
2026-07-23 16:51:24

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 — CA

Frequently Asked Questions

What is 142.151.0.0/16?

142.151.0.0/16 is a CIDR network block containing 65,536 IPv4 addresses (from 142.151.0.0 to 142.151.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 142.151.0.0/16 network?

The 142.151.0.0/16 range is allocated to University of Toronto and announced via AS239 from Canada.

Last updated: 2026-07-23 17:25:31 UTC
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