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CIDR Range

1.158.0.0/16

65.5K IPs /16 Telstra Limited AS1221 Australia APNIC
Addresses
65,536
65.5K
IP Range
1.158.0.0
→ 1.158.255.255
Sub-ranges
45+
within this block
PTR Density
94.4%
61.9K 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 1.158.0.0/16

CIDRIPsOrganizationASNCountry
1.158.0.0/17 32.8K Telstra Limited AS1221 AU
1.158.0.0/19 8.2K Telstra Limited AS1221 AU
1.158.192.0/19 8.2K Telstra Limited AS1221 AU
1.158.96.0/19 8.2K Telstra Limited AS1221 AU
1.158.128.0/19 8.2K Telstra Limited AS1221 AU
1.158.0.0/20 4.1K Telstra Limited AS1221 AU
1.158.144.0/20 4.1K Telstra Limited AS1221 AU
1.158.176.0/20 4.1K Telstra Limited AS1221 AU
1.158.240.0/20 4.1K Telstra Limited AS1221 AU
1.158.208.0/20 4.1K Telstra Limited AS1221 AU
1.158.128.0/20 4.1K Telstra Limited AS1221 AU
1.158.112.0/20 4.1K Telstra Limited AS1221 AU
1.158.16.0/20 4.1K Telstra Limited AS1221 AU
1.158.32.0/20 4.1K Telstra Limited AS1221 AU
1.158.48.0/20 4.1K Telstra Limited AS1221 AU
1.158.192.0/20 4.1K Telstra Limited AS1221 AU
1.158.64.0/20 4.1K Telstra Limited AS1221 AU
1.158.80.0/20 4.1K Telstra Limited AS1221 AU
1.158.96.0/20 4.1K Telstra Limited AS1221 AU
1.158.160.0/21 2.0K Telstra Limited AS1221 AU
1.158.232.0/21 2.0K Telstra Limited AS1221 AU
1.158.168.0/22 1.0K Telstra Limited AS1221 AU
1.158.224.0/22 1.0K Telstra Limited AS1221 AU
1.158.172.0/23 512 Telstra Limited AS1221 AU
1.158.228.0/23 512 Telstra Limited AS1221 AU
1.158.230.0/24 256 Telstra Limited AS1221 AU
1.158.174.0/24 256 Telstra Limited AS1221 AU
1.158.175.0/25 128 Telstra Limited AS1221 AU
1.158.231.128/25 128 Telstra Limited AS1221 AU
1.158.175.192/26 64 Telstra Limited AS1221 AU
1.158.231.0/26 64 Telstra Limited AS1221 AU
1.158.231.96/27 32 Telstra Limited AS1221 AU
1.158.175.128/27 32 Telstra Limited AS1221 AU
1.158.175.176/28 16 Telstra Limited AS1221 AU
1.158.231.80/28 16 Telstra Limited AS1221 AU
1.158.231.72/29 8 Telstra Limited AS1221 AU
1.158.175.160/29 8 Telstra Limited AS1221 AU
1.158.175.168/30 4 Telstra Limited AS1221 AU
1.158.231.64/30 4 Telstra Limited AS1221 AU
1.158.231.70/31 2 Telstra Limited AS1221 AU
1.158.175.174/31 2 Telstra Limited AS1221 AU
1.158.231.68/32 1 Telstra Limited AS1221 AU
1.158.231.69/32 1 Telstra Limited AS1221 AU
1.158.175.173/32 1 Telstra Limited AS1221 AU
1.158.175.172/32 1 Telstra Limited AS1221 AU

First 256 of 65,536 IP addresses in 1.158.0.0/16

1.158.0.0 1.158.0.1 1.158.0.2 1.158.0.3 1.158.0.4 1.158.0.5 1.158.0.6 1.158.0.7 1.158.0.8 1.158.0.9 1.158.0.10 1.158.0.11 1.158.0.12 1.158.0.13 1.158.0.14 1.158.0.15 1.158.0.16 1.158.0.17 1.158.0.18 1.158.0.19 1.158.0.20 1.158.0.21 1.158.0.22 1.158.0.23 1.158.0.24 1.158.0.25 1.158.0.26 1.158.0.27 1.158.0.28 1.158.0.29 1.158.0.30 1.158.0.31 1.158.0.32 1.158.0.33 1.158.0.34 1.158.0.35 1.158.0.36 1.158.0.37 1.158.0.38 1.158.0.39 1.158.0.40 1.158.0.41 1.158.0.42 1.158.0.43 1.158.0.44 1.158.0.45 1.158.0.46 1.158.0.47 1.158.0.48 1.158.0.49 1.158.0.50 1.158.0.51 1.158.0.52 1.158.0.53 1.158.0.54 1.158.0.55 1.158.0.56 1.158.0.57 1.158.0.58 1.158.0.59 1.158.0.60 1.158.0.61 1.158.0.62 1.158.0.63 1.158.0.64 1.158.0.65 1.158.0.66 1.158.0.67 1.158.0.68 1.158.0.69 1.158.0.70 1.158.0.71 1.158.0.72 1.158.0.73 1.158.0.74 1.158.0.75 1.158.0.76 1.158.0.77 1.158.0.78 1.158.0.79 1.158.0.80 1.158.0.81 1.158.0.82 1.158.0.83 1.158.0.84 1.158.0.85 1.158.0.86 1.158.0.87 1.158.0.88 1.158.0.89 1.158.0.90 1.158.0.91 1.158.0.92 1.158.0.93 1.158.0.94 1.158.0.95 1.158.0.96 1.158.0.97 1.158.0.98 1.158.0.99 1.158.0.100 1.158.0.101 1.158.0.102 1.158.0.103 1.158.0.104 1.158.0.105 1.158.0.106 1.158.0.107 1.158.0.108 1.158.0.109 1.158.0.110 1.158.0.111 1.158.0.112 1.158.0.113 1.158.0.114 1.158.0.115 1.158.0.116 1.158.0.117 1.158.0.118 1.158.0.119 1.158.0.120 1.158.0.121 1.158.0.122 1.158.0.123 1.158.0.124 1.158.0.125 1.158.0.126 1.158.0.127 1.158.0.128 1.158.0.129 1.158.0.130 1.158.0.131 1.158.0.132 1.158.0.133 1.158.0.134 1.158.0.135 1.158.0.136 1.158.0.137 1.158.0.138 1.158.0.139 1.158.0.140 1.158.0.141 1.158.0.142 1.158.0.143 1.158.0.144 1.158.0.145 1.158.0.146 1.158.0.147 1.158.0.148 1.158.0.149 1.158.0.150 1.158.0.151 1.158.0.152 1.158.0.153 1.158.0.154 1.158.0.155 1.158.0.156 1.158.0.157 1.158.0.158 1.158.0.159 1.158.0.160 1.158.0.161 1.158.0.162 1.158.0.163 1.158.0.164 1.158.0.165 1.158.0.166 1.158.0.167 1.158.0.168 1.158.0.169 1.158.0.170 1.158.0.171 1.158.0.172 1.158.0.173 1.158.0.174 1.158.0.175 1.158.0.176 1.158.0.177 1.158.0.178 1.158.0.179 1.158.0.180 1.158.0.181 1.158.0.182 1.158.0.183 1.158.0.184 1.158.0.185 1.158.0.186 1.158.0.187 1.158.0.188 1.158.0.189 1.158.0.190 1.158.0.191 1.158.0.192 1.158.0.193 1.158.0.194 1.158.0.195 1.158.0.196 1.158.0.197 1.158.0.198 1.158.0.199 1.158.0.200 1.158.0.201 1.158.0.202 1.158.0.203 1.158.0.204 1.158.0.205 1.158.0.206 1.158.0.207 1.158.0.208 1.158.0.209 1.158.0.210 1.158.0.211 1.158.0.212 1.158.0.213 1.158.0.214 1.158.0.215 1.158.0.216 1.158.0.217 1.158.0.218 1.158.0.219 1.158.0.220 1.158.0.221 1.158.0.222 1.158.0.223 1.158.0.224 1.158.0.225 1.158.0.226 1.158.0.227 1.158.0.228 1.158.0.229 1.158.0.230 1.158.0.231 1.158.0.232 1.158.0.233 1.158.0.234 1.158.0.235 1.158.0.236 1.158.0.237 1.158.0.238 1.158.0.239 1.158.0.240 1.158.0.241 1.158.0.242 1.158.0.243 1.158.0.244 1.158.0.245 1.158.0.246 1.158.0.247 1.158.0.248 1.158.0.249 1.158.0.250 1.158.0.251 1.158.0.252 1.158.0.253 1.158.0.254 1.158.0.255 + 65.3K more (range too large to list inline)

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 1.128.0.0/11.

Announced prefix
1.128.0.0/11
Origin AS
AS1221
Announcement samples
8,976
Last seen
2026-07-19 15:20:32

Frequently Asked Questions

What is 1.158.0.0/16?

1.158.0.0/16 is a CIDR network block containing 65,536 IPv4 addresses (from 1.158.0.0 to 1.158.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 1.158.0.0/16 network?

The 1.158.0.0/16 range is allocated to Telstra Limited and announced via AS1221 from Australia.

Last updated: 2026-07-19 15:40:31 UTC
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