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CIDR Range

9.139.129.0/24

256 IPs /24 Brightspeed AS19901 United States ARIN
Addresses
256
256
IP Range
9.139.129.0
→ 9.139.129.255
Sub-ranges
9+
within this block
PTR Density
100.0%
256 of 256 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.

71/100
Moderate
How this score is built

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

Ranges inside 9.139.129.0/24

CIDRIPsOrganizationASNCountry
9.139.129.0/25 128 Brightspeed AS19901 US
9.139.129.192/26 64 Brightspeed AS19901 US
9.139.129.160/27 32 Brightspeed AS19901 US
9.139.129.128/28 16 Brightspeed AS19901 US
9.139.129.144/29 8 Brightspeed AS19901 US
9.139.129.152/30 4 Brightspeed AS19901 US
9.139.129.156/31 2 Brightspeed AS19901 US
9.139.129.158/32 1 Brightspeed AS19901 US
9.139.129.159/32 1 Brightspeed AS19901 US

All 256 IP addresses in 9.139.129.0/24

9.139.129.0 9.139.129.1 9.139.129.2 9.139.129.3 9.139.129.4 9.139.129.5 9.139.129.6 9.139.129.7 9.139.129.8 9.139.129.9 9.139.129.10 9.139.129.11 9.139.129.12 9.139.129.13 9.139.129.14 9.139.129.15 9.139.129.16 9.139.129.17 9.139.129.18 9.139.129.19 9.139.129.20 9.139.129.21 9.139.129.22 9.139.129.23 9.139.129.24 9.139.129.25 9.139.129.26 9.139.129.27 9.139.129.28 9.139.129.29 9.139.129.30 9.139.129.31 9.139.129.32 9.139.129.33 9.139.129.34 9.139.129.35 9.139.129.36 9.139.129.37 9.139.129.38 9.139.129.39 9.139.129.40 9.139.129.41 9.139.129.42 9.139.129.43 9.139.129.44 9.139.129.45 9.139.129.46 9.139.129.47 9.139.129.48 9.139.129.49 9.139.129.50 9.139.129.51 9.139.129.52 9.139.129.53 9.139.129.54 9.139.129.55 9.139.129.56 9.139.129.57 9.139.129.58 9.139.129.59 9.139.129.60 9.139.129.61 9.139.129.62 9.139.129.63 9.139.129.64 9.139.129.65 9.139.129.66 9.139.129.67 9.139.129.68 9.139.129.69 9.139.129.70 9.139.129.71 9.139.129.72 9.139.129.73 9.139.129.74 9.139.129.75 9.139.129.76 9.139.129.77 9.139.129.78 9.139.129.79 9.139.129.80 9.139.129.81 9.139.129.82 9.139.129.83 9.139.129.84 9.139.129.85 9.139.129.86 9.139.129.87 9.139.129.88 9.139.129.89 9.139.129.90 9.139.129.91 9.139.129.92 9.139.129.93 9.139.129.94 9.139.129.95 9.139.129.96 9.139.129.97 9.139.129.98 9.139.129.99 9.139.129.100 9.139.129.101 9.139.129.102 9.139.129.103 9.139.129.104 9.139.129.105 9.139.129.106 9.139.129.107 9.139.129.108 9.139.129.109 9.139.129.110 9.139.129.111 9.139.129.112 9.139.129.113 9.139.129.114 9.139.129.115 9.139.129.116 9.139.129.117 9.139.129.118 9.139.129.119 9.139.129.120 9.139.129.121 9.139.129.122 9.139.129.123 9.139.129.124 9.139.129.125 9.139.129.126 9.139.129.127 9.139.129.128 9.139.129.129 9.139.129.130 9.139.129.131 9.139.129.132 9.139.129.133 9.139.129.134 9.139.129.135 9.139.129.136 9.139.129.137 9.139.129.138 9.139.129.139 9.139.129.140 9.139.129.141 9.139.129.142 9.139.129.143 9.139.129.144 9.139.129.145 9.139.129.146 9.139.129.147 9.139.129.148 9.139.129.149 9.139.129.150 9.139.129.151 9.139.129.152 9.139.129.153 9.139.129.154 9.139.129.155 9.139.129.156 9.139.129.157 9.139.129.158 9.139.129.159 9.139.129.160 9.139.129.161 9.139.129.162 9.139.129.163 9.139.129.164 9.139.129.165 9.139.129.166 9.139.129.167 9.139.129.168 9.139.129.169 9.139.129.170 9.139.129.171 9.139.129.172 9.139.129.173 9.139.129.174 9.139.129.175 9.139.129.176 9.139.129.177 9.139.129.178 9.139.129.179 9.139.129.180 9.139.129.181 9.139.129.182 9.139.129.183 9.139.129.184 9.139.129.185 9.139.129.186 9.139.129.187 9.139.129.188 9.139.129.189 9.139.129.190 9.139.129.191 9.139.129.192 9.139.129.193 9.139.129.194 9.139.129.195 9.139.129.196 9.139.129.197 9.139.129.198 9.139.129.199 9.139.129.200 9.139.129.201 9.139.129.202 9.139.129.203 9.139.129.204 9.139.129.205 9.139.129.206 9.139.129.207 9.139.129.208 9.139.129.209 9.139.129.210 9.139.129.211 9.139.129.212 9.139.129.213 9.139.129.214 9.139.129.215 9.139.129.216 9.139.129.217 9.139.129.218 9.139.129.219 9.139.129.220 9.139.129.221 9.139.129.222 9.139.129.223 9.139.129.224 9.139.129.225 9.139.129.226 9.139.129.227 9.139.129.228 9.139.129.229 9.139.129.230 9.139.129.231 9.139.129.232 9.139.129.233 9.139.129.234 9.139.129.235 9.139.129.236 9.139.129.237 9.139.129.238 9.139.129.239 9.139.129.240 9.139.129.241 9.139.129.242 9.139.129.243 9.139.129.244 9.139.129.245 9.139.129.246 9.139.129.247 9.139.129.248 9.139.129.249 9.139.129.250 9.139.129.251 9.139.129.252 9.139.129.253 9.139.129.254 9.139.129.255

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 9.139.128.0/18.

Announced prefix
9.139.128.0/18
Origin AS
AS19901
Announcement samples
5,865
Last seen
2026-07-27 06:44:50

Frequently Asked Questions

What is 9.139.129.0/24?

9.139.129.0/24 is a CIDR network block containing 256 IPv4 addresses (from 9.139.129.0 to 9.139.129.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 9.139.129.0/24 network?

The 9.139.129.0/24 range is allocated to Brightspeed and announced via AS19901 from United States.

How many IP addresses are in 9.139.129.0/24?

9.139.129.0/24 contains exactly 256 usable IPv4 addresses. A /24 prefix length means 256 addresses are covered by this single routing entry.

Last updated: 2026-07-27 06:55:32 UTC
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