171.251.238.0/24 subnet

IPv4 /24 block

171.251.238.0/24 is a block of 256 IPv4 addresses announced by AS7552 (IRT-VNNIC-AP), located mainly in Vietnam. IPDebrief has analysed 12 addresses in this block; 1 currently carries a higher risk score. Overall the neighbourhood is assessed as mostly clean.

Updated 6 November 2026

Analysed: 12
Higher risk: 1
Hosting / datacenter: 0
VPN, proxy or Tor: 0
With reverse DNS: 12

Analysed addresses in 171.251.238.0/24

1 higher risk10 moderate1 low

171.251.238.8dynamic-ip-adsl.viettel.vn · risk 40
171.251.238.96dynamic-ip-adsl.viettel.vn · risk 55
171.251.238.126dynamic-ip-adsl.viettel.vn · risk 40
171.251.238.136dynamic-adsl.viettel.vn · risk 55
171.251.238.177dynamic-ip-adsl.viettel.vn · risk 55
171.251.238.181dynamic-ip-adsl.viettel.vn · risk 40
171.251.238.185dynamic-adsl.viettel.vn · risk 40
171.251.238.186dynamic-ip-adsl.viettel.vn · risk 30
171.251.238.190dynamic-ip-adsl.viettel.vn · risk 55
171.251.238.247dynamic-ip-adsl.viettel.vn · risk 55
171.251.238.251dynamic-ip-adsl.viettel.vn · risk 80
171.251.238.255dynamic-ip-adsl.viettel.vn · risk 65

Related networks

About this block

A /24 is the smallest IPv4 block normally routed on the internet, so the 256 addresses inside it usually share one operator and purpose. Looking at a whole block shows whether a single suspicious address is an outlier or part of a pattern: a block where many addresses carry abuse reports, hosting infrastructure or anonymising services deserves more caution than one with a single flagged address.

Only addresses IPDebrief has analysed are listed. Each links to its full profile with ownership, routing, reverse DNS and risk evidence.