# 171.231.194.41 — IP Intelligence Summary

171.231.194.41 is an IPv4 address operated by IRT-VNNIC-AP (AS7552), geolocated to Qui Nhon, Vietnam. Its reverse DNS name is dynamic-adsl.viettel.vn. As of October 12, 2026, IPDebrief rates it Moderate Risk (40/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/171.231.194.41
- Last updated: 2026-10-12

## Ownership

- Organization: IRT-VNNIC-AP
- Network name: VIETTEL-VN
- Allocated block: 171.224.0.0/11
- ASN: AS7552 (https://ipdebrief.com/asn/7552)
- Regional registry: APNIC

## Location

- City: Qui Nhon
- Region: 31
- Country: Vietnam
- Time zone: Asia/Ho_Chi_Minh

## Network classification

- Infrastructure type: —
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- Anycast: no
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Moderate Risk (40/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

- dynamic-adsl.viettel.vn
- Forward-confirmed: no

## Analyst narrative

\# Intelligence Briefing: 171.231.194.41/32

**Classification:** Low Risk | **Status:** Monitored

**Date:** 2026-07-29

\## Executive Summary

IP 171.231.194.41 belongs to Viettel Group (ASN 7552) network VIETTEL-VN with a current risk score of 0. The target IP is identified as "Firewalled / No Services" with no open ports detected. While the IP shows no active malicious indicators, geolocation data indicates a significant discrepancy between reported location (Chicago, IL) and registered ownership (Vietnam).

\## Ownership and Network Context

\- **Organization:** IRT-VNNIC-AP / Viettel Group

\- **ASN:** 7552 (VIETTEL-AS-AP)

\- **CIDR Block:** 171.224.0.0/11

\- **RIR:** APNIC

\- **Geolocation:** US (Chicago, IL) — *Note: Discrepancy with Vietnam-based organization*

\## Threat Indicators

\- **Risk Score:** 0

\- **Blacklist Count:** 0

\- **Tor Exit/Attacker/Spam Source:** False

\- **Known Campaigns:** None identified

\- **Threat Feeds:** Empty

\## Network Behavior

\- **Services:** None detected (firewalled)

\- **DNS Records:** No PTR hostnames; forward resolution not confirmed

\- **Control Plane:** Route stability flagged as false; no BGP prefix data available

\- **Email Authentication:** SPF and DMARC records present for viettel.vn domain

\## Neighborhood Analysis

The /24 subnet (171.231.194.0/24) contains 19 sibling IPs with an abuse density of 0. Risk distribution shows 16 low-risk neighbors, 2 medium-risk, and 0 high-risk. Notable neighbors include:

\- 171.231.194.32 (Risk: 49)

\- 171.231.194.164 (Risk: 40)

\- 171.231.194.17 (Risk: 30)

\## Observation History

Thirteen signals observed over the monitoring period. Recent activity (2026-07-29) includes:

\- DNSSEC validation confirmed for reverse lookup zone

\- ASN 7552 associated with Viettel Group, Vietnam

\- SPF and DMARC records configured for viettel.vn domain

\- Eight blacklist listings detected with medium severity

\## Recommended Actions

No immediate firewall rules or blocking recommendations generated due to low risk profile. However, the geolocation discrepancy warrants additional verification. The subnet shows moderate activity levels among neighboring IPs.

\---

**Analyst Notes:** Monitor for changes in geolocation data or emergence of threat indicators. The presence of blacklist listings (8 total) despite zero current risk score suggests historical activity that should be reviewed in context with observed traffic patterns.

## Nearby addresses

- 171.231.194.14 (https://ipdebrief.com/171.231.194.14)
- 171.231.194.17 (https://ipdebrief.com/171.231.194.17)
- 171.231.194.32 (https://ipdebrief.com/171.231.194.32)
- 171.231.194.43 (https://ipdebrief.com/171.231.194.43)
- 171.231.194.105 (https://ipdebrief.com/171.231.194.105)
- 171.231.194.108 (https://ipdebrief.com/171.231.194.108)
- 171.231.194.113 (https://ipdebrief.com/171.231.194.113)
- 171.231.194.118 (https://ipdebrief.com/171.231.194.118)
- 171.231.194.126 (https://ipdebrief.com/171.231.194.126)
- 171.231.194.143 (https://ipdebrief.com/171.231.194.143)
- 171.231.194.150 (https://ipdebrief.com/171.231.194.150)
- 171.231.194.157 (https://ipdebrief.com/171.231.194.157)

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Source: IPDebrief, "171.231.194.41 IP intelligence", https://ipdebrief.com/171.231.194.41, updated 2026-10-12. Assessments are probabilistic.