# 171.231.181.87 — IP Intelligence Summary

171.231.181.87 is an IPv4 address operated by IRT-VNNIC-AP (AS7552), geolocated to Da Nang, Vietnam. Its reverse DNS name is dynamic-ip-adsl.viettel.vn. As of October 6, 2026, IPDebrief rates it Moderate Risk (50/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/171.231.181.87
- Last updated: 2026-10-06

## 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: Da Nang
- Region: Da Nang
- 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 (50/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

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

## Nearby addresses

- 171.231.181.27 (https://ipdebrief.com/171.231.181.27)
- 171.231.181.37 (https://ipdebrief.com/171.231.181.37)
- 171.231.181.52 (https://ipdebrief.com/171.231.181.52)
- 171.231.181.56 (https://ipdebrief.com/171.231.181.56)
- 171.231.181.57 (https://ipdebrief.com/171.231.181.57)
- 171.231.181.58 (https://ipdebrief.com/171.231.181.58)
- 171.231.181.81 (https://ipdebrief.com/171.231.181.81)
- 171.231.181.97 (https://ipdebrief.com/171.231.181.97)
- 171.231.181.110 (https://ipdebrief.com/171.231.181.110)
- 171.231.181.144 (https://ipdebrief.com/171.231.181.144)
- 171.231.181.154 (https://ipdebrief.com/171.231.181.154)
- 171.231.181.160 (https://ipdebrief.com/171.231.181.160)

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Source: IPDebrief, "171.231.181.87 IP intelligence", https://ipdebrief.com/171.231.181.87, updated 2026-10-06. Assessments are probabilistic.