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CIDR
/21 · 2.0K IPs
ASN
Viettel Group
Reverse DNS
No PTR record
Blocklisted
Checking…
Scanning blocklists

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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Reverse DNS history

How this IP's reverse DNS (PTR) has changed over time, from our scans.

  1. dynamic-ip-adsl.viettel.vn — Jul 1, 2026 → present
  2. dynamic-adsl.viettel.vn — Jun 24, 2026 → Jul 1, 2026
  3. dynamic-ip-adsl.viettel.vn — Jun 5, 2026 → Jun 24, 2026

Network Allocation for 171.253.184.55

CIDR range
171.253.184.0/21
IP range (int)
2,885,531,648 — 2,885,533,695
Prefix length
/21
Organization
Viettel Group
ASN
AS7552
ASN name
Viettel Group
Location
Thu Dau Mot, B Nh D Ng Province, Vietnam
Coordinates
10.979400, 106.648500
Accuracy radius
50 km
Postal code
075100
Regional Internet Registry
APNIC
Allocated
2011-03-04
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-09-11 05:25:12

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
80,250
Last seen
2026-09-11 17:19:27

Frequently Asked Questions

Who owns 171.253.184.55?

171.253.184.55 is allocated to Viettel Group (AS7552), registered in Thu Dau Mot, Vietnam.

Where is 171.253.184.55 located?

The geolocation for 171.253.184.55 maps to Thu Dau Mot, Vietnam based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 171.253.184.55 on?

171.253.184.55 belongs to the 171.253.184.0/21 network block announced by AS7552. This range contains 2,048 addresses.

Does 171.253.184.55 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

Related

Last updated: 2026-09-11 17:46:02 UTC
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