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CIDR
/20 · 4.1K IPs
ASN
Proximus NV
Reverse DNS
186.139-131-109.adsl-dyn.isp.belgacom.be
last known PTR from 31 min ago
Blocklisted
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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.

81/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.1 — 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.

Reverse-DNS changes between Jun 11, 2026 and Sep 28, 2026 were not recorded; the current PTR is shown from its earliest retained observation.

  1. no PTR — since at least Sep 28, 2026 → present
  2. 186.139-131-109.adsl-dyn.isp.belgacom.be stable — Jun 11, 2026 → Sep 28, 2026

Network Allocation for 109.131.139.186

CIDR range
109.131.128.0/20
IP range (int)
1,837,334,528 — 1,837,338,623
Prefix length
/20
Organization
Proximus NV
ASN
AS5432
ASN name
Proximus NV
Location
Brussels, Brussels Capital, Belgium
Coordinates
50.853400, 4.347000
Accuracy radius
5 km
Postal code
1000
Regional Internet Registry
RIPE
Allocated
2009-07-27
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-09-26 05:24:32

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

Announced prefix
Origin AS
Announcement samples
315,717
Last seen
2026-09-28 03:34:30

Frequently Asked Questions

Who owns 109.131.139.186?

109.131.139.186 is allocated to Proximus NV (AS5432), registered in Brussels, Belgium.

Where is 109.131.139.186 located?

The geolocation for 109.131.139.186 maps to Brussels, Belgium 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 109.131.139.186 on?

109.131.139.186 belongs to the 109.131.128.0/20 network block announced by AS5432. This range contains 4,096 addresses.

Does 109.131.139.186 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: 2026-09-26 16:56:36 UTC
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