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WorldIP.io
CIDR
/20 · 4.1K IPs
ASN
DDFR IT Infra & Security B.V.
Reverse DNS
166.5-12-147.kabelnoord.net
last known PTR from 4 hr ago
Blocklisted
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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 v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Domains hosted

as of 2026-11-12 UTC

0

issued.live's latest DNS data shows no domain resolving to this IP.

Domain data provided by issued.live — for full details visit https://issued.live/pricing

Reverse DNS history

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

Reverse-DNS changes between Jun 24, 2026 and Nov 12, 2026 were not recorded; the current PTR is shown from its earliest retained observation.

  1. no PTR — since at least Nov 12, 2026 → present
  2. 166.5-12-147.kabelnoord.net stable — Jun 24, 2026 → Nov 12, 2026

Network Allocation for 147.12.5.166

CIDR range
147.12.0.0/20
IP range (int)
2,467,037,184 — 2,467,041,279
Prefix length
/20
Organization
DDFR IT Infra & Security B.V.
ASN
AS35467
ASN name
DDFR IT Infra & Security B.V.
Location
Siegerswoude, Friesland, The Netherlands
Coordinates
53.101500, 6.237500
Accuracy radius
20 km
Postal code
9248
Regional Internet Registry
RIPE
Allocated
1991-03-28
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-11-11 08:47:33

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

Announced prefix
Origin AS
Announcement samples
53,826
Last seen
2026-11-12 03:53:04

RIR Ownership History

Atom feed ⇲

Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours, for ranges that have contained this IP.

Date Event From To
2026-05-10 RIR Transfer arin ripe

See the full history for 147.12.0.0/20.

Frequently Asked Questions

Who owns 147.12.5.166?

147.12.5.166 is allocated to DDFR IT Infra & Security B.V. (AS35467), registered in Siegerswoude, The Netherlands.

Where is 147.12.5.166 located?

The geolocation for 147.12.5.166 maps to Siegerswoude, The Netherlands 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 147.12.5.166 on?

147.12.5.166 belongs to the 147.12.0.0/20 network block announced by AS35467. This range contains 4,096 addresses.

Does 147.12.5.166 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: 2026-11-11 23:17:38 UTC
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