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CIDR
/20 · 4.1K IPs
ASN
Far EastTone Telecommunication Co., Ltd.
Reverse DNS
39-12-72-6.adsl.fetnet.net
Last scanned 4 hr ago
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.

86/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
39-12-72-6.adsl.fetnet.net
Forward-confirmed (FCrDNS)
✓ Confirmed
PTR TTL
3600 s
Reverse DNS last checked
2026-07-24 16:16 UTC
Forward DNS last checked
2026-07-24 16:16 UTC
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Network Allocation for 39.12.72.6

CIDR range
39.12.64.0/20
IP range (int)
655,114,240 — 655,118,335
Prefix length
/20
Organization
Far EastTone Telecommunication Co., Ltd.
ASN
AS18412
ASN name
Far EastTone Telecommunication Co., Ltd.
Location
Taiwan
Coordinates
24.000000, 121.000000
Accuracy radius
100 km
Regional Internet Registry
APNIC
Allocated
2011-04-06
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-07-08 18:20:41

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

Announced prefix
Origin AS
Announcement samples
3,878
Last seen
2026-07-24 20:28:13

Frequently Asked Questions

Who owns 39.12.72.6?

39.12.72.6 is allocated to Far EastTone Telecommunication Co., Ltd. (AS18412), registered in Taiwan.

Where is 39.12.72.6 located?

The geolocation for 39.12.72.6 maps to Taiwan 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 39.12.72.6 on?

39.12.72.6 belongs to the 39.12.64.0/20 network block announced by AS18412. This range contains 4,096 addresses.

Does 39.12.72.6 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: 2026-07-24 20:53:37 UTC
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