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CIDR
/24 · 256 IPs
ASN
TDC Holding A/S
Reverse DNS
0x5359fa1b.static.cust.fastspeed.dk
Last scanned 8 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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
0x5359fa1b.static.cust.fastspeed.dk
Forward-confirmed (FCrDNS)
✓ Confirmed
PTR TTL
43200 s
Reverse DNS last checked
2026-07-18 08:14 UTC
Forward DNS last checked
2026-07-18 08:14 UTC

Forward DNS records for 0x5359fa1b.static.cust.fastspeed.dk

TypeValuePriorityTTL
A 83.89.250.27 172800s
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 83.89.250.27

CIDR range
83.89.250.0/24
IP range (int)
1,398,405,632 — 1,398,405,887
Prefix length
/24
Organization
TDC Holding A/S
ASN
AS3292
ASN name
TDC Holding A/S
Location
Ishøj, Capital Region, Denmark
Coordinates
55.614900, 12.346500
Accuracy radius
20 km
Postal code
2635
Regional Internet Registry
RIPE
Allocated
2003-12-01
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-07-08 00:18:57

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

Announced prefix
Origin AS
Announcement samples
3,366
Last seen
2026-07-18 15:24:58

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.

Date Event From To
2026-05-10 New Allocation DK

See the full history for 83.89.0.0/16.

Frequently Asked Questions

Who owns 83.89.250.27?

83.89.250.27 is allocated to TDC Holding A/S (AS3292), registered in Ishøj, Denmark.

Where is 83.89.250.27 located?

The geolocation for 83.89.250.27 maps to Ishøj, Denmark 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 83.89.250.27 on?

83.89.250.27 belongs to the 83.89.250.0/24 network block announced by AS3292. This range contains 256 addresses.

Does 83.89.250.27 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: 2026-07-18 09:05:43 UTC
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