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CIDR
/20 · 4.1K IPs
ASN
Telefonica De Espana S.a.u.
Reverse DNS
mail.@fundacionmlc.org
Last scanned 12 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.

85/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
mail.@fundacionmlc.org
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
21600 s
Reverse DNS last checked
2026-10-01 05:00 UTC
Forward DNS last checked
2026-10-01 05:00 UTC

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

Reverse DNS history

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

  1. mail.@fundacionmlc.org — Aug 17, 2026 → present
  2. mail.\@fundacionmlc.org stable — Jun 16, 2026 → Aug 17, 2026

Network Allocation for 83.48.29.239

CIDR range
83.48.16.0/20
IP range (int)
1,395,658,752 — 1,395,662,847
Prefix length
/20
Organization
Telefonica De Espana S.a.u.
ASN
AS3352
ASN name
Telefonica De Espana S.a.u.
Location
Madrid, Madrid, Spain
Coordinates
40.417200, -3.684000
Accuracy radius
200 km
Postal code
28004
Regional Internet Registry
RIPE
Allocated
2004-10-07
Data source(s)
maxmind_city, maxmind_asn, maxmind_country, ipinfo_lite
Last updated
2026-09-09 05:22:54

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

Announced prefix
Origin AS
Announcement samples
10,661
Last seen
2026-10-01 16:21:55

Frequently Asked Questions

Who owns 83.48.29.239?

83.48.29.239 is allocated to Telefonica De Espana S.a.u. (AS3352), registered in Madrid, Spain.

Where is 83.48.29.239 located?

The geolocation for 83.48.29.239 maps to Madrid, Spain 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 83.48.29.239 on?

83.48.29.239 belongs to the 83.48.16.0/20 network block announced by AS3352. This range contains 4,096 addresses.

Does 83.48.29.239 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: 2026-10-01 08:27:26 UTC
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