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CIDR
/20 · 4.1K IPs
ASN
Maria Curie-Sklodowska University
Reverse DNS
frl.ae1x235.dhiblang.lubman.net.pl
last known PTR from 68 days 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)
frl.ae1x235.dhiblang.lubman.net.pl
Forward-confirmed (FCrDNS)
✓ Confirmed
PTR TTL
86400 s
Reverse DNS last checked
2026-09-16 23:01 UTC
Forward DNS last checked
2026-09-16 23:01 UTC

Forward DNS records for frl.ae1x235.dhiblang.lubman.net.pl

TypeValuePriorityTTL
A 87.246.234.192 86400s
A 87.246.234.194 86400s
A 87.246.234.195 86400s
A 87.246.234.196 86400s
A 87.246.234.197 86400s
A 87.246.234.198 86400s
A 87.246.234.199 86400s
A 87.246.234.200 86400s
A 87.246.234.201 86400s
A 87.246.234.202 86400s
A 87.246.234.203 86400s
A 87.246.234.204 86400s
A 87.246.234.205 86400s
A 87.246.234.206 86400s
A 87.246.234.207 86400s
A 87.246.234.208 86400s
A 87.246.234.209 86400s
A 87.246.234.210 86400s
A 87.246.234.211 86400s
A 87.246.234.212 86400s
A 87.246.234.213 86400s
A 87.246.234.214 86400s
A 87.246.234.215 86400s
A 87.246.234.216 86400s
A 87.246.234.217 86400s
A 87.246.234.218 86400s
A 87.246.234.219 86400s
A 87.246.234.220 86400s
A 87.246.234.221 86400s
A 87.246.234.222 86400s
A 87.246.234.223 86400s
A 87.246.234.224 86400s
A 87.246.234.225 86400s
A 87.246.234.226 86400s
A 87.246.234.227 86400s
A 87.246.234.228 86400s
A 87.246.234.229 86400s
A 87.246.234.230 86400s
A 87.246.234.231 86400s
A 87.246.234.232 86400s
A 87.246.234.233 86400s
A 87.246.234.234 86400s
A 87.246.234.235 86400s
A 87.246.234.236 86400s
A 87.246.234.237 86400s
A 87.246.234.238 86400s
A 87.246.234.239 86400s
A 87.246.234.240 86400s
A 87.246.234.241 86400s
A 87.246.234.242 86400s
A 87.246.234.243 86400s
A 87.246.234.244 86400s
A 87.246.234.245 86400s
A 87.246.234.246 86400s
A 87.246.234.247 86400s
A 87.246.234.248 86400s
A 87.246.234.249 86400s
A 87.246.234.250 86400s
A 87.246.234.251 86400s
A 87.246.234.252 86400s
A 87.246.234.253 86400s
A 87.246.234.254 86400s
A 87.246.234.255 86400s
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.

Reverse DNS history

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

  1. no PTR — Jul 10, 2026 → present
  2. frl.ae1x235.dhiblang.lubman.net.pl stable — Jun 1, 2026 → Jul 10, 2026

Network Allocation for 87.246.234.224

CIDR range
87.246.224.0/20
IP range (int)
1,475,796,992 — 1,475,801,087
Prefix length
/20
Organization
Maria Curie-Sklodowska University
ASN
AS12346
ASN name
Maria Curie-Sklodowska University
Location
Rejowiec, Lublin, Poland
Coordinates
51.094400, 23.288000
Accuracy radius
50 km
Postal code
22-360
Regional Internet Registry
RIPE
Allocated
2005-09-05
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-09-16 05:23:16

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

Announced prefix
Origin AS
Announcement samples
29,489
Last seen
2026-09-17 10:28:11

Frequently Asked Questions

Who owns 87.246.234.224?

87.246.234.224 is allocated to Maria Curie-Sklodowska University (AS12346), registered in Rejowiec, Poland.

Where is 87.246.234.224 located?

The geolocation for 87.246.234.224 maps to Rejowiec, Poland 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 87.246.234.224 on?

87.246.234.224 belongs to the 87.246.224.0/20 network block announced by AS12346. This range contains 4,096 addresses.

Does 87.246.234.224 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: 2026-09-16 21:38:28 UTC
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