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IPv4 Address

5.223.65.38

Hetzner Online GmbH AS215859 · Hetzner Online GmbH Singapore Singapore RIPE 🛡️ Proxy/VPN (likely) 🖥️ Hosting/DC
Within
5.223.0.0/16
CIDR
/16 · 65.5K IPs
ASN
Hetzner Online GmbH
Reverse DNS
mx1.cnx.email
Last scanned 15 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.

69/100
Moderate
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)
mx1.cnx.email
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
86400 s
Reverse DNS last checked
2026-07-18 16:39 UTC
Forward DNS last checked
2026-07-18 16:39 UTC

Forward DNS records for mx1.cnx.email

TypeValuePriorityTTL
A 104.21.24.30 172800s
A 172.67.216.128 172800s
A 5.223.65.38 172800s
AAAA 2606:4700:3033::6815:181e 172800s
AAAA 2606:4700:3035::ac43:d880 172800s
AAAA 2a01:4ff:2f0:1963::1 172800s
TXT v=spf1 a -all
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. mx1.cnx.email stable — Jun 18, 2026 → present
  2. box.cnx.email stable — Jun 11, 2026 → Jun 18, 2026

Network Allocation for 5.223.65.38

CIDR range
5.223.0.0/16
IP range (int)
98,500,608 — 98,566,143
Prefix length
/16
Organization
Hetzner Online GmbH
ASN
AS215859
ASN name
Hetzner Online GmbH
Location
Singapore, Singapore
Coordinates
1.287200, 103.850700
Accuracy radius
20 km
Postal code
17
Regional Internet Registry
RIPE
Data source(s)
maxmind_city, maxmind_asn, maxmind_country, ipinfo_lite
Last updated
2026-07-11 09:19:14

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

Announced prefix
Origin AS
Announcement samples
3,677
Last seen
2026-07-18 16:27:51

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 DE

See the full history for 5.223.0.0/16.

Frequently Asked Questions

Who owns 5.223.65.38?

5.223.65.38 is allocated to Hetzner Online GmbH (AS215859), registered in Singapore, Singapore.

Where is 5.223.65.38 located?

The geolocation for 5.223.65.38 maps to Singapore, Singapore 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 5.223.65.38 on?

5.223.65.38 belongs to the 5.223.0.0/16 network block announced by AS215859. This range contains 65,536 addresses.

Does 5.223.65.38 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 09:07:44 UTC
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