217.91.64.144
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.
- Baseline (neutral) 65
- Forward-confirmed reverse DNS (FCrDNS) +10
- Long-established allocation (26y) +6
- Not on any threat blocklist +5
- Isp allocation +5
- Trust score 91 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- mail.dsautomation.de
- Forward-confirmed (FCrDNS)
- ✓ Confirmed
- PTR TTL
- 86400 s
- Reverse DNS last checked
- 2026-10-01 04:24 UTC
- Forward DNS last checked
- 2026-10-01 04:24 UTC
Forward DNS records for mail.dsautomation.de
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 217.91.64.144 | — | 172800s |
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.
This IP's reverse DNS changes frequently — the timeline below shows the most recent changes.
Reverse-DNS changes between Sep 30, 2026 and Oct 1, 2026 were not recorded; the current PTR is shown from its earliest retained observation.
- mail.dsautomation.de — since at least Oct 1, 2026 → present
- autodiscover.dsautomation.de — Sep 30, 2026 → Oct 1, 2026
- dsautomation.de — Sep 29, 2026 → Sep 30, 2026
- dsserver.dsautomation.de — Sep 29, 2026 → Sep 29, 2026
- mail.dsautomation.de — Sep 28, 2026 → Sep 29, 2026
- autodiscover.dsautomation.de — Sep 26, 2026 → Sep 28, 2026
- mail.dsautomation.de — Sep 26, 2026 → Sep 26, 2026
- dsautomation.de — Sep 25, 2026 → Sep 26, 2026
- mail.dsautomation.de — Aug 24, 2026 → Sep 25, 2026
- dsserver.dsautomation.de — Aug 19, 2026 → Aug 24, 2026
- autodiscover.dsautomation.de — Aug 18, 2026 → Aug 19, 2026
- dsautomation.de — Jul 10, 2026 → Aug 18, 2026
- mail.dsautomation.de — Jul 8, 2026 → Jul 10, 2026
- dsserver.dsautomation.de — Jun 13, 2026 → Jul 8, 2026
- mail.dsautomation.de — Jun 5, 2026 → Jun 13, 2026
Network Allocation for 217.91.64.144
- CIDR range
- 217.91.64.0/18
- IP range (int)
- 3,646,636,032 — 3,646,652,415
- Prefix length
- /18
- Organization
- Deutsche Telekom AG
- ASN
- AS3320
- ASN name
- Deutsche Telekom AG
- Location
- Hanover, Lower Saxony, Germany
- Coordinates
- 52.372400, 9.741300
- Accuracy radius
- 200 km
- Postal code
- 30159
- Regional Internet Registry
- RIPE
- Allocated
- 2000-10-26
- Data source(s)
- maxmind_city, ipinfo_lite, maxmind_country, maxmind_asn
- Last updated
- 2026-09-29 04:10:28
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 217.91.64.144?
217.91.64.144 is allocated to Deutsche Telekom AG (AS3320), registered in Hanover, Germany.
Where is 217.91.64.144 located?
The geolocation for 217.91.64.144 maps to Hanover, Germany 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 217.91.64.144 on?
217.91.64.144 belongs to the 217.91.64.0/18 network block announced by AS3320. This range contains 16,384 addresses.
Does 217.91.64.144 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.
