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 (20y) +6
- Not on any threat blocklist +5
- Trust score 86 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- letterkiosk.net
- Forward-confirmed (FCrDNS)
- ✓ Confirmed
- PTR TTL
- 86400 s
- Reverse DNS last checked
- 2026-07-18 19:25 UTC
- Forward DNS last checked
- 2026-07-18 19:25 UTC
Forward DNS records for letterkiosk.net
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 91.143.87.6 | — | 172800s |
| MX | letterkiosk.net | 10 | — |
| NS | dns1.registrar-servers.com | — | — |
| NS | dns2.registrar-servers.com | — | — |
| TXT | v=DMARC1; p=none; rua=mailto:postmaster@letterkiosk.net; ruf=mailto:dmarc@letterkiosk.net | — | — |
| TXT | v=spf1 a mx ip4:91.143.87.6 -all | — | — |
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.
- payclaims.azblue.com — Jul 3, 2026 → present
- mobilefun.uk.msn.com — Jun 27, 2026 → Jul 3, 2026
- letterkiosk.net — Jun 23, 2026 → Jun 27, 2026
- testtoolkitshop.coca-cola.com — Jun 12, 2026 → Jun 23, 2026
Network Allocation for 91.143.87.6
- CIDR range
- 91.143.80.0/20
- IP range (int)
- 1,536,118,784 — 1,536,122,879
- Prefix length
- /20
- Organization
- ISPpro Internet KG
- ASN
- AS35366
- ASN name
- ISPpro Internet KG
- Location
- Germany
- Coordinates
- 51.299300, 9.491000
- Accuracy radius
- 200 km
- Regional Internet Registry
- RIPE
- Allocated
- 2006-10-30
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-07-09 06:20:55
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 91.143.87.6?
91.143.87.6 is allocated to ISPpro Internet KG (AS35366), registered in Germany.
Where is 91.143.87.6 located?
The geolocation for 91.143.87.6 maps to 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 91.143.87.6 on?
91.143.87.6 belongs to the 91.143.80.0/20 network block announced by AS35366. This range contains 4,096 addresses.
Does 91.143.87.6 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.
