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 (21y) +6
- Not on any threat blocklist +5
- Enterprise allocation +4
- Trust score 90 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- portal.listgrp.com
- Forward-confirmed (FCrDNS)
- ✓ Confirmed
- PTR TTL
- 86400 s
- Reverse DNS last checked
- 2026-10-10 06:11 UTC
- Forward DNS last checked
- 2026-10-10 06:11 UTC
Forward DNS records for portal.listgrp.com
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 87.102.255.254 | — | 172800s |
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Domains hosted
as of 2026-10-04 UTC0
issued.live saw no domain resolving to this IP in its latest weekly snapshot.
Domain data provided by issued.live — for full details visit https://issued.live/pricing
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.
- portal.listgrp.com — Oct 10, 2026 → present
- portal.list.ch — Oct 9, 2026 → Oct 10, 2026
- portal.listgrp.com — Oct 7, 2026 → Oct 9, 2026
- portal.list.ch — Oct 6, 2026 → Oct 7, 2026
- portal.listgrp.com — Oct 2, 2026 → Oct 6, 2026
- portal.list.ch — Sep 28, 2026 → Oct 2, 2026
- portal.listgrp.com — Sep 25, 2026 → Sep 28, 2026
- portal.list.ch — Aug 25, 2026 → Sep 25, 2026
- portal.listgrp.com — Jul 10, 2026 → Aug 25, 2026
- portal.list.ch — Jul 2, 2026 → Jul 10, 2026
- portal.listgrp.com — Jun 25, 2026 → Jul 2, 2026
- portal.list.ch — Jun 12, 2026 → Jun 25, 2026
Network Allocation for 87.102.255.254
- CIDR range
- 87.102.254.0/23
- IP range (int)
- 1,466,367,488 — 1,466,367,999
- Prefix length
- /23
- Organization
- ImproWare AG
- ASN
- AS6772
- ASN name
- ImproWare AG
- Location
- Dornach, Solothurn, Switzerland
- Coordinates
- 47.474500, 7.613700
- Accuracy radius
- 5 km
- Postal code
- 4143
- Regional Internet Registry
- RIPE
- Allocated
- 2005-10-19
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-10-09 05:23:33
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 87.102.255.254?
87.102.255.254 is allocated to ImproWare AG (AS6772), registered in Dornach, Switzerland.
Where is 87.102.255.254 located?
The geolocation for 87.102.255.254 maps to Dornach, Switzerland 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 87.102.255.254 on?
87.102.255.254 belongs to the 87.102.254.0/23 network block announced by AS6772. This range contains 512 addresses.
Does 87.102.255.254 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.
