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 (15y) +6
- Not on any threat blocklist +5
- Trust score 86 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- mail.prodoholding.com
- Forward-confirmed (FCrDNS)
- ✓ Confirmed
- PTR TTL
- 38400 s
- Reverse DNS last checked
- 2026-09-29 07:22 UTC
- Forward DNS last checked
- 2026-09-29 07:22 UTC
Forward DNS records for mail.prodoholding.com
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 91.228.239.155 | — | 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.
- mail.prodoholding.com — Sep 27, 2026 → present
- phol-gw1.prodoholding.com — Sep 27, 2026 → Sep 27, 2026
- mail.prodoholding.com — Sep 26, 2026 → Sep 27, 2026
- phol-gw1.prodoholding.com — Sep 25, 2026 → Sep 26, 2026
- mail.prodoholding.com — Aug 25, 2026 → Sep 25, 2026
- phol-gw1.prodoholding.com — Aug 19, 2026 → Aug 25, 2026
- mail.prodoholding.com — Aug 18, 2026 → Aug 19, 2026
- phol-gw1.prodoholding.com — Jul 5, 2026 → Aug 18, 2026
- mail.prodoholding.com — Jun 29, 2026 → Jul 5, 2026
- phol-gw1.prodoholding.com — Jun 28, 2026 → Jun 29, 2026
- mail.prodoholding.com — Jun 25, 2026 → Jun 28, 2026
- phol-gw1.prodoholding.com — Jun 25, 2026 → Jun 25, 2026
- mail.prodoholding.com — Jun 15, 2026 → Jun 25, 2026
- phol-gw1.prodoholding.com — Jun 12, 2026 → Jun 15, 2026
Network Allocation for 91.228.239.155
- CIDR range
- 91.228.238.0/23
- IP range (int)
- 1,541,729,792 — 1,541,730,303
- Prefix length
- /23
- Organization
- Advanced Solutions LLC
- ASN
- AS57487
- ASN name
- Advanced Solutions LLC
- Location
- Russia
- Coordinates
- 55.738600, 37.606800
- Accuracy radius
- 1000 km
- Regional Internet Registry
- RIPE
- Allocated
- 2011-06-09
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-07-11 00:20:23
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 91.228.239.155?
91.228.239.155 is allocated to Advanced Solutions LLC (AS57487), registered in Russia.
Where is 91.228.239.155 located?
The geolocation for 91.228.239.155 maps to Russia 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 91.228.239.155 on?
91.228.239.155 belongs to the 91.228.238.0/23 network block announced by AS57487. This range contains 512 addresses.
Does 91.228.239.155 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.
