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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- mail.fpark.ru
- Forward-confirmed (FCrDNS)
- ✓ Confirmed
- PTR TTL
- 36000 s
- Reverse DNS last checked
- 2026-08-23 09:52 UTC
- Forward DNS last checked
- 2026-08-23 09:52 UTC
Forward DNS records for mail.fpark.ru
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 81.88.213.186 | — | 172800s |
| A | 82.199.97.235 | — | 172800s |
| TXT | v=spf1 mx a ~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.
- mail.fpark.ru — Jul 2, 2026 → present
- ws213-186.maryno.net stable — Jun 11, 2026 → Jul 2, 2026
Network Allocation for 81.88.213.186
- CIDR range
- 81.88.212.0/23
- IP range (int)
- 1,364,775,936 — 1,364,776,447
- Prefix length
- /23
- Organization
- Extreme Ltd
- ASN
- AS39709
- ASN name
- Extreme Ltd
- Location
- Moscow, Moscow, Russia
- Coordinates
- 55.748700, 37.618700
- Accuracy radius
- 10 km
- Postal code
- 101000
- Regional Internet Registry
- RIPE
- Allocated
- 2006-04-11
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-08-23 05:23:28
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 81.88.213.186?
81.88.213.186 is allocated to Extreme Ltd (AS39709), registered in Moscow, Russia.
Where is 81.88.213.186 located?
The geolocation for 81.88.213.186 maps to Moscow, 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 81.88.213.186 on?
81.88.213.186 belongs to the 81.88.212.0/23 network block announced by AS39709. This range contains 512 addresses.
Does 81.88.213.186 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.
