5.3.107.143
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
- Not on any threat blocklist +5
- Isp allocation +5
- Established allocation (14y) +3
- Trust score 78 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
Reverse-DNS changes between Jun 11, 2026 and Sep 30, 2026 were not recorded; the current PTR is shown from its earliest retained observation.
- no PTR — since at least Sep 30, 2026 → present
- 5x3x107x143.static-business.spb.ertelecom.ru stable — Jun 11, 2026 → Sep 30, 2026
Network Allocation for 5.3.107.143
- CIDR range
- 5.3.104.0/21
- IP range (int)
- 84,109,312 — 84,111,359
- Prefix length
- /21
- Organization
- JSC ER-Telecom Holding
- ASN
- AS31363
- ASN name
- JSC ER-Telecom Holding
- Location
- Moscow, Moscow, Russia
- Coordinates
- 55.748700, 37.618700
- Accuracy radius
- 200 km
- Postal code
- 101000
- Regional Internet Registry
- RIPE
- Allocated
- 2012-04-27
- Data source(s)
- maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
- Last updated
- 2026-09-30 06:05:34
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 5.3.107.143?
5.3.107.143 is allocated to JSC ER-Telecom Holding (AS31363), registered in Moscow, Russia.
Where is 5.3.107.143 located?
The geolocation for 5.3.107.143 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 5.3.107.143 on?
5.3.107.143 belongs to the 5.3.104.0/21 network block announced by AS31363. This range contains 2,048 addresses.
Does 5.3.107.143 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.
