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
- Not on any threat blocklist +5
- Recently allocated (1y) −3
- Trust score 77 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- 8346089-vr540785.twc1.net
- Forward-confirmed (FCrDNS)
- ✓ Confirmed
- PTR TTL
- 600 s
- Reverse DNS last checked
- 2026-07-21 18:14 UTC
- Forward DNS last checked
- 2026-07-21 18:14 UTC
Forward DNS records for 8346089-vr540785.twc1.net
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 201.51.4.90 | — | 172800s |
| AAAA | 2a03:6f00:a::2:95cb | — | 172800s |
| MX | 8346089-vr540785.twc1.net | 10 | — |
| NS | ns1.timeweb.ru | — | — |
| NS | ns2.timeweb.ru | — | — |
| NS | ns3.timeweb.org | — | — |
| NS | ns4.timeweb.org | — | — |
| TXT | SPF "v=spf1 a mx -all" | — | — |
| TXT | v=DMARC1; p=reject; sp=reject; pct=100; aspf=s; | — | — |
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Network Allocation for 201.51.4.90
- CIDR range
- 201.51.4.0/23
- IP range (int)
- 3,375,563,776 — 3,375,564,287
- Prefix length
- /23
- Organization
- Jsc timeweb
- ASN
- AS9123
- ASN name
- Jsc timeweb
- Location
- Queimados, Rio De Janeiro, Brazil
- Coordinates
- -4.583300, 55.666700
- Accuracy radius
- 1000 km
- Postal code
- 26300
- Regional Internet Registry
- LACNIC
- Allocated
- 2025-03-13
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-07-11 00:20:48
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
RIR Ownership History
Atom feed ⇲Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-28 | RIR Transfer | lacnic | ripe |
| 2026-05-28 | Country Change | BR | SC |
| 2026-05-10 | RIR Transfer | lacnic | arin |
| 2026-05-10 | Country Change | BR | US |
See the full history for 201.51.0.0/19.
Frequently Asked Questions
Who owns 201.51.4.90?
201.51.4.90 is allocated to Jsc timeweb (AS9123), registered in Queimados, Brazil.
Where is 201.51.4.90 located?
The geolocation for 201.51.4.90 maps to Queimados, Brazil 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 201.51.4.90 on?
201.51.4.90 belongs to the 201.51.4.0/23 network block announced by AS9123. This range contains 512 addresses.
Does 201.51.4.90 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.
