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CIDR
/20 · 4.1K IPs
ASN
CLARO S.A.
Reverse DNS
No PTR record
Blocklisted
Checking…
Scanning blocklists

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.

76/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Network Allocation for 187.43.133.48

CIDR range
187.43.128.0/20
IP range (int)
3,140,190,208 — 3,140,194,303
Prefix length
/20
Organization
CLARO S.A.
ASN
AS4230
ASN name
CLARO S.A.
Location
São Paulo, S O Paulo, Brazil
Coordinates
-23.547500, -46.636100
Accuracy radius
10 km
Postal code
01000
Regional Internet Registry
LACNIC
Allocated
2009-01-15
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-07-11 09:24:13

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
220
Last seen
2026-07-18 06:46:06

Frequently Asked Questions

Who owns 187.43.133.48?

187.43.133.48 is allocated to CLARO S.A. (AS4230), registered in São Paulo, Brazil.

Where is 187.43.133.48 located?

The geolocation for 187.43.133.48 maps to São Paulo, 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 187.43.133.48 on?

187.43.133.48 belongs to the 187.43.128.0/20 network block announced by AS4230. This range contains 4,096 addresses.

Does 187.43.133.48 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.

Related

Last updated: 2026-07-18 09:07:56 UTC
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