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CIDR
/22 · 1.0K IPs
ASN
OARnet
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.

80/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network Allocation for 131.187.129.5

CIDR range
131.187.128.0/22
IP range (int)
2,210,103,296 — 2,210,104,319
Prefix length
/22
Organization
OARnet
ASN
AS600
ASN name
OARnet
Location
Dublin, Ohio, United States
Coordinates
40.110400, -83.113100
Accuracy radius
20 km
Postal code
43017
Regional Internet Registry
ARIN
Allocated
1989-01-03
Data source(s)
maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
Last updated
2026-07-09 18:20:37

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

Announced prefix
Origin AS
Announcement samples
10,221
Last seen
2026-08-26 19:11:40

Frequently Asked Questions

Who owns 131.187.129.5?

131.187.129.5 is allocated to OARnet (AS600), registered in Dublin, United States.

Where is 131.187.129.5 located?

The geolocation for 131.187.129.5 maps to Dublin, United States 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 131.187.129.5 on?

131.187.129.5 belongs to the 131.187.128.0/22 network block announced by AS600. This range contains 1,024 addresses.

Does 131.187.129.5 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: 2026-08-26 01:09:58 UTC
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