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CIDR
/21 · 2.0K IPs
ASN
Oracle Corporation
Reverse DNS
m.thrive.kaiserpermanente.org
Last scanned 5 days ago
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.

81/100
Trusted
How this score is built

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

DNS records

Reverse DNS (PTR)
stats.weforum.org
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
86400 s
Reverse DNS last checked
2026-09-20 06:43 UTC

Forward DNS records for stats.weforum.org

TypeValuePriorityTTL
A 129.121.108.150 300s
A 129.121.133.70 300s
A 129.121.141.145 300s
A 129.121.93.85 300s
A 146.19.198.190 300s
A 159.253.44.47 300s
A 159.253.47.164 300s
A 172.93.160.142 300s
A 173.195.100.151 300s
A 185.126.115.123 300s
A 185.174.30.41 300s
A 192.36.176.219 300s
A 192.36.176.242 300s
A 192.36.176.243 300s
A 192.36.176.244 300s
A 192.36.176.245 300s
A 192.36.176.248 300s
A 193.169.240.82 300s
A 193.169.241.42 300s
A 195.85.54.218 300s
A 195.85.54.219 300s
A 195.85.54.221 300s
A 195.85.54.222 300s
A 195.85.54.5 300s
A 195.85.54.8 300s
A 31.58.58.116 300s
A 45.13.214.45 300s
A 50.6.23.144 300s
A 50.6.242.74 300s
A 50.6.55.16 300s
A 72.14.147.67 300s
A 72.14.147.79 300s
A 72.14.147.80 300s
A 72.14.147.82 300s
A 72.14.147.85 300s
A 72.14.147.88 300s
A 85.121.245.139 300s
A 85.121.55.195 300s
A 85.122.122.25 300s
A 89.252.128.131 300s
A 89.252.128.132 300s
A 89.252.128.142 300s
A 89.252.128.143 300s
A 89.252.128.146 300s
A 89.252.158.138 300s
A 89.252.158.144 300s
A 89.252.158.147 300s
A 89.252.175.130 300s
A 89.252.175.147 300s
A 89.252.175.151 300s
A 89.252.175.152 300s
A 89.252.175.153 300s
A 89.43.67.40 300s
A 89.43.67.41 300s
A 89.43.67.54 300s
A 93.113.62.232 300s
A 93.113.62.238 300s
A 93.113.62.239 300s
A 93.113.62.240 300s
A 93.113.62.247 300s
A 95.173.160.46 300s
A 95.173.160.47 300s
A 95.173.160.61 300s
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Network Allocation for 129.121.141.145

CIDR range
129.121.136.0/21
IP range (int)
2,172,225,536 — 2,172,227,583
Prefix length
/21
Organization
Oracle Corporation
ASN
AS31898
ASN name
Oracle Corporation
Location
Ashburn, Virginia, United States
Coordinates
39.046900, -77.490300
Accuracy radius
20 km
Postal code
20149
Regional Internet Registry
ARIN
Allocated
1988-03-11
Data source(s)
maxmind_city, maxmind_country, ipinfo_lite, maxmind_asn
Last updated
2026-09-16 06:08:34

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

Announced prefix
Origin AS
Announcement samples
3,873
Last seen
2026-09-20 09:42:32

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
2026-05-10 New Allocation US

See the full history for 129.121.128.0/17.

Frequently Asked Questions

Who owns 129.121.141.145?

129.121.141.145 is allocated to Oracle Corporation (AS31898), registered in Ashburn, United States.

Where is 129.121.141.145 located?

The geolocation for 129.121.141.145 maps to Ashburn, 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 129.121.141.145 on?

129.121.141.145 belongs to the 129.121.136.0/21 network block announced by AS31898. This range contains 2,048 addresses.

Does 129.121.141.145 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: 2026-09-16 15:20:58 UTC
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