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CIDR
/19 · 8.2K IPs
ASN
Office of The Chief Information Officer (OCIO)
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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network Allocation for 143.216.93.155

CIDR range
143.216.64.0/19
IP range (int)
2,413,314,048 — 2,413,322,239
Prefix length
/19
Organization
Office of The Chief Information Officer OCIO
ASN
AS136572
ASN name
Office of The Chief Information Officer (OCIO)
Location
Adelaide, South Australia, Australia
Coordinates
-34.928200, 138.599900
Accuracy radius
10 km
Postal code
5000
Regional Internet Registry
ARIN
Allocated
1991-01-23
Data source(s)
maxmind_city, maxmind_asn, maxmind_country, ipinfo_lite
Last updated
2026-06-28 00:23:34

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

Announced prefix
Origin AS
Announcement samples
8,371
Last seen
2026-07-24 04:09:19

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 RIR Transfer arin apnic

See the full history for 143.216.0.0/16.

Frequently Asked Questions

Who owns 143.216.93.155?

143.216.93.155 is allocated to Office of The Chief Information Officer OCIO (AS136572), registered in Adelaide, Australia.

Where is 143.216.93.155 located?

The geolocation for 143.216.93.155 maps to Adelaide, Australia 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 143.216.93.155 on?

143.216.93.155 belongs to the 143.216.64.0/19 network block announced by AS136572. This range contains 8,192 addresses.

Does 143.216.93.155 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: 2026-07-24 04:19:28 UTC
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