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CIDR
/20 · 4.1K IPs
ASN
University of Toronto
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 142.150.128.78

CIDR range
142.150.128.0/20
IP range (int)
2,392,227,840 — 2,392,231,935
Prefix length
/20
Organization
University of Toronto
ASN
AS239
ASN name
University of Toronto
Location
Toronto, Ontario, Canada
Coordinates
43.663800, -79.399900
Accuracy radius
20 km
Postal code
M5S
Regional Internet Registry
ARIN
Allocated
1992-07-06
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-07-09 18:20:39

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

Announced prefix
Origin AS
Announcement samples
5,109
Last seen
2026-07-18 16:27:40

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 CA

See the full history for 142.150.0.0/15.

Frequently Asked Questions

Who owns 142.150.128.78?

142.150.128.78 is allocated to University of Toronto (AS239), registered in Toronto, Canada.

Where is 142.150.128.78 located?

The geolocation for 142.150.128.78 maps to Toronto, Canada 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 142.150.128.78 on?

142.150.128.78 belongs to the 142.150.128.0/20 network block announced by AS239. This range contains 4,096 addresses.

Does 142.150.128.78 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 17:37:45 UTC
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