138.51.0.7
Education
Data retrieved at
Network
ASN
IP Range
Company
University of Toronto
Network
CA-NET
Using networksdb.io for network lookups.
Hostname
Not available.
AS Domain
utoronto.ca
Using host.io for pre-visualize domains.
Type
Education
Handle
NET-138-51-0-0-1
Registered
1990-02-06
Last Changed
2021-12-14
View raw RDAP
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"cidr0_cidrs": [
{
"v4prefix": "138.51.0.0",
"length": 16
}
],
"endAddress": "138.51.255.255",
"entities": [
{
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"eventDate": "2025-10-09T10:00:59-04:00"
},
{
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"eventDate": "2002-09-19T14:58:04-04:00"
}
],
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},
{
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},
{
"eventAction": "registration",
"eventDate": "1996-05-02T12:01:56-04:00"
}
],
"handle": "RS2206-ARIN",
"links": [
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"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
},
{
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"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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{},
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{},
"text",
"[email protected]"
],
[
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{
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"text",
"+1-416-978-0470"
],
[
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{
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"+1-416-803-0080"
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{
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"fax"
]
},
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"+1-416-978-6620"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-10-20T13:55:56-04:00"
},
{
"eventAction": "registration",
"eventDate": "1988-09-20T00:00:00-04:00"
}
],
"handle": "UNIVER-36",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UNIVER-36",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
},
{
"href": "https://whois.arin.net/rest/org/UNIVER-36",
"rel": "alternate",
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"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
"vcardArray": [
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[
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{},
"text",
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],
[
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{},
"text",
"University of Toronto"
],
[
"adr",
{
"label": "Information & Technology Services\r\n4 Bancroft Avenue\r\nROOM 101C\nTORONTO\nON\nM5S 1C1\nCanada"
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},
{
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"eventDate": "2002-09-19T14:58:04-04:00"
}
],
"handle": "NSTEC-ARIN",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
},
{
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}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
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],
"title": "Registration Comments"
}
],
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[
[
"version",
{},
"text",
"4.0"
],
[
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{
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},
"text",
[
"",
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"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"NS-TECH"
],
[
"org",
{},
"text",
"University of Toronto"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-416-978-4621"
],
[
"tel",
{
"type": [
"work",
"cell"
]
},
"text",
"+1-416-803-0080"
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[
"tel",
{
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]
},
"text",
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],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-12-14T20:28:37-05:00"
},
{
"eventAction": "registration",
"eventDate": "1990-02-06T00:00:00-05:00"
}
],
"handle": "NET-138-51-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/138.51.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
},
{
"href": "https://whois.arin.net/rest/net/NET-138-51-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
}
],
"name": "CA-NET",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
}
],
"title": "Terms of Service"
},
{
"description": [
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],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/138.51.0.7"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-138-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
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"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "138.51.0.0",
"status": [
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],
"type": "DIRECT ALLOCATION"
}
Security
No security threats detected for this IP.
VPN
Proxy
Tor
Hosting
Residential Proxy
Bogon
Abuser
Crawler
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Unknown.
No valid ROA was found for this prefix.
UNKNOWN
Validated Prefix
138.51.0.0/17
Authorized ASN
Not available.
Abuse Contacts
IP Geolocation
Country
Canada
City
Toronto (📍 M4Y)
Ontario
Time Zone
America/Toronto
Coordinates
43.6667, -79.3804
Continent
North America
European Union
No.
Phone prefix
+1
Currency
Canadian Dollar (CAD $)