Organization
City St. George's, University of London
UKCITY-NET
Location
London
England, United Kingdom (GB)
Hostname
—
Geolocation
United Kingdom (GB) United Kingdom
- Country
- United Kingdom (GB)
- Region
- England
- City
- London
- Continent
- Europe
- Coordinates
- 51.5279, -0.1024 View on map ↗
Network Information
IP Range 138.40.0.0 – 138.40.255.255 CIDR 138.40.0.0/16 Network Name UKCITY-NET Handle 138.40.0.0 - 138.40.255.255 Type LEGACY Parent Network 0.0.0.0 - 255.255.255.255 Organization City St. George's, University of London Organization ID ORG-CUL15-RIPE Address Computer Unit, 10 Northampton Square, London, EC1V 0HB, United Kingdom Country United Kingdom (GB) Registry RIPE NCC Description City St. George's, University of London Registered On Jan 01, 1970 Last Updated Sep 22, 2026 Status
active
ASN & Routing
Origin AS AS786 AS Name JANET - Jisc Services Limited, GB Announced Prefix 138.40.0.0/16 AS Registry RIPE NCC Prefix Country United Kingdom (GB) Allocated 1990-01-31 RPKI Origin Valid (covered by a matching ROA)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Email [email protected]
Raw RDAP Response
{
"handle": "138.40.0.0 - 138.40.255.255",
"startAddress": "138.40.0.0",
"endAddress": "138.40.255.255",
"ipVersion": "v4",
"name": "UKCITY-NET",
"type": "LEGACY",
"country": "GB",
"parentHandle": "0.0.0.0 - 255.255.255.255",
"cidr0_cidrs": [
{
"v4prefix": "138.40.0.0",
"length": 16
}
],
"status": [
"active"
],
"entities": [
{
"handle": "EM11653-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/EM11653-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "JANET-HOSTMASTER",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/JANET-HOSTMASTER"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "ORG-CUL15-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"City St. George's, University of London"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Computer Unit\n10 Northampton Square\nLondon\nEC1V 0HB\nUnited Kingdom"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-CUL15-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "RIPE-NCC-LEGACY-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/RIPE-NCC-LEGACY-MNT"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "CULA1-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"City University London Abuse contact"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "City University London\n10 Northampton Square\nLondon\nEC1V 0HB\nUK"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"abuse"
],
"entities": [
{
"handle": "JANET-HOSTMASTER",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/JANET-HOSTMASTER"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
}
],
"objectClassName": "entity"
}
],
"remarks": [
{
"description": [
"City St. George's, University of London"
]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/138.40.0.0%20-%20138.40.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/138.40.0.0%20-%20138.40.255.255?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-down/138.40.0.0%20-%20138.40.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/138.40.0.0%20-%20138.40.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/138.40.0.0%20-%20138.40.255.255?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-bottom/138.40.0.0%20-%20138.40.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "self",
"href": "https://rdap.db.ripe.net/ip/138.40.0.0",
"type": "application/rdap+json"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "1970-01-01T00:00:00Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-09-22T08:15:56Z"
}
],
"rdapConformance": [
"geofeed1",
"rirSearch1",
"ips",
"cidr0",
"rdap_level_0",
"nro_rdap_profile_0",
"redacted"
],
"notices": [
{
"title": "Filtered",
"description": [
"This output has been filtered."
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit:"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "inaccuracy-report",
"href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
"type": "text/html"
}
]
},
{
"title": "Source",
"description": [
"Objects returned came from source",
"RIPE"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the RIPE Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/138.40.0.0",
"rel": "terms-of-service",
"href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
"type": "application/pdf"
}
]
}
],
"port43": "whois.ripe.net",
"objectClassName": "ip network",
"redacted": [
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='EM11653-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-CUL15-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='CULA1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
} Contact details of private individuals are redacted.