131.174.0.21
Education
Data retrieved at
Network
ASN
IP Range
Company
SURF B.V.
Registrant
Radboud Universiteit Nijmegen
RU-NET
Using networksdb.io for network lookups.
Hostname
Not available.
Type
Education
Handle
131.174.0.0 - 131.174.255.255
Registered
1970-01-01
Last Changed
2026-06-29
View raw RDAP
{
"handle": "131.174.0.0 - 131.174.255.255",
"startAddress": "131.174.0.0",
"endAddress": "131.174.255.255",
"ipVersion": "v4",
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"type": "LEGACY",
"country": "NL",
"parentHandle": "0.0.0.0 - 255.255.255.255",
"cidr0_cidrs": [
{
"v4prefix": "131.174.0.0",
"length": 16
}
],
"status": [
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{
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"vcardArray": [
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{},
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[
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{},
"text",
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[
"kind",
{},
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[
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{
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"text",
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]
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{
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{
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"rel": "copyright",
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],
"objectClassName": "entity"
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{
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[
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{
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{
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{
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},
{
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"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "IIRU1-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"ISC IT-services Radboud University"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Geert Grooteplein 41\nNL 6525 GA\nNijmegen\nNetherlands"
},
"text",
[
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""
]
],
[
"tel",
{
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},
"text",
"+31 2436 17959"
],
[
"email",
{
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},
"text",
"[email protected]"
]
]
],
"roles": [
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],
"entities": [
{
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"SN-LIR-MNT"
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],
"roles": [
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"links": [
{
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"href": "https://rdap.db.ripe.net/entity/SN-LIR-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"
}
],
"objectClassName": "entity"
}
],
"remarks": [
{
"description": [
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]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/131.174.0.21",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/131.174.0.0%20-%20131.174.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/131.174.0.21",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/131.174.0.0%20-%20131.174.255.255?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/131.174.0.21",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-down/131.174.0.0%20-%20131.174.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/131.174.0.21",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/131.174.0.0%20-%20131.174.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/131.174.0.21",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/131.174.0.0%20-%20131.174.255.255?status=active",
"type": "application/rdap+json"
},
{
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"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-bottom/131.174.0.0%20-%20131.174.255.255",
"type": "application/rdap+json"
},
{
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"rel": "self",
"href": "https://rdap.db.ripe.net/ip/131.174.0.21",
"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": "2026-06-29T23:04:14Z"
}
],
"rdapConformance": [
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"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/131.174.0.21",
"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": [
{
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"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": "$.entities[?(@.handle=='EA13782-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
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},
"reason": {
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},
"prePath": "$.entities[?(@.handle=='irt-SURFcert')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
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},
"reason": {
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},
"prePath": "$.entities[?(@.handle=='ORG-RU11-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='IIRU1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
}
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
131.174.0.0/16
Authorized ASN
Not available.
Abuse Contacts
IP Geolocation
Country
The Netherlands
City
Nijmegen (📍 6533)
Gelderland
Time Zone
Europe/Amsterdam
Coordinates
51.816, 5.8571
Continent
Europe
European Union
Yes.
Phone prefix
+31
Currency
Euro (EUR €)