145.162.0.23
ISP
Data retrieved at
Network
ASN
Not available
Company
Not available.
Hostname
145.162.EARLY-REGISTRATION.of.SURFnet.invalid
AS Domain
Not available
Type
ISP
Handle
145.134.0.0 - 145.175.255.255
Registered
2026-08-05
Last Changed
2026-09-24
View raw RDAP
{
"handle": "145.134.0.0 - 145.175.255.255",
"startAddress": "145.134.0.0",
"endAddress": "145.175.255.255",
"ipVersion": "v4",
"name": "SURF-PARENT-BLOCK-II",
"type": "LEGACY",
"country": "NL",
"parentHandle": "0.0.0.0 - 255.255.255.255",
"cidr0_cidrs": [
{
"v4prefix": "145.134.0.0",
"length": 15
},
{
"v4prefix": "145.136.0.0",
"length": 13
},
{
"v4prefix": "145.144.0.0",
"length": 12
},
{
"v4prefix": "145.160.0.0",
"length": 12
}
],
"status": [
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],
"entities": [
{
"handle": "irt-SURFcert",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-SURFcert"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "SURF bv\nattn. SURFcert\nP.O.Box 19035\nNL-3501 DA\nUtrecht\nNetherlands"
},
"text",
[
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""
]
],
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{
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]
]
],
"roles": [
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],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/irt-SURFcert"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"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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{
"label": "P.O. Box 19035\n3501 DA\nUtrecht\nNETHERLANDS"
},
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[
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]
]
],
"roles": [
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"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-Sb3-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",
[
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"version",
{},
"text",
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],
[
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{},
"text",
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],
[
"kind",
{},
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],
[
"org",
{},
"text",
"ORG-NCC1-RIPE"
]
]
],
"roles": [
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],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"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": "SN-LIR-MNT",
"vcardArray": [
"vcard",
[
[
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{},
"text",
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],
[
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{},
"text",
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],
[
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{},
"text",
"individual"
]
]
],
"roles": [
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],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"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"
},
{
"handle": "SNS1-RIPE",
"vcardArray": [
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[
[
"version",
{},
"text",
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],
[
"fn",
{},
"text",
"SURF Network Maintainer"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Kantoren Hoog Overborch (Hoog Catharijne)\nMoreelsepark 48, 3511 EP Utrecht\nPostbus 19035, 3501 DA Utrecht"
},
"text",
[
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""
]
],
[
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{
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"text",
"+31 88 7873000"
],
[
"email",
{
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"[email protected]"
]
]
],
"roles": [
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"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/SNS1-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": "SNS1-RIPE",
"vcardArray": [
"vcard",
[
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"version",
{},
"text",
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[
"fn",
{},
"text",
"SURF Network Maintainer"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Kantoren Hoog Overborch (Hoog Catharijne)\nMoreelsepark 48, 3511 EP Utrecht\nPostbus 19035, 3501 DA Utrecht"
},
"text",
[
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""
]
],
[
"tel",
{
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},
"text",
"+31 88 7873000"
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
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"entities": [
{
"handle": "AS1103-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"AS1103-MNT"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/AS1103-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": "BW4086-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Bram Wittendorp"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "SURF B.V.\nP.O. Box 19035\n3501 DA Utrecht\nThe Netherlands"
},
"text",
[
"",
"",
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"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31 88 787 30 00"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/BW4086-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": "EV4604-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Edwin Verheul"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "SURF B.V.\nP.O. Box 19035\n3501 DA Utrecht\nThe Netherlands"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31 88 787 30 00"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/EV4604-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": "JO5863-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Joachim Opdenakker"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Heirbaan 11\n3650 Dilsen-Stokkem"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+32497802317"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/JO5863-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": "MK512-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Marijke Kaat"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "SURFnet bv\nP.O. Box 19035\nNL - 3501 DA Utrecht\nThe Netherlands"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31 30 2305305"
],
[
"tel",
{
"type": "fax"
},
"text",
"+31 30 2305329"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/MK512-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": "MM57501-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Max Mudde"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Moreelsepark 48, Utrecht"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31887873000"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/MM57501-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": "NO17-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Niels den Otter"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "SURF\nP.O. Box 19035\nNL - 3501 DA Utrecht\nThe Netherlands"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31 30 2305305"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/NO17-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": "WB311-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Wim Biemolt"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "SURF bv\nP.O. Box 19035\nNL - 3501 DA Utrecht\nThe Netherlands"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+31 88 7873000"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/WB311-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"
}
],
"objectClassName": "entity"
}
],
"remarks": [
{
"description": [
"SURF bv, Utrecht"
]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/145.134.0.0%20-%20145.175.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/145.134.0.0%20-%20145.175.255.255?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-down/145.134.0.0%20-%20145.175.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/145.134.0.0%20-%20145.175.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/145.134.0.0%20-%20145.175.255.255?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-bottom/145.134.0.0%20-%20145.175.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/145.162.0.23",
"rel": "self",
"href": "https://rdap.db.ripe.net/ip/145.162.0.23",
"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": "2026-08-05T09:13:43Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-09-24T06:56:36Z"
}
],
"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/145.162.0.23",
"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/145.162.0.23",
"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": "$.entities[?(@.handle=='irt-SURFcert')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-Sb3-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='SNS1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='SNS1-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
Not available
Authorized ASN
Not available
IP Geolocation
Country
NL
Time Zone
Not available
Continent
Not available
European Union
No
Phone prefix
Not available
Currency
Not available