129.16.0.38
Education
Data retrieved at
Network
ASN
IP Range
Company
Chalmers University of Technology AB
Registrant
CHALMERS-MNT
CTH-NET
Using networksdb.io for network lookups.
Hostname
Not available.
AS Domain
chalmers.se
Using host.io for pre-visualize domains.
Type
Education
Handle
129.16.0.0 - 129.16.255.255
Registered
1970-01-01
Last Changed
2026-07-03
View raw RDAP
{
"handle": "129.16.0.0 - 129.16.255.255",
"startAddress": "129.16.0.0",
"endAddress": "129.16.255.255",
"ipVersion": "v4",
"name": "CTH-NET",
"type": "LEGACY",
"country": "SE",
"parentHandle": "0.0.0.0 - 255.255.255.255",
"cidr0_cidrs": [
{
"v4prefix": "129.16.0.0",
"length": 16
}
],
"status": [
"active"
],
"entities": [
{
"handle": "CHALMERS-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CHALMERS-MNT"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/CHALMERS-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": "CTH2-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CHALMERS NIC"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Chalmers University of Technology\nIT Office, IT Infrastructure\nSE-412 96 Goteborg\nSWEDEN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+46 31 772 66 00"
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/CTH2-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": "ORG-CUoT1-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Chalmers University of Technology AB"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Chalmersplatsen 4\nGothenburg\nSE-412 96\nSE"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-CUoT1-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",
"RIPE-NCC-LEGACY-MNT"
],
[
"kind",
{},
"text",
"individual"
],
[
"org",
{},
"text",
"ORG-NCC1-RIPE"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"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": "SUNET-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"SUNET-MNT"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/SUNET-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": "CTH2-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CHALMERS NIC"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Chalmers University of Technology\nIT Office, IT Infrastructure\nSE-412 96 Goteborg\nSWEDEN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+46 31 772 66 00"
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"abuse"
],
"entities": [
{
"handle": "CHALMERS-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CHALMERS-MNT"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/CHALMERS-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": "KR427-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Kejvan Redjamand"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Chalmers University of Technology\nComputer Communications Group\nS-412 96 Goteborg\nSWEDEN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+46 31 772 5919"
],
[
"tel",
{
"type": "fax"
},
"text",
"+46 31 772 8660"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/KR427-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": "MB56999-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Martin Burman"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Chalmers University of Technology\nIT-Office\nS-412 96 Goteborg\nSWEDEN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+46 31 772 24 33"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/MB56999-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": "PA1009-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Per Andersson"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Chalmers University of Technology\nIT-Office\nS-412 96 Goteborg\nSWEDEN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+46 31 772 1781"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/PA1009-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": "PF9131-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Petter Froling"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Chalmers University of Technology\nIT-Office\nS-412 96 Goteborg\nSWEDEN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+46 31 772 65 10"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/PF9131-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": "TW4830-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Toni Wissmach"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Chalmers University of Technology\nIT-Office\nS-412 96 Goteborg\nSWEDEN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+46 31 772 66 09"
]
]
],
"roles": [
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/TW4830-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": [
"Chalmers University Network",
"Chalmers University of Technology",
"Gothenburg, Sweden",
"************************************************************",
"* Abuse contact: [email protected] In case of hack attacks,*",
"* illegal activity, violation, scans, probes, spam, etc. *"
]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/129.16.0.0%20-%20129.16.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/129.16.0.0%20-%20129.16.255.255?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-down/129.16.0.0%20-%20129.16.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/129.16.0.0%20-%20129.16.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/129.16.0.0%20-%20129.16.255.255?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-bottom/129.16.0.0%20-%20129.16.255.255",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/ip/129.16.0.38",
"rel": "self",
"href": "https://rdap.db.ripe.net/ip/129.16.0.38",
"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": "2026-07-03T14:06:20Z"
}
],
"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/129.16.0.38",
"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/129.16.0.38",
"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": "$.entities[?(@.handle=='CTH2-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-CUoT1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='CTH2-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
129.16.0.0/16
Authorized ASN
Not available.
Abuse Contacts
IP Geolocation
Country
Sweden
City
Gothenburg (📍 400 10)
Västra Götaland County
Time Zone
Europe/Stockholm
Coordinates
57.7065, 11.967
Continent
Europe
European Union
Yes.
Phone prefix
+46
Currency
Swedish Krona (SEK kr)