131.156.0.28
Education
Data retrieved at
Network
ASN
IP Range
Company
Northern Illinois University
Network
NIU-NET
Using networksdb.io for network lookups.
Hostname
Not available.
Type
Education
Handle
NET-131-156-0-0-1
Registered
1988-12-05
Last Changed
2010-10-14
View raw RDAP
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "131.156.0.0",
"length": 16
}
],
"endAddress": "131.156.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-13T09:08:42-05:00"
},
{
"eventAction": "registration",
"eventDate": "2009-04-03T09:24:04-04:00"
}
],
"handle": "NAI5-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NAI5-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
},
{
"href": "https://whois.arin.net/rest/poc/NAI5-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "Northern Illinois University\nDivision of Information Technology\nDeKalb\nIL\n60115\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"NIU Abuse Investigation"
],
[
"org",
{},
"text",
"Northern Illinois University"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-815-753-1274"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-815-753-2215"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-815-753-8100"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-22T08:45:37-04:00"
},
{
"eventAction": "registration",
"eventDate": "2009-04-22T10:18:13-04:00"
}
],
"handle": "NETWO3080-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO3080-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO3080-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "Information Technology Services\nDeKalb\nIL\n60115\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Engineering"
],
[
"org",
{},
"text",
"Northern Illinois University"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-815-753-8100"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2019-10-21T12:57:18-04:00"
},
{
"eventAction": "registration",
"eventDate": "1988-12-05T00:00:00-05:00"
}
],
"handle": "NIU-1",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NIU-1",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
},
{
"href": "https://whois.arin.net/rest/org/NIU-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"http://www.niu.edu\r",
"NOC 24x7x365 \r",
"Phone: 815-753-8100"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Northern Illinois University"
],
[
"adr",
{
"label": "Division of Information Technology\nDeKalb\nIL\n60115\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2010-10-14T17:21:51-04:00"
},
{
"eventAction": "registration",
"eventDate": "1988-12-05T00:00:00-05:00"
}
],
"handle": "NET-131-156-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/131.156.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
},
{
"href": "https://whois.arin.net/rest/net/NET-131-156-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
}
],
"name": "NIU-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/131.156.0.28"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/131.156.0.28"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-131-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "131.156.0.0",
"status": [
"active"
],
"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
131.156.0.0/16
Authorized ASN
Not available.
Abuse Contacts
IP Geolocation
Country
United States
City
West Chicago (📍 60185)
Illinois
Time Zone
America/Chicago
Coordinates
41.8879, -88.1998
Continent
North America
European Union
No.
Phone prefix
+1
Currency
US Dollar (USD $)