Free network tools
AS WHOIS
Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
Network Report (All-in-one) BGP Looking Glass BGP Security Check RPKI Validator BGP Hijack & Leak Monitor ASN Intelligence Internet Outages & Anomalies Country Internet Report Domain Insights IP WHOIS AS WHOIS
AS22335
MREN - Metropolitan Research and Education Network Announcing routesAS nameMREN
OrganisationMetropolitan Research and Education Network
Registry (RIR)ARIN
HandleAS22335
RangeAS22335
Registered12 Sep 2001
Last changed29 Jul 2020
Abuse contact[email protected]
1IPv4 prefixes
0IPv6 prefixes
3Upstreams
19Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS11164 | INTERNET2-I2PX - Internet2 | 519 |
| AS11537 | INTERNET2-RESEARCH-EDU - Internet2 | 217 |
| AS293 | ESNET - ESnet | 18 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS6325 | ILLINOIS-CENTURY - Illinois Century Network | 193 |
| AS6200 | UIC-AS - University of Illinois Chicago | 86 |
| AS53695 | SIUE - Southern Illinois University at Edwardsville | 79 |
| AS15119 | SOUTHERN-ILLINOIS-UNIVERSITY - Southern Illinois University Carbondale | 63 |
| AS18555 | THE-ART-INST - The Art Institute of Chicago | 54 |
| AS1224 | NCSA-AS - University of Illinois | 37 |
| AS20130 | DEPAUL - Depaul University | 29 |
| AS683 | ARGONNE-AS - Argonne National Laboratory | 20 |
| AS7968 | LOYOLA-UNIV-CHICAGO - Loyola University Chicago | 19 |
| AS103 | NWU-AS - Northwestern University | 16 |
| AS31770 | CMMC-I2 - Ann & Robert H. Lurie Children's Hospital of Chicago | 12 |
| AS40387 | UI-ICCN - University of Illinois | 12 |
| AS7386 | ILLINOIS-STATE-UNIV - Illinois State University | 11 |
| AS29825 | IIT-NETWORK-AS - Illinois Institute of Technology | 8 |
| AS26367 | BRADLEY-UNIVERSITY - Bradley University | 4 |
IPv4 prefixes (1)
RPKI-validate all prefixes of AS22335
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Metropolitan Research and Education Network | MREN-2 | 750 North Lake Shore Drive, Suite 600, Chicago, IL, 60611, United States | |
| technical, abuse, administrative | Linda Winkler | LW26-ARIN | [email protected], +1-630-252-7236 | 9700 South Cass Avenue, Lemont, IL, 60439, United States |
Raw registry response
{
"endAutnum": 22335,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-15T08:36:34-04:00"
}
],
"handle": "LW26-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/LW26-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/22335"
},
{
"href": "https://whois.arin.net/rest/poc/LW26-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/22335"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "9700 South Cass Avenue\nLemont\nIL\n60439\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Linda Winkler"
],
[
"n",
[],
"text",
[
"Winkler",
"Linda",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-630-252-7236"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2011-09-24T08:30:57-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-09-12T00:00:00-04:00"
}
],
"handle": "MREN-2",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MREN-2",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/22335"
},
{
"href": "https://whois.arin.net/rest/org/MREN-2",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/22335"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Metropolitan Research and Education Network"
],
[
"adr",
{
"label": "750 North Lake Shore Drive, Suite 600\nChicago\nIL\n60611\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2020-07-28T14:58:38-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-09-12T00:00:00-04:00"
}
],
"handle": "AS22335",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/22335",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/22335"
},
{
"href": "https://whois.arin.net/rest/asn/AS22335",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/22335"
}
],
"name": "MREN",
"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/autnum/22335"
}
],
"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/autnum/22335"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 22335,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.
