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AS397367 Cranbrook Educational Community

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

Cranbrook Educational Community cranbrook.edu

US 2 Routes

AS Data

AS397367

AS397367 – Cranbrook Educational Community

AS Number	397367
AS Name	CRANBROOK-01
Organization	Cranbrook Educational Community (cec-1)
Country	US
Website	cranbrook.edu
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2019-03-07

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Use ASN data for AS397367 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.134.12.0/23	AS397367	Cranbrook Educational Community	Cranbrook Educational Community	512
198.134.8.0/22	AS397367	Cranbrook Educational Community	Cranbrook Educational Community	1024

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       397367
ASName:         CRANBROOK-01
ASHandle:       AS397367
RegDate:        2019-03-07
Updated:        2019-03-07
Comment:        www.cranbrook.edu
Comment:        NOC Hours 
Comment:        7:00AM to 5:00PM EST
Ref:            https://rdap.arin.net/registry/autnum/397367


OrgName:        Cranbrook Educational Community
OrgId:          CEC-1
Address:        522 Lone Pine Road
City:           Bloomfield Hills
StateProv:      MI
PostalCode:     48304
Country:        US
RegDate:        1993-04-01
Updated:        2022-02-15
Ref:            https://rdap.arin.net/registry/entity/CEC-1


OrgTechHandle: KLEIN350-ARIN
OrgTechName:   Klein, Jacob 
OrgTechPhone:  +1-248-645-3327 
OrgTechEmail:  abuse@cranbrook.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/KLEIN350-ARIN

OrgNOCHandle: KLEIN350-ARIN
OrgNOCName:   Klein, Jacob 
OrgNOCPhone:  +1-248-645-3327 
OrgNOCEmail:  abuse@cranbrook.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/KLEIN350-ARIN

OrgDNSHandle: KLEIN350-ARIN
OrgDNSName:   Klein, Jacob 
OrgDNSPhone:  +1-248-645-3327 
OrgDNSEmail:  abuse@cranbrook.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/KLEIN350-ARIN

OrgRoutingHandle: KLEIN350-ARIN
OrgRoutingName:   Klein, Jacob 
OrgRoutingPhone:  +1-248-645-3327 
OrgRoutingEmail:  abuse@cranbrook.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/KLEIN350-ARIN

OrgAbuseHandle: KLEIN350-ARIN
OrgAbuseName:   Klein, Jacob 
OrgAbusePhone:  +1-248-645-3327 
OrgAbuseEmail:  abuse@cranbrook.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/KLEIN350-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "397367",
    "as_handle" : "AS397367",
    "as_name" : "CRANBROOK-01",
    "admin_contacts" : [ "KLEIN350-ARIN" ],
    "tech_contacts" : [ "KLEIN350-ARIN", "KLEIN350-ARIN" ],
    "abuse_contacts" : [ "KLEIN350-ARIN" ],
    "date_created" : "2019-03-07",
    "date_updated" : "2019-03-07",
    "source" : "https://rdap.arin.net/registry/autnum/397367"
  } ],
  "organization" : {
    "handle" : "CEC-1",
    "name" : "Cranbrook Educational Community",
    "address" : [ "522 Lone Pine Road", "Bloomfield Hills", "MI", "48304", "US" ],
    "street" : "Lone Pine Road",
    "city" : "Bloomfield Hills",
    "state" : "MI",
    "zip_code" : "48304",
    "country" : [ "US" ],
    "date_created" : "1993-04-01",
    "date_updated" : "2022-02-15",
    "source" : "https://rdap.arin.net/registry/entity/CEC-1",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "KLEIN350-ARIN",
    "name" : "Klein, Jacob",
    "email" : [ "abuse@cranbrook.edu" ],
    "phone" : [ "+1-248-645-3327" ],
    "source" : "https://rdap.arin.net/registry/entity/KLEIN350-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "KLEIN350-ARIN",
    "name" : "Klein, Jacob",
    "email" : [ "abuse@cranbrook.edu" ],
    "phone" : [ "+1-248-645-3327" ],
    "source" : "https://rdap.arin.net/registry/entity/KLEIN350-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "KLEIN350-ARIN",
    "name" : "Klein, Jacob",
    "email" : [ "abuse@cranbrook.edu" ],
    "phone" : [ "+1-248-645-3327" ],
    "source" : "https://rdap.arin.net/registry/entity/KLEIN350-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS33668	Comcast Cable Communications, LLC	US

Upstreams

AS Number	Description	Country
AS33668	Comcast Cable Communications, LLC	US

Frequently Asked Questions

What is ASN AS397367?

ASN AS397367 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397367?

AS397367 is listed under Cranbrook Educational Community.

What do peers, upstreams, and downstreams mean?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.