ASN AS27595 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS27595?

AS27595 is listed under Columbia College Chicago.

What do peers, upstreams, and downstreams mean in ASN data?

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 shown for an ASN?

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

How can I access the full ASN tables?

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AS27595 Columbia College Chicago

ASN Lookup Tool

Columbia College Chicago colum.edu

US 2 Routes

AS Data

AS27595

AS27595 – Columbia College Chicago

AS Number	27595
AS Name	COLUM-600
Organization	Columbia College Chicago (colum-70)
Country	US
Website	colum.edu
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2011-03-09

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Use ASN data for AS27595 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.168.232.0/22	AS27595	Columbia College Chicago	Columbia College Chicago	1024
199.168.236.0/22	AS27595	Columbia College Chicago	Columbia College Chicago	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:       27595
ASName:         COLUM-600
ASHandle:       AS27595
RegDate:        2011-03-09
Updated:        2014-05-14
Ref:            https://rdap.arin.net/registry/autnum/27595


OrgName:        Columbia College Chicago
OrgId:          COLUM-70
Address:        600 S. Michigan Ave.
City:           Chicago
StateProv:      IL
PostalCode:     60605
Country:        US
RegDate:        2010-03-08
Updated:        2026-07-07
Ref:            https://rdap.arin.net/registry/entity/COLUM-70


OrgAbuseHandle: RUIZR9-ARIN
OrgAbuseName:   Ruiz, Robert 
OrgAbusePhone:  +1-312-369-8857 
OrgAbuseEmail:  robruiz@colum.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RUIZR9-ARIN

OrgDNSHandle: RUIZR9-ARIN
OrgDNSName:   Ruiz, Robert 
OrgDNSPhone:  +1-312-369-8857 
OrgDNSEmail:  robruiz@colum.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/RUIZR9-ARIN

OrgRoutingHandle: RUIZR9-ARIN
OrgRoutingName:   Ruiz, Robert 
OrgRoutingPhone:  +1-312-369-8857 
OrgRoutingEmail:  robruiz@colum.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/RUIZR9-ARIN

OrgNOCHandle: DUHRM-ARIN
OrgNOCName:   Duhr, Mike 
OrgNOCPhone:  +1-312-369-7879 
OrgNOCEmail:  mduhr@colum.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/DUHRM-ARIN

OrgTechHandle: DUHRM-ARIN
OrgTechName:   Duhr, Mike 
OrgTechPhone:  +1-312-369-7879 
OrgTechEmail:  mduhr@colum.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/DUHRM-ARIN

OrgAbuseHandle: DUHRM-ARIN
OrgAbuseName:   Duhr, Mike 
OrgAbusePhone:  +1-312-369-7879 
OrgAbuseEmail:  mduhr@colum.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DUHRM-ARIN

OrgNOCHandle: RUIZR9-ARIN
OrgNOCName:   Ruiz, Robert 
OrgNOCPhone:  +1-312-369-8857 
OrgNOCEmail:  robruiz@colum.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/RUIZR9-ARIN

OrgDNSHandle: DUHRM-ARIN
OrgDNSName:   Duhr, Mike 
OrgDNSPhone:  +1-312-369-7879 
OrgDNSEmail:  mduhr@colum.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/DUHRM-ARIN

OrgRoutingHandle: DUHRM-ARIN
OrgRoutingName:   Duhr, Mike 
OrgRoutingPhone:  +1-312-369-7879 
OrgRoutingEmail:  mduhr@colum.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DUHRM-ARIN

OrgTechHandle: RUIZR9-ARIN
OrgTechName:   Ruiz, Robert 
OrgTechPhone:  +1-312-369-8857 
OrgTechEmail:  robruiz@colum.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/RUIZR9-ARIN

RAbuseHandle: DGAMA-ARIN
RAbuseName:   D'Gama, Derrick 
RAbusePhone:  +1-312-369-7110 
RAbuseEmail:  ddgama@colum.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/DGAMA-ARIN

RTechHandle: DGAMA-ARIN
RTechName:   D'Gama, Derrick 
RTechPhone:  +1-312-369-7110 
RTechEmail:  ddgama@colum.edu
RTechRef:    https://rdap.arin.net/registry/entity/DGAMA-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" : "27595",
    "as_handle" : "AS27595",
    "as_name" : "COLUM-600",
    "admin_contacts" : [ "RUIZR9-ARIN", "DUHRM-ARIN" ],
    "tech_contacts" : [ "RUIZR9-ARIN", "DUHRM-ARIN", "DUHRM-ARIN", "RUIZR9-ARIN", "DGAMA-ARIN" ],
    "abuse_contacts" : [ "RUIZR9-ARIN", "DUHRM-ARIN", "DGAMA-ARIN" ],
    "date_created" : "2011-03-09",
    "date_updated" : "2014-05-14",
    "source" : "https://rdap.arin.net/registry/autnum/27595"
  } ],
  "organization" : {
    "handle" : "COLUM-70",
    "name" : "Columbia College Chicago",
    "address" : [ "600 S. Michigan Ave.", "Chicago", "IL", "60605", "US" ],
    "street" : "S. Michigan Ave.",
    "city" : "Chicago",
    "state" : "IL",
    "zip_code" : "60605",
    "country" : [ "US" ],
    "date_created" : "2010-03-08",
    "date_updated" : "2026-07-07",
    "source" : "https://rdap.arin.net/registry/entity/COLUM-70",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "RUIZR9-ARIN",
    "name" : "Ruiz, Robert",
    "email" : [ "robruiz@colum.edu" ],
    "phone" : [ "+1-312-369-8857" ],
    "source" : "https://rdap.arin.net/registry/entity/RUIZR9-ARIN"
  }, {
    "handle" : "DUHRM-ARIN",
    "name" : "Duhr, Mike",
    "email" : [ "mduhr@colum.edu" ],
    "phone" : [ "+1-312-369-7879" ],
    "source" : "https://rdap.arin.net/registry/entity/DUHRM-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "RUIZR9-ARIN",
    "name" : "Ruiz, Robert",
    "email" : [ "robruiz@colum.edu" ],
    "phone" : [ "+1-312-369-8857" ],
    "source" : "https://rdap.arin.net/registry/entity/RUIZR9-ARIN"
  }, {
    "handle" : "DUHRM-ARIN",
    "name" : "Duhr, Mike",
    "email" : [ "mduhr@colum.edu" ],
    "phone" : [ "+1-312-369-7879" ],
    "source" : "https://rdap.arin.net/registry/entity/DUHRM-ARIN"
  }, {
    "handle" : "DGAMA-ARIN",
    "name" : "D'Gama, Derrick",
    "email" : [ "ddgama@colum.edu" ],
    "phone" : [ "+1-312-369-7110" ],
    "source" : "https://rdap.arin.net/registry/entity/DGAMA-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "RUIZR9-ARIN",
    "name" : "Ruiz, Robert",
    "email" : [ "robruiz@colum.edu" ],
    "phone" : [ "+1-312-369-8857" ],
    "source" : "https://rdap.arin.net/registry/entity/RUIZR9-ARIN"
  }, {
    "handle" : "DUHRM-ARIN",
    "name" : "Duhr, Mike",
    "email" : [ "mduhr@colum.edu" ],
    "phone" : [ "+1-312-369-7879" ],
    "source" : "https://rdap.arin.net/registry/entity/DUHRM-ARIN"
  }, {
    "handle" : "DGAMA-ARIN",
    "name" : "D'Gama, Derrick",
    "email" : [ "ddgama@colum.edu" ],
    "phone" : [ "+1-312-369-7110" ],
    "source" : "https://rdap.arin.net/registry/entity/DGAMA-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS6079	RCN	US
AS25645	Momentum Telecom, Inc.	US

Upstreams

AS Number	Description	Country
AS6079	RCN	US
AS25645	Momentum Telecom, Inc.	US