AS62523 Cable/DSL/ISP
CIRBN-LLC
CIRBN, LLC
US
18
IPv4 Prefixes
0
IPv6 Prefixes
0
peering network
1
IX Points
2
Facilities
AS Name
CIRBN-LLC
Organization
CIRBN, LLC
Country/Region
US
Registration Date
2013-06-21
Update Date
2013-06-21
View Whois
IPv4 Prefixes (18)
216.125.243.0/24 76.78.250.0/24 216.125.236.0/24 216.125.237.0/24 216.125.244.0/23 64.150.64.0/24 216.125.238.0/24 216.125.239.0/24 107.152.0.0/20 216.124.156.0/22 199.38.32.0/20 158.222.16.0/22 216.125.246.0/24 158.222.20.0/24 158.222.21.0/24 38.89.244.0/22 158.222.22.0/24 162.222.8.0/21
AS62523 network topology (Upstream/Downstream)
Facility List (2)
Name City Country
Equinix CH1/CH2/CH4 - Chicago Chicago US
Northwestern University co-location facility Chicago US
Colocated Networks (Shared Data Center)
ASN Name Type Shared Facility
AS40387 University of Illinois/ICCN Educational/Research 2/2
AS11537 UCAID Educational/Research 2/2
AS2381 WiscNet Educational/Research 2/2
AS668 DREN Educational/Research 2/2
AS293 Energy Sciences Network (ESnet) NSP 2/2
AS237 Merit Network Educational/Research 2/2
AS402062 AUTOMATION EXCHANGE 1/2
AS401688 Latency Logic NSP 1/2
AS400958 Syniac Enterprise 1/2
AS400529 Infraly, LLC Content 1/2
AS400318 Versa Networks Content 1/2
AS400304 Crunchbits Content 1/2
AS399647 Rumble 1/2
AS399503 AMERICOM NETWORKS Cable/DSL/ISP 1/2
AS399332 J2 Technology Network Services 1/2
AS399011 C3Aero Enterprise 1/2
AS398900 RENCI-FABRIC 1/2
AS398465 Rackdog Cable/DSL/ISP 1/2
AS398223 Pomona Consulting AS398223 1/2
AS398143 Truestream NSP 1/2
+10 colocated networks
Raw Whois Data 

--- ARIN Whois ---


#
# 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:       62523
ASName:         CIRBN-LLC
ASHandle:       AS62523
RegDate:        2013-06-21
Updated:        2013-06-21
Ref:            https://rdap.arin.net/registry/autnum/62523


OrgName:        CIRBN, LLC
OrgId:          CL-214
Address:        200 W Front Street
Address:        Suite 500A
City:           Bloomington
StateProv:      IL
PostalCode:     61701
Country:        US
RegDate:        2013-04-08
Updated:        2022-01-04
Ref:            https://rdap.arin.net/registry/entity/CL-214


OrgNOCHandle: CTS22-ARIN
OrgNOCName:   CIRBN Technical Staff
OrgNOCPhone:  +1-309-820-7321 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/CTS22-ARIN

OrgAbuseHandle: CAC86-ARIN
OrgAbuseName:   CIRBN Abuse Contact
OrgAbusePhone:  +1-309-820-7321 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CAC86-ARIN

OrgNOCHandle: DLB152-ARIN
OrgNOCName:   Barker, Derek L
OrgNOCPhone:  +1-309-605-0102 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/DLB152-ARIN

OrgTechHandle: DLB152-ARIN
OrgTechName:   Barker, Derek L
OrgTechPhone:  +1-309-605-0102 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/DLB152-ARIN

OrgAbuseHandle: DLB152-ARIN
OrgAbuseName:   Barker, Derek L
OrgAbusePhone:  +1-309-605-0102 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DLB152-ARIN

OrgTechHandle: CTS22-ARIN
OrgTechName:   CIRBN Technical Staff
OrgTechPhone:  +1-309-820-7321 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/CTS22-ARIN

OrgDNSHandle: CTS22-ARIN
OrgDNSName:   CIRBN Technical Staff
OrgDNSPhone:  +1-309-820-7321 
OrgDNSEmail:  [email protected]
OrgDNSRef:    https://rdap.arin.net/registry/entity/CTS22-ARIN

OrgRoutingHandle: DLB152-ARIN
OrgRoutingName:   Barker, Derek L
OrgRoutingPhone:  +1-309-605-0102 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DLB152-ARIN

OrgDNSHandle: DLB152-ARIN
OrgDNSName:   Barker, Derek L
OrgDNSPhone:  +1-309-605-0102 
OrgDNSEmail:  [email protected]
OrgDNSRef:    https://rdap.arin.net/registry/entity/DLB152-ARIN

OrgRoutingHandle: CTS22-ARIN
OrgRoutingName:   CIRBN Technical Staff
OrgRoutingPhone:  +1-309-820-7321 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/CTS22-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.
#

Related Tools

Whois
View registration & expiry info