ASN Lookup Tool

AS19977
Mayer Brown LLP mayerbrown.com US US 10 Routes

AS19977Mayer Brown LLP

AS Number 19977
AS Name MBRML-AS
Organization Mayer Brown LLP(mbrml)
Country US
Website mayerbrown.com
Number of IPv4 Routes 10
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2016-08-02T00:00

IP Ranges

Route # IPs
143.58.0.0/22 1024
143.58.7.0/24 256
143.58.6.0/24 256
143.58.5.0/24 256
143.58.0.0/24 256
143.58.3.0/24 256
143.58.2.0/24 256
143.58.1.0/24 256
143.58.4.0/22 1024
143.58.4.0/24 256

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:       19977
ASName:         MBRML-AS
ASHandle:       AS19977
RegDate:        2016-08-02
Updated:        2016-08-02    
Ref:            https:/​/​rdap.arin.net/​registry/​autnum/​19977


OrgName:        Mayer Brown LLP
OrgId:          MBRML
Address:        71 S. Wacker
City:           Chicago
StateProv:      IL
PostalCode:     60606
Country:        US
RegDate:        2006-01-12
Updated:        2016-07-12
Ref:            https:/​/​rdap.arin.net/​registry/​entity/​MBRML


OrgAbuseHandle: MCS7-ARIN
OrgAbuseName:   Sherman, Michael C
OrgAbusePhone:  +1-312-701-8315 
OrgAbuseEmail:  msherman@mayerbrown.com
OrgAbuseRef:    https:/​/​rdap.arin.net/​registry/​entity/​MCS7-ARIN

OrgTechHandle: MCS7-ARIN
OrgTechName:   Sherman, Michael C
OrgTechPhone:  +1-312-701-8315 
OrgTechEmail:  msherman@mayerbrown.com
OrgTechRef:    https:/​/​rdap.arin.net/​registry/​entity/​MCS7-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

Peers

AS Number Description Country
AS3356 Level 3 Parent, LLC US
AS174 Cogent Communications, LLC US

Upstreams

AS Number Description Country
AS3356 Level 3 Parent, LLC US
AS174 Cogent Communications, LLC US

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