% APNIC found the following authoritative answer from: whois.arin.net

#
# 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 1997-2024, American Registry for Internet Numbers, Ltd.
#

NetRange:       157.191.0.0 - 157.191.255.255
CIDR:           157.191.0.0/16
NetName:        MCKINSEY-AM
NetHandle:      NET-157-191-0-0-1
Parent:         NET157 (NET-157-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   McKinsey & Company, Inc. (MCKINS-Z)
RegDate:        1992-03-24
Updated:        2023-08-23
Ref:            https://rdap.arin.net/registry/ip/157.191.0.0

OrgName:        McKinsey & Company, Inc.
OrgId:          MCKINS-Z
Address:        711 3rd Ave
City:           New York
StateProv:      NY
PostalCode:     10017
Country:        US
RegDate:        2023-08-21
Updated:        2023-08-21
Ref:            https://rdap.arin.net/registry/entity/MCKINS-Z

OrgNOCHandle: SMIRN32-ARIN
OrgNOCName:   Smirnov, Evgeny 
OrgNOCPhone:  +420725773264 
OrgNOCEmail:  evgeny_smirnov@mckinsey.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SMIRN32-ARIN

OrgTechHandle: SMIRN32-ARIN
OrgTechName:   Smirnov, Evgeny 
OrgTechPhone:  +420725773264 
OrgTechEmail:  evgeny_smirnov@mckinsey.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SMIRN32-ARIN

OrgTechHandle: SUKHI1-ARIN
OrgTechName:   Sukhija, Ashish 
OrgTechPhone:  +1-437-341-2447 
OrgTechEmail:  ashish_sukhija@mckinsey.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SUKHI1-ARIN

OrgTechHandle: MM2435-ARIN
OrgTechName:   Martin, Michael 
OrgTechPhone:  +1-212-415-5217 
OrgTechEmail:  Michael.Martin@mckinsey.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MM2435-ARIN

OrgAbuseHandle: SMIRN32-ARIN
OrgAbuseName:   Smirnov, Evgeny 
OrgAbusePhone:  +420725773264 
OrgAbuseEmail:  evgeny_smirnov@mckinsey.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SMIRN32-ARIN

RAbuseHandle: SMIRN32-ARIN
RAbuseName:   Smirnov, Evgeny 
RAbusePhone:  +420725773264 
RAbuseEmail:  evgeny_smirnov@mckinsey.com
RAbuseRef:    https://rdap.arin.net/registry/entity/SMIRN32-ARIN

RTechHandle: ZM161-ARIN
RTechName:   Hostmaster
RTechPhone:  +1-212-415-1593 
RTechEmail:  hostmaster@mckinsey.com
RTechRef:    https://rdap.arin.net/registry/entity/ZM161-ARIN

RTechHandle: SMIRN32-ARIN
RTechName:   Smirnov, Evgeny 
RTechPhone:  +420725773264 
RTechEmail:  evgeny_smirnov@mckinsey.com
RTechRef:    https://rdap.arin.net/registry/entity/SMIRN32-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 1997-2024, American Registry for Internet Numbers, Ltd.
#

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