% 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 1997-2026, American Registry for Internet Numbers, Ltd.
#

NetRange:       129.176.0.0 - 129.176.255.255
CIDR:           129.176.0.0/16
NetName:        MAYO
NetHandle:      NET-129-176-0-0-1
Parent:         NET129 (NET-129-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Mayo Foundation for Medical Education and Research (MAYOFO-Z)
RegDate:        1988-03-03
Updated:        2026-08-21
Comment:        -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref:            https://rdap.arin.net/registry/ip/129.176.0.0

OrgName:        Mayo Foundation for Medical Education and Research
OrgId:          MAYOFO-Z
Address:        200 First Street Southwest
City:           Rochester
StateProv:      MN
PostalCode:     55905
Country:        US
RegDate:        2023-11-15
Updated:        2023-11-15
Ref:            https://rdap.arin.net/registry/entity/MAYOFO-Z

OrgNOCHandle: NOC3062-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-507-266-2139 
OrgNOCEmail:  noc@mayo.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC3062-ARIN

OrgAbuseHandle: TARC-ARIN
OrgAbuseName:   TARC
OrgAbusePhone:  +1-507-284-1212 
OrgAbuseEmail:  csoc@mayo.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TARC-ARIN

OrgTechHandle: NOC3062-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-507-266-2139 
OrgTechEmail:  noc@mayo.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC3062-ARIN

RTechHandle: DAVID444-ARIN
RTechName:   David Rahman
RTechPhone:  +1-507-284-2092 
RTechEmail:  drahman@mayo.edu
RTechRef:    https://rdap.arin.net/registry/entity/DAVID444-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.
#