% 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:       208.93.72.0 - 208.93.79.255
CIDR:           208.93.72.0/21
NetName:        RIM-CORP-03
NetHandle:      NET-208-93-72-0-1
Parent:         NET208 (NET-208-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   BlackBerry Corporation (RESEA-15)
RegDate:        2008-07-28
Updated:        2022-03-10
Comment:        -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref:            https://rdap.arin.net/registry/ip/208.93.72.0

OrgName:        BlackBerry Corporation
OrgId:          RESEA-15
Address:        5030 Riverside Drive
Address:        Building 2, Suite 200
City:           Irving
StateProv:      TX
PostalCode:     75039
Country:        US
RegDate:        2008-12-23
Updated:        2024-04-22
Ref:            https://rdap.arin.net/registry/entity/RESEA-15

OrgAbuseHandle: ABUSE1462-ARIN
OrgAbuseName:   Abuse Complaints
OrgAbusePhone:  +1-519-888-7465 
OrgAbuseEmail:  abuse@blackberry.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE1462-ARIN

OrgNOCHandle: BNA54-ARIN
OrgNOCName:   BlackBerry Network Analysts
OrgNOCPhone:  +1-519-597-5580 
OrgNOCEmail:  BBGlobalNOC@blackberry.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/BNA54-ARIN

OrgTechHandle: IPADM262-ARIN
OrgTechName:   IP Admin
OrgTechPhone:  +1-519-888-7465 
OrgTechEmail:  ipadmin@blackberry.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADM262-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.
#