% 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:       64.187.64.0 - 64.187.95.255
CIDR:           64.187.64.0/19
NetName:        KCI-NET
NetHandle:      NET-64-187-64-0-1
Parent:         NET64 (NET-64-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS16608
Organization:   Kentec Communications, Inc. (KENTEC)
RegDate:        2003-09-30
Updated:        2013-12-02
Ref:            https://rdap.arin.net/registry/ip/64.187.64.0

OrgName:        Kentec Communications, Inc.
OrgId:          KENTEC
Address:        710 West Main Street
City:           Sterling
StateProv:      CO
PostalCode:     80751
Country:        US
RegDate:        2000-02-12
Updated:        2022-09-09
Comment:        http://www.kci.net/
Comment:        Standard Hours 8am-5pm MST/MDT
Ref:            https://rdap.arin.net/registry/entity/KENTEC

OrgNOCHandle: KNO-ARIN
OrgNOCName:   Kentec Network Operations
OrgNOCPhone:  +1-970-522-8107 
OrgNOCEmail:  noc@kci.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/KNO-ARIN

OrgAbuseHandle: KENTE-ARIN
OrgAbuseName:   Kentec Abuse
OrgAbusePhone:  +1-970-522-8107 
OrgAbuseEmail:  abuse@kci.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/KENTE-ARIN

OrgTechHandle: DLO49-ARIN
OrgTechName:   Logan, Dave 
OrgTechPhone:  +1-970-522-8107 
OrgTechEmail:  davel@kci.net
OrgTechRef:    https://rdap.arin.net/registry/entity/DLO49-ARIN

RNOCHandle: KNO-ARIN
RNOCName:   Kentec Network Operations
RNOCPhone:  +1-970-522-8107 
RNOCEmail:  noc@kci.net
RNOCRef:    https://rdap.arin.net/registry/entity/KNO-ARIN

RTechHandle: DLO49-ARIN
RTechName:   Logan, Dave 
RTechPhone:  +1-970-522-8107 
RTechEmail:  davel@kci.net
RTechRef:    https://rdap.arin.net/registry/entity/DLO49-ARIN

RAbuseHandle: KENTE-ARIN
RAbuseName:   Kentec Abuse
RAbusePhone:  +1-970-522-8107 
RAbuseEmail:  abuse@kci.net
RAbuseRef:    https://rdap.arin.net/registry/entity/KENTE-ARIN

RTechHandle: JNO12-ARIN
RTechName:   NORELL, JESSE 
RTechPhone:  +1-970-521-9457 
RTechEmail:  jesse-arin@kci.net
RTechRef:    https://rdap.arin.net/registry/entity/JNO12-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.
#

Search for
IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		Query hints Include "AS" in front of an AS number. Example: AS4808 Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain