% 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:       88.151.128.0 - 88.151.135.255
CIDR:           88.151.128.0/21
NetName:        SL-2045
NetHandle:      NET-88-151-128-0-1
Parent:         88-RIPE (NET-88-0-0-0-1)
NetType:        Direct Allocation
OriginAS:       AS18450
Organization:   SipNav LLC (SL-2045)
RegDate:        2024-04-24
Updated:        2024-04-24
Ref:            https://rdap.arin.net/registry/ip/88.151.128.0

OrgName:        SipNav LLC
OrgId:          SL-2045
Address:        12600 Hill Country Blvd #275
City:           Bee Cave
StateProv:      TX
PostalCode:     78738
Country:        US
RegDate:        2020-11-16
Updated:        2024-04-25
Ref:            https://rdap.arin.net/registry/entity/SL-2045

OrgDNSHandle: RICEK56-ARIN
OrgDNSName:   Rice, Ken 
OrgDNSPhone:  +1-888-411-0268 
OrgDNSEmail:  krice@sipnavigator.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/RICEK56-ARIN

OrgDNSHandle: ADMIN6139-ARIN
OrgDNSName:   Admin
OrgDNSPhone:  +1-888-411-0268 
OrgDNSEmail:  arin@sipnavigator.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/ADMIN6139-ARIN

OrgTechHandle: ADMIN6139-ARIN
OrgTechName:   Admin
OrgTechPhone:  +1-888-411-0268 
OrgTechEmail:  arin@sipnavigator.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN6139-ARIN

OrgTechHandle: RICEK56-ARIN
OrgTechName:   Rice, Ken 
OrgTechPhone:  +1-888-411-0268 
OrgTechEmail:  krice@sipnavigator.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RICEK56-ARIN

OrgNOCHandle: ADMIN6139-ARIN
OrgNOCName:   Admin
OrgNOCPhone:  +1-888-411-0268 
OrgNOCEmail:  arin@sipnavigator.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ADMIN6139-ARIN

OrgAbuseHandle: ADMIN6139-ARIN
OrgAbuseName:   Admin
OrgAbusePhone:  +1-888-411-0268 
OrgAbuseEmail:  arin@sipnavigator.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN6139-ARIN

OrgRoutingHandle: ADMIN6139-ARIN
OrgRoutingName:   Admin
OrgRoutingPhone:  +1-888-411-0268 
OrgRoutingEmail:  arin@sipnavigator.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ADMIN6139-ARIN

OrgRoutingHandle: RICEK56-ARIN
OrgRoutingName:   Rice, Ken 
OrgRoutingPhone:  +1-888-411-0268 
OrgRoutingEmail:  krice@sipnavigator.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/RICEK56-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
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-d	Associated reverse domain