% 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:       204.154.184.0 - 204.154.191.255
CIDR:           204.154.184.0/21
NetName:        BCBSKS
NetHandle:      NET-204-154-184-0-1
Parent:         NET204 (NET-204-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Blue Cross Blue Shield of Kansas, Inc. (BCBSK)
RegDate:        1994-11-03
Updated:        2021-12-14
Ref:            https://rdap.arin.net/registry/ip/204.154.184.0

OrgName:        Blue Cross Blue Shield of Kansas, Inc.
OrgId:          BCBSK
Address:        1133 SW Topeka Blvd.
City:           Topeka
StateProv:      KS
PostalCode:     66629-0001
Country:        US
RegDate:        1994-11-03
Updated:        2025-04-07
Ref:            https://rdap.arin.net/registry/entity/BCBSK

OrgAbuseHandle: KJM26-ARIN
OrgAbuseName:   Mitchell, Kristi J
OrgAbusePhone:  +1-785-291-8303 
OrgAbuseEmail:  Kristi.Mitchell@bcbsks.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/KJM26-ARIN

OrgTechHandle: TERRI14-ARIN
OrgTechName:   Terril, Scott 
OrgTechPhone:  +1-785-291-8147 
OrgTechEmail:  scott.terril@bcbsks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TERRI14-ARIN

OrgTechHandle: PETER1692-ARIN
OrgTechName:   Peterson, Larry 
OrgTechPhone:  +1-785-291-6267 
OrgTechEmail:  larry.peterson@bcbsks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/PETER1692-ARIN

OrgTechHandle: SAS83-ARIN
OrgTechName:   Steves, Scott Allan
OrgTechPhone:  +1-785-250-1577 
OrgTechEmail:  scott.steves@bcbsks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SAS83-ARIN

OrgTechHandle: KJM26-ARIN
OrgTechName:   Mitchell, Kristi J
OrgTechPhone:  +1-785-291-8303 
OrgTechEmail:  Kristi.Mitchell@bcbsks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/KJM26-ARIN

OrgTechHandle: ELLIO453-ARIN
OrgTechName:   Elliott, Zac 
OrgTechPhone:  +1-785-633-8896 
OrgTechEmail:  zac.elliott@bcbsks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ELLIO453-ARIN

OrgTechHandle: SAMPL38-ARIN
OrgTechName:   Sample, Mark 
OrgTechPhone:  +1-785-291-6540 
OrgTechEmail:  mark.sample@bcbsks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SAMPL38-ARIN

OrgTechHandle: WHITE1518-ARIN
OrgTechName:   White
OrgTechPhone:  +1-785-291-6471 
OrgTechEmail:  Joey.White@bcbsks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/WHITE1518-ARIN

RTechHandle: DWS34-ARIN
RTechName:   Steinlage, Dennis W
RTechPhone:  +1-785-291-7750 
RTechEmail:  Dennis.Steinlage@bcbsks.com
RTechRef:    https://rdap.arin.net/registry/entity/DWS34-ARIN

RTechHandle: KJM26-ARIN
RTechName:   Mitchell, Kristi J
RTechPhone:  +1-785-291-8303 
RTechEmail:  Kristi.Mitchell@bcbsks.com
RTechRef:    https://rdap.arin.net/registry/entity/KJM26-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.
#