AS Number
AS13891
AS Name
21ST-CENTURY-ONCOLOGY-INC
Org Name
21ST CENTURY ONCOLOGY, INC.
Country / Region
United States
Registry

arin

RegDate

2006-01-30

Updated

2016-09-26

AS13891 Looking Glass
IPv4Prefixes

1

IPv6Prefixes

0

IPv4 NUMs

1,024

IPv6 NUMs(/64)

0

1,024 IPv4 Addresses
CIDR Description IP Num
104.251.28.0/22
IRR InValid
21ST CENTURY ONCOLOGY, INC. 1024
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS209 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US United States 20,083,200 1,112,933,728,256 IPv4 IPv4
IP Address Domain NUMs Domains
104.251.30.200 1 cbo-vpn.21co.com
104.251.31.17 3 securemail.21co.com
ASNumber:       13891
ASName:         21ST-CENTURY-ONCOLOGY-INC
ASHandle:       AS13891
RegDate:        2006-04-10
Updated:        2010-01-28    
Ref:            https://rdap.arin.net/registry/autnum/13891


OrgName:        21ST CENTURY ONCOLOGY, INC.
OrgId:          2CO
Address:        2234 Colonial Blvd
City:           Fort Myers
StateProv:      FL
PostalCode:     33907
Country:        US
RegDate:        2006-01-30
Updated:        2016-09-26
Ref:            https://rdap.arin.net/registry/entity/2CO


OrgAbuseHandle: THEIS31-ARIN
OrgAbuseName:   Theissen, Kevin 
OrgAbusePhone:  +1-239-344-2222 
OrgAbuseEmail:  kevin.theissen@21co.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

OrgTechHandle: THEIS31-ARIN
OrgTechName:   Theissen, Kevin 
OrgTechPhone:  +1-239-344-2222 
OrgTechEmail:  kevin.theissen@21co.com
OrgTechRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

OrgNOCHandle: BANIC1-ARIN
OrgNOCName:   Banic, Tim 
OrgNOCPhone:  +1-239-938-9355 
OrgNOCEmail:  tbanic@21co.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/BANIC1-ARIN

OrgNOCHandle: THEIS31-ARIN
OrgNOCName:   Theissen, Kevin 
OrgNOCPhone:  +1-239-344-2222 
OrgNOCEmail:  kevin.theissen@21co.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

OrgTechHandle: BANIC1-ARIN
OrgTechName:   Banic, Tim 
OrgTechPhone:  +1-239-938-9355 
OrgTechEmail:  tbanic@21co.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BANIC1-ARIN

OrgAbuseHandle: BANIC1-ARIN
OrgAbuseName:   Banic, Tim 
OrgAbusePhone:  +1-239-938-9355 
OrgAbuseEmail:  tbanic@21co.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BANIC1-ARIN