AS Name Org Name IPv4Prefixes IPv6Prefixes IPv4 NUMs IPv6 NUMs(/64) Registry Region Looking Glass
2CO 21ST CENTURY ONCOLOGY, INC. 2 0 3,072 0 United States
3,072 IPv4 Addresses
CIDR Description IP Num
104.251.16.0/21 21ST CENTURY ONCOLOGY, INC. 2048
104.251.24.0/22 21ST CENTURY ONCOLOGY, INC. 1024
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS23314 ORLANDOTELCO - Summit Broadband, US United States 93,696 4,294,967,296 IPv4 IPv4
IP Address Domain NUMs Domains
104.251.16.13 1 vpn.21co.com
104.251.17.28 2 owandev.com
104.251.17.30 1 archiver.21co.com
104.251.17.48 5 advmedsvc.com
104.251.17.102 1 smtp.rtsx.com
104.251.17.103 1 smtp.rtsx.com
104.251.17.149 3 mail.21co.com
104.251.17.152 1 hybrid.21co.com
104.251.17.156 1 sharepoint.21co.com
104.251.17.157 1 sharepoint.rtsx.com
ASNumber:       12228
ASName:         2CO
ASHandle:       AS12228
RegDate:        2010-06-02
Updated:        2016-09-26    
Ref:            https://rdap.arin.net/registry/autnum/12228


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


OrgNOCHandle: THEIS31-ARIN
OrgNOCName:   Theissen, Kevin 
OrgNOCPhone:  +1-239-344-2222 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

OrgAbuseHandle: BANIC1-ARIN
OrgAbuseName:   Banic, Tim 
OrgAbusePhone:  +1-239-938-9355 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BANIC1-ARIN

OrgAbuseHandle: THEIS31-ARIN
OrgAbuseName:   Theissen, Kevin 
OrgAbusePhone:  +1-239-344-2222 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

OrgNOCHandle: BANIC1-ARIN
OrgNOCName:   Banic, Tim 
OrgNOCPhone:  +1-239-938-9355 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/BANIC1-ARIN

OrgTechHandle: THEIS31-ARIN
OrgTechName:   Theissen, Kevin 
OrgTechPhone:  +1-239-344-2222 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

OrgTechHandle: BANIC1-ARIN
OrgTechName:   Banic, Tim 
OrgTechPhone:  +1-239-938-9355 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/BANIC1-ARIN

RAbuseHandle: THEIS31-ARIN
RAbuseName:   Theissen, Kevin 
RAbusePhone:  +1-239-344-2222 
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

RTechHandle: THEIS31-ARIN
RTechName:   Theissen, Kevin 
RTechPhone:  +1-239-344-2222 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN

RNOCHandle: THEIS31-ARIN
RNOCName:   Theissen, Kevin 
RNOCPhone:  +1-239-344-2222 
RNOCEmail:  [email protected]
RNOCRef:    https://rdap.arin.net/registry/entity/THEIS31-ARIN