AS Number
AS401851
AS Name
COSD
Org Name
County of San Diego
Registry

arin

RegDate

1995-02-10

Updated

2025-06-27

AS401851 Looking Glass
IPv4Prefixes

12

IPv6Prefixes

0

IPv4 NUMs

3,584

IPv6 NUMs(/64)

0

3,584 IPv4 Addresses
CIDR Description IP Num
170.213.2.0/24
County of San Diego 256
170.213.3.0/24
County of San Diego 256
170.213.4.0/24
County of San Diego 256
170.213.5.0/24
County of San Diego 256
170.213.6.0/24
County of San Diego 256
170.213.7.0/24
County of San Diego 256
170.213.18.0/23
County of San Diego 512
170.213.22.0/23
County of San Diego 512
170.213.131.0/24
County of San Diego 256
170.213.132.0/24
IRR InValid
County of San Diego 256
170.213.133.0/24
County of San Diego 256
209.77.1.0/24
IRR InValid
County of San Diego 256
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US United States 93,221,120 2,529,770,995,712 IPv4 IPv4
ASNumber:       401851
ASName:         COSD
ASHandle:       AS401851
RegDate:        2025-07-21
Updated:        2025-07-21    
Ref:            https://rdap.arin.net/registry/autnum/401851


OrgName:        County of San Diego
OrgId:          NMD
Address:        The County of San Diego
Address:        County Technology Office
Address:        1600 Pacific Highway Room 306F
City:           San Diego
StateProv:      CA
PostalCode:     92101
Country:        US
RegDate:        1995-02-10
Updated:        2025-06-27
Ref:            https://rdap.arin.net/registry/entity/NMD


OrgTechHandle: GENER99-ARIN
OrgTechName:   General Contact 
OrgTechPhone:  +1-619-531-5570 
OrgTechEmail:  mavette.sadiledevera@sdcounty.ca.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/GENER99-ARIN

OrgAbuseHandle: GENER99-ARIN
OrgAbuseName:   General Contact 
OrgAbusePhone:  +1-619-531-5570 
OrgAbuseEmail:  mavette.sadiledevera@sdcounty.ca.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GENER99-ARIN