AS401851
County of San Diego
Scanned 0s ago
🔄 Rescan

📋 Summary

IP address summary information
NameCounty of San Diego
CountryUS
IPv4 addresses3.6K
IPv6 addressesNot available
ASN typeTransit
RegistryARIN
AllocatedJul 21, 2025
UpdatedJul 21, 2025

🗺️ Geolocation

US

Countries by IPv4 share

US
100%

Geolocation based on WHOIS registration data.

📊 IP Ranges

IPv4: 12 | IPv6: 0
NetblockIP Count
170.213.131.0/24 256
170.213.3.0/24 256
170.213.133.0/24 256
170.213.22.0/23 512
170.213.6.0/24 256
170.213.4.0/24 256
170.213.2.0/24 256
170.213.7.0/24 256
170.213.18.0/23 512
170.213.132.0/24 256
170.213.5.0/24 256
209.77.1.0/24 256

Prefix data from RIPE Stat / RIR allocation records.

📄 WHOIS

ARIN
HandleAS401851
NameCOSD
OrganizationCounty of San Diego
Statusactive
AllocatedJul 21, 2025
UpdatedJul 21, 2025

Contacts

RegistrantCounty of San Diego
AddressThe County of San Diego County Technology Office 1600 Pacific Highway Room 306F San Diego CA 92101 United States

Source: ARIN

🔗 Peers

0 peers for this ASN

No peers found.

⬆️ Upstreams

1 upstream
ASNName
AS7018 AT&T Enterprises, LLC

Upstream data from RIPE Stat routing history.

⬇️ Downstreams

0 downstreams

No downstreams found.

🔒 RPKI / ROA

Source: rpki.zorn.ltd
PrefixOrigin ASNMax LengthValidity
170.213.131.0/24 AS401851 /24 Not Found
170.213.3.0/24 AS401851 /24 Not Found
170.213.133.0/24 AS401851 /24 Not Found
170.213.22.0/23 AS401851 /23 Not Found
170.213.6.0/24 AS401851 /24 Not Found
170.213.4.0/24 AS401851 /24 Not Found
170.213.2.0/24 AS401851 /24 Not Found
170.213.7.0/24 AS401851 /24 Not Found
170.213.18.0/23 AS401851 /23 Not Found
170.213.132.0/24 AS401851 /24 Not Found
170.213.5.0/24 AS401851 /24 Not Found
209.77.1.0/24 AS401851 /24 Not Found

RPKI validation powered by rpki.zorn.ltd (Routinator).

Refresh AS401851 New Lookup Domain Health