AS401851
County of San Diego
AS401851 is County of San Diego. It announces 3,584 IPv4 addresses in 12 prefixes, and 0 IPv6 prefixes.
United States· ARIN· allocated 2025-07-21· government
3,584
IPv4 addresses announced
12
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
3,584
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States3,584 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- COSD
- name
- County of San Diego
- org
- NMD
- org name
- County of San Diego
- org address
- The County of San Diego, County Technology Office, 1600 Pacific Highway Room 306F, San Diego, CA, 92101
- org city
- San Diego
- org country
- US
- country
- US
- source
- arin
- created
- 2025-07-21
- updated
- 2025-07-21
- abuse name
- General Contact
- abuse email
- david.lindsay@sdcounty.ca.gov
- abuse phone
- +1-619-531-5570
- abuse kind
- role
- abuse city
- San Diego
- abuse country
- US
- admin name
- General Contact
- admin email
- david.lindsay@sdcounty.ca.gov
- admin phone
- +1-619-531-5570
- admin kind
- role
- admin city
- San Diego
- admin country
- US
- tech name
- General Contact
- tech email
- david.lindsay@sdcounty.ca.gov
- tech phone
- +1-619-531-5570
- tech kind
- role
- tech city
- San Diego
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- anyip, floppydata0.11%
- None here
- None here
- None here
- None here
- None here
- None here
- Carrier IP256AT&T7.14%
- None here
- None here
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 170.213.2.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.3.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.4.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.5.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.6.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.7.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.18.0/23 | United States | not found | 17 | 2026-10-02 |
| 170.213.22.0/23 | United States | not found | 17 | 2026-10-02 |
| 170.213.131.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.132.0/24 | United States | not found | 17 | 2026-10-02 |
| 170.213.133.0/24 | United States | not found | 17 | 2026-10-02 |
| 209.77.1.0/24 | United States | not found | 17 | 2026-10-02 |
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